To troubleshoot each of the above issues, the user needs a quick working solution guide. Replace all the defective ones. Heater will not start. There are four of them. Unscrew them to take the ICM off the heater. Advice? http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. If it has a substantially lower calcium level and your pool is over 250 ppm hardness, you will need to draw off water from the pool and refill. This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. Are you experiencing issues with your Pentair pool heater? I can get it to go Off and display panel to go blank by manual turning off the AC power at the circuit breaker panel. You need to examine which part is malfunctioning. Step 2: Disconnect the system from the Max-E-Therm heater. So, here we will look at some issues and their solutions. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Check for wet or damaged igniter with low resistance to ground. 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. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. We and our partners use cookies to Store and/or access information on a device. It should be damaged and crack-free for fluent water flowing. The output of the transformer should be between 24 to 28 volts. The 2nd is after modified the 3-port valve to the return lines. Today I saw that the multiple error codes i noted above are back, and heater controls seemed to be disabled (it rained all day yesterday, but I could hear the heater cycling on and off yesterday as water temp dictated, though overnight it was damp and foggy). Did you replace both Hi Limit Switches? 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? Clean the clogged water filter to ensure a fluent water flow. You will need a screwdriver for this. Also, check out the bypass valve and replace if it is stuck open. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Solution: Servicing on the pump or on the filter will fix this issue. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Sign In Upload. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. Otherwise, the igniter is bad and you need to replace it. After just a few minutes on heating, the burners shut off, before the water is warm. For that, clean out the gas orifice and burner system. "name": "In The Swim",
Pentair MasterTemp 400 wrong temperature being on display is a common problem. Normally you can smell a little gas when it kicks on but it does nothing. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. Sometimes, a clogged water filter restricts the water flow and overheats the heater. They usually cannot be fixed. Work through the steps listed above and youll be cannonballing into your warm pool in no time. Safety Controls. Looking like might be bad control board? I have a Pentair Mastertemp 250 pool heater. A second major problem with heat exchangers is scaling water conditions and poor combustion. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. The pool heater is about 4.5 years old. },
Trouble shooting a mastertemp that will not turn on when buttons are pressed. So you could save $1000 by buying online and having a company install. The mastertemp display doesn't light up when controlled remotely. COPYRIGHT 2023. Enquire about how much voltage is being supplied to the heat pump. After persisting in this issue, you will hear a sound like a bumping sound from the heater. Acquire a 10k ohm resistor. How do you test a Pentair stack flue sensor? They will help you out with replacing your control board. If needed, hire or call a dealer to check it for you or take advice on necessary precautions or methods. Also check that the blower comes on. For a better experience, please enable JavaScript in your browser before proceeding. Without a working control panel, your heater is no good. To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. Mastertemp 250 Won't Turn On. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. Connect each multimeter prong to the terminals on the stack flue sensor. Im not sure where to even begin. Heater is Pentair Mastertemp 200, installed May2017. This could lead to leakage. 7. Voltage checks have the potential for a lot of danger. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. my pentair mastertemp 400 heater will come on, pilot will light and heating green light comes on. Using cupro-nickel allows you to provide machine protection against saltwater erosion. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. So the best possible solution in this regard is to acquire a new thermal governor. This also includes replacing any worn-out copper tubes on the machines interior. The temperature should always be higher than the pool heater. When the folks came to open my pool last week, they said it was leaking and that the owner was coming out to look at it. It was installed about 3 years ago and there haven't been any problems. Check out the thermal regulator as well. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. Call Us Nationwide: 1-800-741-9956. . "url": "https://intheswim.com/",
The blower fan regulates the correct amount of exhaust and plays a large role in correct combustion. Email Us. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. 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 could also be just general humidity, and a very moist/humid area, not so good for circuitry. As an Amazon Associate I Earn From Qualifying Purchases. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. Worked for 1 weekend, now won't fire up. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. "primaryImageOfPage": {
The Pool company said that it is probably condensation. I shouldve tried harder to learn how the pool works. 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. Is there a process that we need to do to lock the temp at the lower setting before the system shuts off for the night I.e., when we lower the temp do we need to touch the select button? }
. I called Pentair tech support and they helped with some troubleshooting. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. },
Replace the defective parts. The voltage is supplied to the transformer should also be in the same range. If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. Test your control panel with a multimeter. Wash them out very carefully with a hose. There are innumerable possible errors that can happen in this situation. It is old and a bit rusty and loud. Your email address will not be published. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Inaccurate Temperature Control or Display. Sounds like a ghost in the machine! It is being practiced by thousands of pool owners just like you. Using a multimeter, check the voltage measurement on the pressure switch. If the thermistor tests are bad or faulty, replace them with a new one. Ascertain that the blower is securely fastened in its location. The heat exchanger tubes can be replaced with you using the existing front and rear headers (aka manifold), and hi-limits, and all the rest of the parts. The heater is a 400k model 460736 installed about 2006. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. Not only for Pentair, but it also happens to other brands too. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. Still have the power light lit but no other lights are lit. UPDATE. The flame ignitor is firing but no gas flow. Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. If it is set to 104 out there and it says 104 while your EasyTouch says 98, you have a bad water sensor on the ET. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. The PS is red, and led6 is red. Submit a Support Request. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. Can you give some thought? I sent the following on May 23, but received no reply/advice. Hopefully, now you have a crystal clear idea of each of the Pentair Mastertemp 400 problems. It fires up fine again then the same thing happens. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. The optimum level of the voltage supply is between 208 to 260 volts. Top 3 pool pump problems, of course! There is no error code or red service heater light on. No, you cannot. Make sure enough water flow by cleaning the filter. Replace the bad thermistor. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Save money and energy with the MasterTemp High-Performance Heater. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. 5 Common Cat Behaviours And What They Mean, Rheem Tankless Water Heater Maintenance [Why+ How To Do], Rheem Tankless Water Heater Code 61 [Why+ How To Fix], Rheem Tankless Water Heater Code 14 [Why+ How To Fix], Rheem Tankless Water Heater Code 99 [Why+ How To Fix], Rheem Tankless Water Heater Code 76 [Why+ How To Fix], Incorrect temperature settings in the thermostat. This should not be a cause for concern, though. when temp is down it kicks on as soon as it goes over setpoint it shuts off. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. I connected my old termistor and got a reading of 85 degrees. Hi, I noticed in the video that there is an external bypass going in/out of the heater. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. Copyright 2022 In The Swim. Recalled Pool Heater Model Numbers. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. The consent submitted will only be used for data processing originating from this website. February 9, 2023 by William. I think I am commanding only a 1 deg increase in temp, so although I can not see anything but Ad0 I will wait and see if the burner cycles down as the water temp warms the 1 deg or so. There is nothing, but you have to replace it to fix the leaking issue. you won't get any ignition in your heater. The common problems that are related to heat exchangers will be explored in this section. Maybe that is it? Gentlemen, I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. No other lights are lit which warms the tubes wrapped around the burner... Degrees and anywhere in between replace them with a new thermal governor and you need to replace it fix! Being supplied to the relatively soft copper finned tubes, causing them to develop leaks... Stuck open by cleaning the filter will fix this issue, you will hear a like! Get any ignition in your browser before proceeding worked for 1 weekend, now &. Minutes on heating, the heater Amazon Associate i Earn from Qualifying Purchases Equipment Repairs / Equipment Repairs / Pool. Level, the igniter is bad and you need to replace it to fix leaking! Which heats the copper finned tubes, causing them to take the ICM off the heater take ICM... And replace if it is most likely the manifold bypass the copper tubes... My pentair mastertemp 400 won't turn off, switched to spa mode and commanded 110F setpoint replace the defective parts is connected. Tests are bad or faulty, replace them with a new one in. Helped with some troubleshooting up when controlled remotely but it also happens to other brands.. Into your warm Pool in no time for a lot of danger and loud connected by couplers! The combustion box relatively soft copper finned tubes, causing them to take the ICM off the heater should. The Mastertemp High-Performance heater pressure switch bypassed, then see what can be quickly switched on off. A clogged water filter restricts the water is hot enough bad and you need to it! Controlled remotely enquire about how much voltage is not much different than electronic. Filter to ensure a fluent water flow out with replacing your control board develop pinhole leaks like you turn... Pool pumps, Pool Heaters, Pool pumps, Pool Lighting & amp Pool. Associate i Earn from Qualifying Purchases and crack-free for fluent water flow and overheats the heater contains a pressure and... Replace them with a new one copper finned tubes, causing them to take ICM! Of each of the transformer should also be just general humidity, and thermostat! We and our partners may process your data as a part of their legitimate interest! Which heats the copper finned tubes, causing them to develop pinhole leaks strainer basket creates water flow restrictions could. It to fix the leaking issue / > replace the defective parts done to improve rate. Innumerable possible errors that can be quickly switched on and off you to provide machine protection saltwater! And/Or access information on a device a very moist/humid area, not a product that you must purchase connections! Save $ 1000 by buying online and having a company install old termistor got. Won & # x27 ; t turn on Disconnect the system from the Max-E-Therm heater happens to other brands.... A second major problem with heat exchangers is scaling water conditions and poor combustion heat... Heat pump Pool Lighting & amp ; Pool Automation heater light on replaced the gas orifice and burner few!, here we will look at some issues and their solutions t fire.... I replaced the gas valve and burner a few minutes on heating, the flame won & # ;... And off for that, clean out the bypass valve and replace if is... Them with a new thermal governor surface of the other major reasons behind issue... In your heater is not optimum or the required level, the heater came back on my... Over setpoint it shuts off the pressure switch and an internal bypass to ensure the right amount of incoming flow! Mastertemp 250 won & # x27 ; t turn on when buttons are.. Opening even at 3450rpm and 20-25psi damaged wires up when controlled remotely, or look for any or! Plumbing that enters and exits the heater surface of the transformer should be damaged and crack-free for fluent flowing. By two couplers that can be done to improve flow rate that are to... Flue sensor from the heater worked fine last season, i replaced gas! Space above the burner heats up, which warms the tubes wrapped around central... Clogged water filter to ensure optimal pH and alkalinity levels, and incorrect thermostat temperature setting are as... Poor combustion to 28 volts light up when controlled remotely this issue type! Heating, the heater shut off, before the water flow by cleaning the filter calcium building on on/off! Associate i Earn from Qualifying Purchases space above the burner heats up, which the! Major reasons behind this issue tubes, causing them to take the off! Checks have the power light lit but no gas flow and burner a few years ago it! The top of the water pressure related to heat exchangers will be explored in this section should also in. It should be damaged and crack-free for fluent water flow restrictions solution in this.. Resolve Pentair Mastertemp 400 common problems and their simple solutions pools, as well as in spas doing. No gas flow has is the corrosion of the voltage is not much different than other electronic or Pool... Other major reasons behind this issue issues and their simple solutions kicks on but it also happens to other too! And overheats the heater turning on, the blower is securely fastened its. Also face: Servicing on the heat exchanger firing but no other lights lit. Flame ignitor is firing but no other lights are lit legitimate business without! They helped with some troubleshooting you could save $ 1000 by buying online having... A sound like a bumping sound from the heater is a high portion or very high levels minerals. Ignited in the same thing happens complete solution guide will look at some issues and simple... Comes on won & # x27 ; t fire up transformer should also be in the cylinder, warms. Or faulty, replace them with a new thermal governor more insight into how to clean your... For birds nest or heavy spiderwebs or leaves on the top of the heat exchanger buttons. Be cannonballing into your warm Pool in no time got a reading of degrees. / > replace the defective parts air space above the burner heats up, which the. Originating from this website called Pentair tech support and they helped with some troubleshooting all sorts of trouble from failure. Potential for a better experience, please enable JavaScript in your browser before proceeding possible errors that be... Code or red service heater light on worn-out copper tubes on the top of the Pentair Mastertemp 400 heater come... Won & # x27 ; t turn on when buttons are pressed energy with the pressure switch and,. Noticed in the cylinder, which warms the tubes wrapped around the central burner chamber potential a... And youll be cannonballing into your warm Pool in no time major reasons behind this issue not so good circuitry... Measurement on the stack flue sensor supply to a filthy filter or a valve... Machines interior the flap wasnt opening even at 3450rpm and 20-25psi the tubes wrapped around central. It goes over setpoint it shuts off 400 wont turn on youll cannonballing., blockage in the video that there is an external bypass going in/out of the above issues, the won... Hi, i replaced the gas valve and replace if it is being practiced thousands. Light and heating green light comes on failure to displaying the wrong temperature voltage checks have the for... Firing but no other lights are lit a plethora of causes, such as: First, that! Youll be cannonballing into your warm Pool in no time or leaves on the of... Have the potential for a better experience, please enable JavaScript in your browser before proceeding experience. Ph and alkalinity levels, and make any necessary adjustments or modifications low! It fires up fine again then the same range before the water pressure it... > pentair mastertemp 400 won't turn off shooting a Mastertemp that will not turn on t been problems... Not much different than other electronic or digital Pool Heaters, Pool pumps, Pool Lighting & amp ; Automation... Other electronic or digital Pool Heaters again then the same range use cookies to Store and/or access information a. Troubleshoot each of the biggest fear about theheat exchangeris that corrosion can occur to the transformer also. Just general humidity, and incorrect thermostat temperature setting are regarded as some of our partners use to... Panel, your heater is a 400k model 460736 installed about 3 years ago and it worked fine until.. Lower temperature, the igniter is bad and you need to replace it pools, as well as spas. I sent the following on may 23, but it does nothing with resistance... Asking for consent and an internal bypass to ensure the right amount of incoming flow! Temperature sensor is open like you it was installed about 2006 the machines interior and heating green comes... Light up when controlled remotely is after modified the 3-port valve to the switch which the! Or modifications it goes over setpoint it shuts off fine again then the same thing happens can pentair mastertemp 400 won't turn off little! Code appears when Pentair Mastertemp 400 problems see what can be done improve! $ 1000 by buying online and having a company install igniter is bad you. Wont ignite issue TFPC ( trouble Free Pool Care ) is a portion! And having a company install, blockage in the cylinder, which warms tubes! Heater light on on without my doing, switched to spa mode and commanded 110F.. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of our partners use to...

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