The optimum level of the voltage supply is between 208 to 260 volts. If the thermistor tests are bad or faulty, replace them with a new one. I tried removing spring on the flap and run the heater, the flap was opening in full, but heater was still giving me the same issue so I re-inserted the string back. 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. There are two. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. And again, I always thought that when something big happened, I would have to get it replaced. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. Gentlemen, If it stays running at the low thermostat setting, then let it run and if it never shuts off, until the pool is getting too warm then shut off, and turn on/off manually for a few days, until you can get a new thermostat. spa light is on. We are a registered 501(c)3 non-profit that is funded by user donations. How do you test a Pentair stack flue sensor? My MasterTemp 400 fails to work intermittently. It sits in a pool shed, with decent, not great ventilation. Hi Davy I live in Maine, so very short pool season. This residue is usually formed at the bottom. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! Frequently Asked Questions. Defective Keypad Membrane. Finally, set the thermostat temperature correctly. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. Voltage checks have the potential for a lot of danger. Would there be any kind of lockout that would prevent the heater to go into "off" mode. This erosion occurs due to a variety of reasons: To solve the problem of saltwater pools, you can use heat exchangers made out of cupro-nickel. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. Replace everything in its proper location. "width": "611",
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They said the 126 display was an error code. I tried to turn it off at the control panel by pushing the heater off button but it would just . Along with that, check the water flow to the heater. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. If the automatic gas shutoff switch has tripped, you need to reset it. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. Clean up all the flue sensor orifices to ensure there is no grime on them. "identifier": ""
There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Im so glad I didnt have to buy additional parts. The other major reasons include faulty thermal regulators, failure of the high limit switch, and damaged ignition control board. This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. Clean out the filter first to resolve the low water flow issue. Although, theres strong water coming out of the 2 return lines. The wires and connectors connecting the legacy ICM should be disconnected. Since the voltages involved here are of a very high range, they have a greater potential for accidents. The Mastertemp 400 requires a voltage of 24 VAC. As an Amazon Associate I Earn From Qualifying Purchases. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Something mild to someone might be too hot or too cold for another. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. Call Us. Ensure the correct temperature of the thermostat. You could also take the heat exchanger for servicing. If it does, you may have received a defective regulator in need of a replacement. Looking like might be bad control board? I also cannot get the red up arrow to raise the temperature to raise the desired temperature. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. The error codes will help you understand what your Pentair heater is trying to tell you. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. Check the pH of the water and make sure it is balanced. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. Thanks for the help. What's better thanTop 5 pool pump problems? 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. Not sure why a pool tech wouldn't replace the 2 wire remote . Also, check out the bypass valve and replace if it is stuck open. But the corrosion mainly occurs from the leakingof the interior parts of the heater, low water flow, open bypass valve, stuck closed of the thermal regulator, dirty filter, and imbalanced PH level on the pool water. Contact customer service and tell them about the issue. I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. Test your control board with a multimeter. Solution: Alter the chemistry of the water and reach an equilibrium. 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. Product Registration. Ascertain that the blower is securely fastened in its location. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. The control board is the culprit when there is no click. . A tough, rustproof composite exterior handles the heat and weathers the elements. Let us know if you need help finding it. So, here we will look at some issues and their solutions. Other reasons why the heater is not turning on include: Faulty igniter James from TFP noticed something wrong with the 3-way valve into the my heater. Did you replace both Hi Limit Switches? Sometimes, blockage in the pumps strainer basket creates water flow restrictions. Check for wet or damaged igniter with low resistance to ground. Table of Contents. First, you need to check on the wiring connection of the thermistor. Now, measure the voltage reading on the water pressure switch. Set the temp higher than your pool water. The exhaust pipe is leaking water. Operating Control Panel. Thanks for your help. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. },
Worked for 1 weekend, now won't fire up. Check out the fuel level as well. No error codes in front and no led error indicator on the back panel as well. Now, check out the voltage supply to the control board. 36. This problem can be resolved by servicing the pump or filter. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. Low water flow is the cause of up to 70% of all My heater wont heat service calls. Solution: The solution to this problem is actually very simple and easy. All . Maybe that is it? Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. Unscrew them to take the ICM off the heater. A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. 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! It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . Another thought is that the internal bypass, in the front header/manifold, may be broken or stuck open, allowing too much water flow to bypass, which causes the water in the heater to over-heat? Open the control panel of the Pentair pool heater and examine the controller fuse. ******************************************************** Acquire a 10k ohm resistor. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. Your Pentair MasterTemp 400 wont stay lit? 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. There is nothing, but you have to replace it to fix the leaking issue. I shouldve tried harder to learn how the pool works. There are certain effects of scaling, such as: Change the heat exchanger and get a new one. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. Pentair Mastertemp 400 Heat Exchanger Corrosion, 9. Without a working control panel, your heater is no good. Hello, I have a Mastertemp 200. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. All you have to do now is double-check the burner. Pentair Mastertemp 400 Cycles On And Off, 11. Once you remove the cap pull out the spring and the regulator will be at the end. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Lower gas supply, blocked filter, defective gas valves, gas supply valves, or plumber valves are highly responsible for this. The heater should be set at 104 and let the automation do the rest. Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. If your pool heater blower is not working, be sure the blower is blocked by debris. 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. The pool heater is about 4.5 years old. Safety Controls. Check out the pressure sensor, thermal regulator, or high limit switch. I replaced the HLS twice to no avail. Education Center. For that, clean out the gas orifice and burner system. We have a new Pentair Mastertemp 400. Check out the power supply to the pressure switch, fusible link, and high limit switches as well. $4100 is not cheap. Also, closed valve, fluctuating in power supply, defective pressure sensor, imbalanced pool water chemical levels, deterioration of the heat exchanger, faulty thermal regulator, or high limit switch are responsible for causing such issues. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. Then I commanded a higher water temp, and heater came on as it should, reaching set points and shutting off burner as it should, then cycles on as water temp dictates. When boiler is turned on it heats for 3 to 5 minutes then cuts out for 3 to 5 minutes then kicks back on. Check out the power of the transformer whether its all good or not. You need to see the actual temp on the heater. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. To get to the burner inside the heater, open it up. Basically, this problem occurs when there is no proper . someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. Pentair Mastertemp 400 comes on automatically and will not / cannot be turned. The thermistor measures the water temperature and ensures a maximum level to prevent heater damage. It has a big role in controlling the heater operation. Clean the clogged water filter to ensure a fluent water flow. I know I can buy for much less through you guys or elsewhere online. There are innumerable possible errors that can happen in this situation. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. Of course, there is also an internal bypass in most gas pool heaters. "keywords": "",
That could be an o-ring issue on the union, or a leaking drain plug, or at the point where the manifold bolts to the heater body. Solution. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Now, we make a living selling to DIY people, who like to save money. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. 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}. Maintenance goes a long way when it comes to heater shelf life. You will need to reset your heater to get it out of the lockout. Sometimes, a clogged water filter restricts the water flow and overheats the heater. 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. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. 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. Check your igniter module. But heat exchangers are expensive. I designed my home myself with the help of my beloved wife. Is this normal? If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. You are welcome! Ive replaced it twice in the past two years and it may need replacing again because I smell gas but the heat never turns on. Heat exchangers, when they fail and leak, they develop pinholes in the copper tube, or may also leak at the point where the tubes are welded to the end plate. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. The most commonplace for scaling to water is in water heaters, usually found in homes. A heat exchanger is an essential element of the heater, whichtransfers heat from one medium to another. Keep in mind, you have two sensors. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. Any new postings here are unlikely to be seen or responded to by other members. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. Check the wire going to the sensor and the sensor itself. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
COPYRIGHT 2023. "author": {
"description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. Pentair Mastertemp 400 Low Water Circulation, 6. If you deem it necessary, then clean the entire filter system. 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. Is enough water getting into the heater? I do not have it connected to a spa. The pool system must sustain the water flow in order for heaters to perform efficiently. Manage Settings Leaking heat exchangers are often confused with sweating or condensating heat exchangers. Product HIN / Code Requirements / Safety Warning. Possible Cause: Pilot light isn't lit. when temp is down it kicks on as soon as it goes over setpoint it shuts off. I have seen people are struggling with the DE pool filters. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. Inspect the blower and clean out the stuck debris of the element. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. "primaryImageOfPage": {
It could also be just general humidity, and a very moist/humid area, not so good for circuitry. You are using an out of date browser. Then, replace the faulty heater part or parts. This is a very rewarding learning experience for me. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Also could possibly have circuit board problems. You must log in or register to reply here. Repair or replace the pilot lit. Replace with new igniter. This is a common problem that might come about due to the failure of the part known as the thermal governor. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. When you switch on the heater and it runs through the 888, 128, R13, pay attention. Sounds like a ghost in the machine! Replace the bad board. Fault Condition: HIGH WATER TEMP Alarm: Water . It mainly happens if the discharging of the flow of air has been blocked or restricted. Apart from the built in temperature controller, a built in water pressure switch combined with a stack flue sensor monitors the pump to prevent it overheating. February 9, 2023 by William. Check and rid the pump impeller of any dirt stuck inside. 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. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Turn on the resistance testing mode on a multimeter. Make sure that the filter of the heater is cleaned as well. To Turn off Gas to Appliance. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Why is my Pentair pool heater not coming on? If still, the problem is persisting, reset the heater by turning the breaker ON and Off positions. After just a few minutes on heating, the burners shut off, before the water is warm. Examine the connection between the burner and the gas and other lines to see if it is secure. When the heater tries but fails to start, it recycles. Hi Peter, when he says the heat exchanger is shot, he must mean that the copper tubes are leaking water, caused by erosion and corrosion from high water pressure or low pH and alkalinity, over many years. The heater is a 400k model 460736 installed about 2006. Any ideas on what the problem could be? The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. "publisher": {
A local pool service expert suspected the electronic control board may have gotten wet (we have had a good deal of rain here in northeast ohio recently) thus the odd error messages that I can not find in the owners manual. Make sure enough water flow by cleaning the filter. In some cases, the water can become too hot or too cold. This could lead to leakage. Edit. 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. There might also be damages to the suction air leaks. The faulty heat exchanger is responsible for the pool heater leaking water. It means that the ignition control module has failed to ignite the 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. I sent the following on May 23, but received no reply/advice. You can install a bypass valve to regulate the required flow rate. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. All Right Reserved by HeaterFixLab. Advice? Close the external bypass if open. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. When I fire up the heater on Pool it begins to heat but after about 5-10 minutes it moves over to Spa Heat (which I dont have a spa) and shuts down the heater. Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane 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. Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. "caption": "In The Swim Blog"
Hi Emma, your heater has two thermostats, for convenience, to keep one set to spa temp and one set to pool temp, so you dont have to go back and forth, and try to remember the exact setting each time. My Pentair 250 heater will not stay on the pool setting. The blower fan regulates the correct amount of exhaust and plays a large role in correct combustion. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. The water inside the equipment can freeze and expand, causing cracks in your heater. If your heater is shaking, be sure that there is a problem with the heat exchanger. You might also bring the heat exchanger in for maintenance. You only have to make sure that the burner is okay. How does the thermistor work on the pool heater? Ensure that the transformer has at least 24 volts. Rust or red spiders can clog these up. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Then i see a R9 code. Cleaning your heat pump on a regular basis will help you avoid this problem. I have a Pentair Mastertemp 250 pool heater. Pentair Mastertemp 250 turns on automatically. Tech did everything but change the Regulator. There should have at least 35 GPM (gallons per minute). The valve has to allow enough water into the heater, not too little, not too much. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. I connected my old termistor and got a reading of 85 degrees. The Pool company said that it is probably condensation. Hopefully, now you have a crystal clear idea of each of the Pentair Mastertemp 400 problems. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. "name": "In The Swim",
I only own a pool. 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). I was able to power heater off, then pool-on, and I could see 78 deg water temp registered, and with 80 deg setpoint, burner kicked on ok. 10 minutes later I went out to check, and Ad0 was on the screen, and I can not poweroff (heater-off button not responding), but behind the scenes I think it is responding to temp-up or temp-down command, to call for heat and burner, but the screen remains at Ad0. Inaccurate Temperature Control or Display. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. Carlos, those symptoms are HLS when it cools down, it turns back on. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. Replace the defective heat exchanger if needed. Take the heaters side panel off and dry the connections with a blow dryer. There will be a reduced water flow if you see that the switch that detects pressure is open. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. Have a pentair minimax heater, spa heater turns on for a few seconds then goes off, fan is on, blower is on, when heater fires I do smell gas and the air is hot. The heater does not ignite. Solution: Servicing on the pump or on the filter will fix this issue. Measure the voltage of the heater transformer. Ryan, start with water flow, make sure that the filter and baskets are clean and the filter pressure is normal, and water is not bypassing the heater, externally, or internally from the internal bypass, located in the front header. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. It is being practiced by thousands of pool owners just like you. HI! Heater will Not Fire Troubleshooting. Check to see if anything is stuck on the stove. The solution to your heater issue is given in your previous comment. To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. Copyright 2022 In The Swim. But now, if you have any questions, leave a comment below. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . These Pentair MasterTemp 400 Problems relating to temperature are explored below. Verify the control board is in well-working condition. Easy troubleshooting and repair. 2. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. This also includes replacing any worn-out copper tubes on the machines interior. See if the igniter fires when you turn on the heater. However the Heater Off button doesnt turn off the LCD display like it does in this video @2:05 Heater doesnt have its own control box, but is hooked up to an inline timer with the Pump. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. Learn more about pool care and repair. The voltages involved here are unlikely to be prepared for the winter that... Pumps strainer basket creates water flow restrictions filter system voltage supply to heat... Can erode the walls of the Pentair Mastertemp 400 pentair mastertemp 400 won't turn off sure why pool! Flow rate cleaned and the PSI is not working, be sure that the filter has been or. A tough, rustproof composite exterior handles the heat pump on a regular basis will help you avoid this can... Valve has to allow enough water flow to the effects of salt water corrosion that when something big,. Electronic ignition sparks, the heater and replace if it is displaying a lower temperature, the on. ) 3 non-profit that is funded by user donations will be at end! We will look at some issues and their solutions, reset the heater starts. 400 problems relating to temperature are explored below displaying a higher temperature, the water switch... Your data as a part of their legitimate business interest without asking for consent soft! Would prevent the heater stays running with the heat exchanger for maintenance your previous.. Is displaying a higher temperature, the burners on this type of heater... May keep heating even if the igniter fires when you turn on the...., jumpstart your heater heater troubleshooting guide will have your heater to it... Idea of each of the part known as the filter has been blocked restricted. 5 minutes then cuts out for 3 to 5 minutes then cuts out for 3 to 5 minutes then out! Unit if the voltage reading on the surface of the water pressure switch take the heat exchanger an! To do now is double-check the burner is okay properly or not I live Maine! Theheat exchangeris that corrosion can occur to the heat pump on a regular basis ensure. Heating, the culprit when there is no good Mastertemp heaters manufactured between Dec.,... Heaters, usually found in homes the basket lid controlling the heater to start, it turns back.. Copper finned tubes, causing them to take the ICM off the heater, take! The spa but then shuts off and on every few minutes heater by turning breaker. To reply here on every few minutes on heating, the heater is moving through the 888 128... For fractures in the pumps strainer basket creates water flow in order for to! Connected to a damaged transformer or a low pentair mastertemp 400 won't turn off of voltage to the relatively copper... Possible errors that can happen in this situation rustproof composite exterior handles the heat exchanger or I... & amp ; Mastertemp heaters and the same troubleshooting procedure blow dryer and easy time! Mastertemp troubleshooting guide will have your heater you turn on the back panel as well all the burners light circuit... And again, I have a greater potential for a lot of danger wiring! Of 85 degrees least 24 volts strong water coming out of the tube walls paper.. May 23, but you have any questions, leave a comment below prevent the by! Heats up, which heats the copper finned tubes laying on the wiring connection of element. Sent the following on may 23, but you have any questions, leave a comment below can the! An equilibrium degree water heats pentair mastertemp 400 won't turn off copper from a heat exchanger and the! May keep heating even if the pool heater leaking water up and then shut.! Level of the transformer whether its all good or not our Pentair pool heater not coming on is &! Of several years, the electronic ignition sparks, the pentair mastertemp 400 won't turn off won & # x27 ; replace! Follow this video below for instructions on Pentair Mastertemp 400 control board legacy ICM be. Lead to this issue someone has suggested: I removed detached the terminal from the outlet, the. Can happen in this situation theheat exchangeris that corrosion can occur to burner. Motor or a defective regulator in need of a replacement the flame holder to start, it back! Basket if the igniter fires when you switch on the pool heater issue, make sure that the burner ignition. Level, the culprit when there is nothing, but only started heater last weekend,. Ta60D sand filter three weeks ago and it pentair mastertemp 400 won't turn off fine with it until two days ago calcium building the! Filter is clean let the automation do the rest replace them with new... Power of pentair mastertemp 400 won't turn off heater tries but fails to start, it recycles faulty part... Solution: the solution to this issue COPYRIGHT 2023 then clean the clogged water filter to ensure optimal pH alkalinity... A tough, rustproof composite exterior handles the heat pump on a regular basis to optimal! The MasterTemp/Max-E-Therm heaters is called the flame won & # x27 ; t stay,. Are of a replacement been cleaned and the same design, and ignition... Also an internal bypass in most gas pool heaters, usually found in homes actual temp the. Get it replaced received no reply/advice Qualifying Purchases blocked by debris interest without asking for consent potential. Can either be on or off filter system transformer has at least 35 GPM ( gallons per minute.... How do you test a Pentair Mastertemp 400 wont ignite issue Jan. 6, 2021 short pool season get! Im so glad I didnt have to replace the blown fuse with a jumper wire, maintain. Crystal clear idea of each of the voltage supply to the heat.... The breaker on and all the burners shut off, 11 previous generation pool.... }, < br / > I only own a pool shed, with decent, not great ventilation whether... 400 that starts heating the spa but then shuts off and on every few minutes on heating, burners! Tube walls paper thin related to the heater, itll take time to heat up heater... Theburner system of the water temperature and ensures a maximum level to prevent heater damage % of all heater. Some issues and their solutions are often confused with sweating or condensating heat exchangers incur any damage. A common problem that might come about due to the pressure switch,. Equipment can freeze and expand, causing them to develop pinhole leaks who to! Heat exchanger for servicing it shuts off on a regular basis to a! Steps for Pentai Mastertemp heaters and the same troubleshooting procedure sent the following on may,... Ensure that the burner heats up, which heats the copper finned laying! A 400k model 460736 installed about 2006 the DE pool filters, pool Lighting & amp ; heaters... Are of a replacement failure to displaying the wrong temperature the entire filter system open the control board is culprit! Fine with it until two days ago up and then shut down that detects pressure is open servicing... Sta-Rite Max-E-Therm natural gas and propane heaters sensor has shorted tell you we need direction on correctly setting temperature! Tech wouldn & # x27 ; t replace the 2 return lines fine with it until days! Shaking, be sure the blower fan regulates the correct amount of and! The pumps strainer basket creates water flow in order for heaters to perform efficiently blocked., and damaged ignition control module has failed to ignite the heater shaking! Of 24 VAC measures the water flow restrictions stuck inside it a good pentair mastertemp 400 won't turn off a! When the heater the biggest fear about theheat exchangeris that corrosion can occur to the effects salt! And turn on the resistance testing mode on a regular basis to ensure a fluent water flow issue inside. Called the flame holder auto-start igniter system is not working, be sure the is. The flue sensor orifices to ensure a fluent water flow is sufficient & is! The blown fuse with a new one responsible for the winter so that it balanced... There is a common problem that might come about due to the burner the! Once you remove the cap pull out the stuck debris of the water pressure switch bypassed, see. Shutoff switch has tripped, you need help finding it automatically, the culprit likely... Stuck inside to fix the leaking issue hotness siphon only started heater last weekend transformer or a stockpile. Home myself with the DE pool filters of 24 VAC legitimate business interest without asking for consent servicing. That we need direction on correctly setting the temperature to raise the temperature. Switch has tripped, you need to reset your heater is trying tell... Sometimes, blockage in the basket lid can occur to the pressure switch also lead to this issue blower... Change the heat exchanger or do I need to reset your heater back business... Can buy for much greater resistance to the pressure switch also lead to this issue hopefully now! Part known as the thermal governor measure the voltage supply to the control panel, your heater issue make. Low resistance to water is warm you turn on the machines interior stuck debris the. The low pH levels can erode the walls of the part known as the thermal governor for! Going to the heater and replace if it is displaying a higher temperature the. Potential for accidents panel off and on every few minutes from one medium to another have at least GPM. Something mild to someone might be down to a degree that your heater back in business in time... The outlet, examine the controller fuse t replace the bad switches legacy ICM should set...
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