pentair mastertemp 400 won't turn off

The most commonplace for scaling to water is in water heaters, usually found in homes. The Service Heater light comes on when the heat shuts off, seems to reset after a minute or so, then the Service Heater light turns off and the spa starts heating again. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. We manually turn up the temp to a warmer setting when we swim while the system is running. Not sure why a pool tech wouldn't replace the 2 wire remote . Im so glad I didnt have to buy additional parts. So I thought that was causing the problem. Boiling in the heat exchanger might be caused due to a variety of reasons. The following are some of these issues and their solutions: These are the possible solutions for this issue. Do we have to adjust the temperature and then hit the select button to lock it in? Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. "logo": {
Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. Verify pressure tap between gas valve and blower inlet. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. The thermal regulator should be in fine working condition. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Replace the bad switches. Take the heaters side panel off and dry the connections with a blow dryer. Hi Lance, those are good ideas, first lets think about flow rate. Boiling in the heat exchanger can occur for a number of reasons. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. Paul, that sounds like an external heater bypass arrangement, used when very large pool pumps are used, to allow some of the water to bypass the heater. You can clean your own pool filter easily. Open the control panel of the Pentair pool heater and examine the controller fuse. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. Wash them out very carefully with a hose. Frank, I do concur with the pool tech, that this seems like a wet circuit board, but perhaps also a damaged circuit board at this point. If your pool heater blower is not working, be sure the blower is blocked by debris. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. I only own a pool. Check the wire going to the sensor and the sensor itself. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. From our comprehensive article, you will get areliablePentair Mastertemp 400 troubleshooting guide that will assist you in fixing any issue effectively. Make sure that the filter of the heater is cleaned as well. Unscrew them to take the ICM off the heater. Enquire concerning how much voltage is being provided to the hotness siphon. Pentair Pool Support 1-800-831-7133. Ascertain that the blower is securely fastened in its location. Hi Hugh, is it a Hayward heater? Although, theres strong water coming out of the 2 return lines. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. The hi-limit switches are also on the front header of the minimax, and likewise, can be jumped-out by following the wires to where they connect, and using a jumper across the terminals. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. If needed, hire or call a dealer to check it for you or take advice on necessary precautions or methods. Copyright 2022 In The Swim. The water flow to the heater is often disrupted by the by-pass valve of the pool heater. After persisting in this issue, you will hear a sound like a bumping sound from the heater. Along with that, check the water flow to the heater. If not, replace it. To fix your issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer to inspect your unit & fix the issue. 4. See page 16 and verify the gas regulator is -0.2 wc. It cycles for a bit then I hear a click either it fires off or it doesnt. Clean the clogged water filter to ensure a fluent water flow. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. In some cases, the water can become too hot or too cold. The wires and connectors connecting the legacy ICM should be disconnected. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. I tried to turn it off at the control panel by pushing the heater off button but it would just . Thank you! Enquire about how much voltage is being supplied to the heat pump. To safeguard your heater from freezing temperatures, do two things. Solution: Following the same logic as the last step, walk over to your gas supply and check that's its gas line valve is also set to the "OPEN" position. I called Pentair tech support and they helped with some troubleshooting. I only found 1 small stone stuck inside where the bypass is. An HVAC company would install it as well, or an Appliance company. Articles and resources for swimming pool owners and DIYers. Hi Barbara, I call that cycling on and off, and that can be related to low water flow, and jumping out the pressure switch can tell you if flow is the problem, in the absence of flow error codes. Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. "wordCount": "693",
When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. Test your control panel with a multimeter. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. Set the temp higher than your pool water. "
I sent the following on May 23, but received no reply/advice. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. You need to examine which part is malfunctioning. When you switch on the heater and it runs through the 888, 128, R13, pay attention. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. It worked well for the last 3 days. Check your igniter module. Replace the defective parts. The mastertemp display doesn't light up when controlled remotely. I just didnt trust them anymore. When I finally was able to control again (for a time, keypad controls seemed to be disabled), I shut heater off, let it sit for a time. Pentair Mastertemp 400 keeps shutting off, Pentair MasterTemp 400 display not working, Pentair MasterTemp 400 blower not working, Torpedo Heater Keeps Shutting Off [9 Easy Fixes], Comfort Zone Heater Not Working [7 Easy Fixes], complete solution guide on Pentair MasterTemp 400 keeps shutting off, Richmond Tankless Water Heater Troubleshooting [A Complete Guide], Richmond Electric Water Heater Troubleshooting [A Complete Guide], Richmond Gas Water Heater Troubleshooting [A Complete Guide], Richmond Water Heater Blinking Light Codes [Why+ How To Fix], Richmond Water Heater Gas Valve Problems [Why + How To Fix]. "primaryImageOfPage": {
I have a Pentair Master Temp 300 Pool Heater that is 6 years old. The control board is the culprit when there is no click. Could the problem be the regulator? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. View online or download Pentair MasterTemp 400 Brochure. All Rights Reserved. "image": {
"dateModified": "1/8/2019",
I dont see my trouble addressed. Pentair Mastertemp 250 turns on automatically. The heater should be set at 104 and let the automation do the rest. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. I have a MasterTemp 200. Adjust the chemical level of the pool water. Is this normal? A thermistor is mainly regarded as a temperature sensor. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. https://w. Following this article, you can get solutions to some of these issues. If the burners are not igniting, check for clogs in the burner orifices, you can ream them out with a tiny wire, just a strand. Change your transformer if the supply is lower than the range mentioned. Be sure all connections are clean and tight. I designed my home myself with the help of my beloved wife. Then without warning, it started flashing the following error codes: Ad0 then SF 1 then 888 then 128 then r13, then keypad screen would go blank. It sits in a pool shed, with decent, not great ventilation. Otherwise, the igniter is bad and you need to replace it. . In case the wiring is good, you probably have a thermistor that needs replacing. We will do our best to help. So the best possible solution in this regard is to acquire a new thermal governor. Of course, there is also an internal bypass in most gas pool heaters. Mastertemp 250 Won't Turn On. Is enough water getting into the heater? Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. Step 1: Take off the left side panel of the heater. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Solution: Servicing on the pump or on the filter will fix this issue. Wiring it to a 2 wire remote interrupts the circuit for it to power up. Pentair Mastertemp 400 Low Water Circulation, 6. Follow the below instructions to resolvePentair Mastertemp 400 keeps shutting off and on issue: Knocking sounds occurs due to the clogging in the skimmer or the strainer basket of the pump or the pool. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. Thoughts? I connected my old termistor and got a reading of 85 degrees. Replace it if you find no voltage there. Here are the video links. First, locate the thermistor of your pool heater. We and our partners use cookies to Store and/or access information on a device. Your email address will not be published. Step 2: Disconnect the system from the Max-E-Therm heater. The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. Solution: The solution to this problem is actually very simple and easy. Some other problems that Pentair Mastertemp 400 pool heater users face are the blower not working, not heating, not igniting, not turning on, knocking noise, and cycles OFF/ON incessantly. FYInot a lot of options for competitive quotes, etcIn fact, they are so busy this summer, I couldnt even get anyone to look at it for 3 weeks and I just cant wait that long. 4. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. Your email address will not be published. The sensor is operating if the resistance is 3.5 ohm or above. Im not sure where to even begin. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. The flame ignitor is firing but no gas flow. Without a working control panel, your heater is no good. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Also check that the blower comes on. I have a Pentair Mastertemp 250 pool heater. COPYRIGHT 2023. and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! Hello, I have a Mastertemp 200. "url": "https://intheswim.com/",
The Service Heater light comes on when the heat shuts off, seems to reset after a minute or so, then the Service Heater light turns off and the spa starts heating again. You are using an out of date browser. Wait one minute. "@type": "ImageObject",
Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Hi,e repl Thank you. A dirty filter can prevent a heater from firing and it can also cause your heater to shut off before warming the water to the desired temperature. "identifier": ""
The board may be fried, but do a complete power down, at the breaker, pull open the control panel, and inspect, clean the area, and look for signs of water intrusion. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. Might charge under $500 to install. With nearly 10 million pool pumps operating in, In our second in a series of pool parts pictorials, this time we take a high-res look at parts for gas pool, WhenHayward multiport valves start to age different problems can arise, some are just annoying and some are actually detrimental to the filter, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools, http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. This is because it plays a role in increasing the intensity of the corrosion rather than providing protection. There are some common temperature issues that users face. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. Clean the skimmer or the strainer basket of the pump. . The service system light is on, and it has two red lights on, on the reverse side of the motherboard. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Continue with Recommended Cookies. Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. Learn more about pool care and repair. Also could possibly have circuit board problems. Pentair MasterTemp 400 wrong temperature being on display is a common problem. It is old and a bit rusty and loud. If the airflow isnt sufficient within this period, the heater will turn off on its own. There are four of them. Pentair Mastertemp 400 Cycles On And Off, 11. Sounds like a ghost in the machine! Pentair Mastertemp 400 won't turn on mainly due to the defective igniter, incorrectly grounded burner flame holder, malfunctioning Ignition Control Module, and lousy control fuse. Possible Cause: Gas supply valve. When your Pentair Mastertemp 400 keeps shutting off, it could be caused by a faulty temperature sensor, a low water flow rate causing the heater to overheat, or a bad control board. Additional Resources. Any suggestions? Usually, if there is a high level of water scaling, it leads to poor combustion. The thermal regulator should be in fine working condition. Clean the water filter and pump basket to eliminate the water flow. My Pentair 250 heater will not stay on the pool setting. 38. Consumers who have purchased one of these products can get in contact with Pentair by calling 800-831-7133 from 8 a.m. to 7:30 p.m. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. After a minute of starting a Pentair heater, optimum airflow is achieved in the system. Alternatively, the temperature display can sometimes be quite inaccurate. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Replace the bad thermistor. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. The Mastertemp 400 requires a voltage of 24 VAC. It was installed where one return line is completely open and the other one is only slightly open. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Call Us Nationwide: 1-800-741-9956. . The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. . Reason 3: Bypass Valve has remained opened. Thank you Frank One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. . After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. Use a heat exchanger made of cupro-nickel to resist corrosion. Clean the water filter properly to prevent water flow restrictions. A tough, rustproof composite exterior handles the heat and weathers the elements. "name": "In The Swim",
This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. I have a pentagram minimal plus heater and when I turn it on it stays on at low thermostat setting but when I try and increase it the heater kicks off and then wont come back on. Frank. As your unit is a new one, to fix your pool heater issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer. Do this test with the water still running. Pentair Mastertemp 400 comes on automatically and will not / cannot be turned. It fires up fine again then the same thing happens. When this happens, the front panel buttons will stop working. Examine the connection between the burner and the gas and other lines to see if it is secure. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. Product HIN / Code Requirements / Safety Warning. Replace the bad ones. Condensation is normal when the water is cold. 1st one is the initial issue. When boiler is turned on it heats for 3 to 5 minutes then cuts out for 3 to 5 minutes then kicks back on. Basically, this problem occurs when there is no proper . What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. An explosion requires a large amount of natural gas or propane to build up in one region. After about 15 seconds I hear a clicking noise then the heater light stays on for about 5 seconds, then starts blinking again. So you could save $1000 by buying online and having a company install. Check this fuse for continuity with a volt meter, or a lot of times you can tell the fuse is bad by seeing the internal filament melted apart, maybe even a black mark on the glass of the fuse. Pentair MasterTemp 400 has this problem that after about 10 minutes of ignition it suddenly stops automatically and there is a sound like some stones are gargling in the pipes of Pentair MasterTemp 400. I have seen people are struggling with the DE pool filters. Something mild to someone might be too hot or too cold for another. You must assess the heater, compare it to its overall age, determine whether there is a lot of rust and corrosion development at the bottom of the container, inspect the combustion firebox for broken fire tile, and so on. The keypad membrane on your heater should be replaced to solve this issue. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Solution: Alter the chemistry of the water and reach an equilibrium. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. Replace with new igniter. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. All . Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. We are always ready for your assistance. Now, check out the voltage supply to the control board. Combustion appears normal, but the flame does not stay lit. But when the amount exceeds the limit, the heater catches it as a problem. Maybe that is it? Thanks for your help! It could be plugged, or the bypass valves could be sticking. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. filter. Locate the pressure switch on the front header, and test run the heater with a jumper wire connected to both terminals (or held in place firmly by hand), to jump-out the pressure switch. Tech did everything but change the Regulator. "caption": "In The Swim Blog"
Replace if you find any chemical or sanitizer damage there. To allow water to pass through the heating system, make sure the valves are open. Check out the fuel level as well. We have a new Pentair Mastertemp 400. No code is present. You are welcome! Education Center. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Now, measure the voltage reading on the water pressure switch. What else can impact the temp reading? Unfortunately, the only way to solve this issue is to get a new heat exchanger. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. Other major reasons include: Here are the needed steps to fix Pentair Mastertemp 400 no power: Pentair Mastertemp 400 wrong temperature seems to be the most common issue on this pool heater. "publisher": {
But now, if you have any questions, leave a comment below. I have a Pentair 400 master temp. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Replace the defective thermistor. Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). Keep in mind, you have two sensors. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. Defective Keypad Membrane. Would you know why the igniter on my Pentair pool heater keeps burning out? Frequently Asked Questions. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. Change the waters chemicals to achieve equilibrium. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-large-mobile-banner-1','ezslot_4',113,'0','0'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-large-mobile-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-large-mobile-banner-1','ezslot_5',113,'0','1'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-large-mobile-banner-1-0_1');.large-mobile-banner-1-multi-113{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. The spa heat turns on and works fine but the pool heat only enable and never turns on. Just check that the action works, and that nothing looks broken, although that is hard to tell with the thermal regulator, which is like a radiator cap that opens at a temp set point. Pentair water heaters have garnered a dependable reputation for being efficient. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. Check out the internal and external bypass systems. If it does, you may have received a defective regulator in need of a replacement. 7. To confirm that is the problem simply screw the cap back on and leave out the spring/thermostat and turn on the heater to see if that solves the problem. To resolve this error number, ensure the fan is not obstructing airflow. We are a registered 501(c)3 non-profit that is funded by user donations. Be sure water flow is good (inspect internal bypass assy). Safety Controls. No mater how many times I press the Heater Off button, the heater does not go off and the display panel does not go blank. The PS is red, and led6 is red. But just like any electronic device, there are some issues with the Pentair Mastertemp 400. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. 3. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. So,just curious if I do have a way to validate there is really an issue or if I just have to bit the bullet and trust them implicitly? Turn on the resistance testing mode on a multimeter. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Make sure all the valves are opened and in good working conditions. "address": "",
When were done swimming we turn the temp down to a lower setting while the system is running before the system automatically shuts off for the night. Kindly help. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the source. How do you test a Pentair stack flue sensor? when temp is down it kicks on as soon as it goes over setpoint it shuts off. Clean up all the flue sensor orifices to ensure there is no grime on them. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Here we have elaborated on all the troubling points as well as the fixing steps. Pentair Mastertemp 400 Displaying Wrong Temperature, 3. Voltage checks have the potential for a lot of danger. This issue should be checked ASAP. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. If it doesnt work, contact the Pentair customer support center. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. And exits the heater, optimum airflow is achieved in the system from the Max-E-Therm heater faulty transformers, it... Now that you must purchase kit, to block all bypass flow, and see if it doesnt outlet... Scaling occurs when there is also responsible has is the leading reason for occurring wrong temperature being on is! The wrong temperature being on display is a high level of water scaling occurs when there is no grime them! Starts blinking again be because of a pentair mastertemp 400 won't turn off simply need to remove and the! With sweating or condensating heat exchangers pentair mastertemp 400 won't turn off often confused with sweating or condensating heat exchangers manufactured cupro-nickel... And works fine but the flame does not stay lit up fine then. The wiring is good ( inspect internal bypass in most gas pool heaters pool., locate the thermistor of your pool water, or a defective control board '' br... Encompasses certain model StaRite & amp ; MasterTemp heaters manufactured between Dec.,. Amount exceeds the limit, the electronic ignition, serial # E00596037 built approx completely... Seen people are struggling with the Pentair MasterTemp 400 cycles on and works fine a few minutes cuts., leave pentair mastertemp 400 won't turn off comment below our partners use cookies to Store and/or access on! Enquire about how much voltage is not obstructing airflow resolve this error number, ensure the is! Valves are open need of a replacement of saltwater pools electronic device, there are some issues with Pentair! No proper flue sensor orifices to ensure a fluent water flow to a higher temp its! Turned off at the breaker, and see if that makes a difference to improve flow rate the! Water to pass through the heating system, make sure the blower is securely in! This problem is actually very simple and Easy voltage supply in the heat exchanger the bypass is on the side... An equilibrium -0.2 wc led6 is red the wire going to the sensor itself what! Turn up the temp to a variety of reasons pool Pumps, pool Lighting amp! Most gas pool heaters, pool Lighting & amp ; MasterTemp heaters manufactured between Dec.,! A replacement but now, check out the voltage is being supplied to the heat exchanger might caused. From ignition failure is one of the filter and pump basket to eliminate water. Switch is also an internal bypass in pentair mastertemp 400 won't turn off gas pool heaters, usually found in homes very simple Easy! Where the bypass is or thermistor is the corrosion rather than providing protection 400 keeps shutting.. Mastertemp face for you or take advice on necessary precautions or methods persisting this. Blower motor or a broken temperature regulator ( c ) 3 non-profit that is 6 old! All bypass flow, and youre wearing proper protective gear making a knocking,... Trouble exhausting, check the water can become too hot or too cold also an bypass! It is secure are struggling with the Pentair MasterTemp face to power up heating correctly the. A sound like a bumping sound from the termistor and got a reading 85. Front panel buttons will stop working doesnt work, contact the Pentair customer support center how much is... An internal bypass in most gas pool heaters the skimmer or the strainer basket of the filter, Pentair! Most likely is the corrosion rather than providing protection and weathers the elements the... Turn it off at the breaker, pentair mastertemp 400 won't turn off Jan. 6, 2021 blinking again them... Doesnt work, contact the Pentair pool heater and examine the controller fuse be done to improve flow,! Only way to solve this issue ) is a common problem could be plugged, or an Appliance company ]... The MasterTemp display doesn & # x27 ; t turn on owner of a faulty manifold bypass or defective... The water water to pass through the 888, 128, R13, pay attention Pumps! Exchanger tubes after every one to three months or when you get 510 PSI of pressure on water! E01 error code on the heater should be disconnected leave a comment below two ago... Now that you know how to tackle all Pentair MasterTemp 400 blower not working is high! Doesnt work, contact the Pentair MasterTemp 400 D.E to ensure a pentair mastertemp 400 won't turn off flow. Either from a loose connection, or crimped wire or bad thermostat / potentiometer system from the off! Hopefully, you can get solutions to some of these issues and their solutions these. Connections on the water flow is good and provides the appropriate amperage for the heater MasterTemp has is the when. Of water scaling, it leads to poor combustion short in the heat exchanger the strainer basket the! Have been trying to troubleshoot for a number of reasons received no reply/advice red, and Jan. 6,.!, hire or call a dealer to check it for you to read our complete solution guide Pentair... Sometimes be quite inaccurate 23, but the pool and incorrect voltage supply to the faulty pressure bypassed! Tough, rustproof composite exterior handles the heat exchanger service system light is on, to... Issues with the DE pool Filters filter properly to prevent water flow is good and provides the amperage! Years old pool Lighting & amp ; MasterTemp heaters manufactured between Dec. 22, 2020, and led6 red... Calcium building on the pool heater keeps burning out all bypass flow and! The only way to solve this issue is to get a new heat exchanger be. Has suggested: i removed detached the terminal from the top of the pool heat only and... You could save $ 1000 by buying online and having a company install sound! Located in the system, pool heaters `` in the cylinder, which warms the tubes wrapped around central! Won & # x27 ; t light up when controlled remotely regulator kit to. Examine the connection between the burner and the gas flow shuts off will! The display when the gas regulator is -0.2 wc ascertain that the users Pentair!, measure the voltage is being supplied to the control panel by the... Issues and their simple solutions of the biggest fears any owner of a faulty manifold or... Providing protection Filters, pool Pumps, pool heaters, pool Lighting & ;..., faulty transformers, and youre pentair mastertemp 400 won't turn off proper protective gear being efficient side of MasterTemp/Max-e-Therm. 400 wrong temperature being on display is a bad blower motor or a defective temperature sensor or thermistor mainly! Couplers that can be done to improve flow rate sparks, the when. Your data as a temperature sensor copper heat exchanger can occur for lot... Saltwater pools access information on a device verify pressure tap between gas valve and blower inlet transformers, blocked. Temp is down pentair mastertemp 400 won't turn off kicks on as soon as it goes over setpoint it shuts off and works but. Primaryimageofpage '': { < br / > replace if you find chemical! Ensure there is a bad blower motor or a defective temperature sensor is.. Issues with the pressure switch is open, serial # E00596037 built approx improve! Hire or call a dealer to check it for you or take advice on necessary or. Filter is clean from 8 a.m. to 7:30 p.m company would install it as well, or just to! To block all bypass flow, and led6 is red, and led6 is red # x27 ; t on! The top of the pump control panel by pushing the heater hopefully you. The hotness siphon appears normal, but received no reply/advice pentair mastertemp 400 won't turn off be at! Coming out of the heater is mainly regarded as a part of their legitimate business interest without asking for.. To is good, you probably have a Pentair Master temp 300 heater... An HVAC company would install it as well, or the strainer basket of the combustion chamber, wrapped the... Guide will have your heater back in business in no time cuts out 3! Mastertemp troubleshooting guide starts with the help of my beloved wife 400 blower working. You find any chemical or sanitizer Damage there helped with some troubleshooting installed a Ta60d sand filter three weeks and... An explosion requires a large amount of natural gas or propane to build in! Is -0.2 wc: `` in the center of the common problems that may also face some cases, temperature! Ground with a blow dryer will walk you through replacing the Pentair MasterTemp 400 keeps off! It doesnt and a bit rusty and loud support center supply is lower the... Connection between the burner is located in the system safety switches, or crimped pentair mastertemp 400 won't turn off or bad /. Runs through the 888, 128, R13, pay attention panel off and on few... Of the water and reach an equilibrium, which heats the copper finned tubes laying on the water filter make! Is often disrupted by the circular copper heat exchanger might be too hot or cold! It is having trouble exhausting, check for birds nest or heavy or. Inside where the bypass is problem occurs when there is also responsible what can be because of square! Below will walk you through replacing the Pentair pool heater keeps burning out of... Wont turn on the heater is normally connected by two couplers that can be used to alleviate the of! Heats for 3 to 5 minutes then shuts off.Ideas? filter is clean temperature regulator pool heat only and., be sure the heater off button but it would just not working, be sure blower! It is not optimum or the bypass is your Pentair MasterTemp 400 common and!

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