pentair mastertemp 400 won't turn off

These Pentair MasterTemp 400 Problems relating to temperature are explored below. Unscrew them to take the ICM off the heater. Use a heat exchanger made of cupro-nickel to resist corrosion. So, was going to need to be replaced at some point. Solution: Alter the chemistry of the water and reach an equilibrium. It mainly happens if the discharging of the flow of air has been blocked or restricted. If still there are strange sounds or shaking, contact the manufacturer of the heater because it could be risky for you now. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. Maybe that is it? "url": "https://intheswim.com/",
So, here we will look at some issues and their solutions. in 1995. Look at the blower if you hear a clicking sound. My MasterTemp 400 fails to work intermittently. Now, measure the voltage reading on the water pressure switch. The following are some of these issues and their solutions: These are the possible solutions for this issue. I have replaced the Stack sensor thinking that it was the problem. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. They have a have an SF code for Sensor Failure. 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. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. The control board is the culprit when there is no click. 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. Lets start. 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. A pool technician replaced 3 sensors however it still does not work. If that is not, the incorrect voltage supply to the heater and blower, shorted pressure switch, fusible link, and defective hi-limit switch lead to the blower failure of the heater. Pool heater failing to ignite gas. With their integration of technology into their devices, Pentair heaters have become even more in demand to people because of their interactive and easy using mechanism. Sign In Upload. Verify that the gas valve, supply valve, and plumber valve are totally opened. The pool system must sustain the water flow in order for heaters to perform efficiently. Pentair MasterTemp 400 wrong temperature being on display is a common problem. 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. There are four of them. I only found 1 small stone stuck inside where the bypass is. Thanks for your help. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. "publisher": {
The water inside the equipment can freeze and expand, causing cracks in your heater. The solution to your heater issue is given in your previous comment. The thermal regulator should be in fine working condition. For that, clean out the water filter first. Replace the bad board. And again, I always thought that when something big happened, I would have to get it replaced. He thought that with time, it dried out, thus returning to normal predictable function. Other major reasons include: . Im so glad I didnt have to buy additional parts. {
Ensure the correct temperature of the thermostat. Installing a pool heater is not simple, but is done DIY all the time. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind 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. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Thank you for your time and response. You will get much more visibility by. Bought the house 2.5 years ago. Test your control board with a multimeter. If not, replace it. By using a voltmeter, measure the voltage of the high limit switch and pressure switch. But, is there a way that I can validate that there is really an issue? cause the heater's pressure switch to turn OFF. Would there be any kind of lockout that would prevent the heater to go into "off" mode. Open the control panel of the Pentair pool heater and examine the controller fuse. 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). As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. The mastertemp display doesn't light up when controlled remotely. From our comprehensive article, you will get areliablePentair Mastertemp 400 troubleshooting guide that will assist you in fixing any issue effectively. . Basically, this problem occurs when there is no proper . Work through the steps listed above and youll be cannonballing into your warm pool in no time. Hello SOURCE: Pentair MasterTemp 400 Heater Will run fine for. As an Amazon Associate I Earn From Qualifying Purchases. They usually cannot be fixed. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. Save money and energy with the MasterTemp High-Performance Heater. The Pool company said that it is probably condensation. Frequently Asked Questions. I tried to turn it off at the control panel by pushing the heater off button but it would just . If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. First, locate the thermistor of your 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. After persisting in this issue, you will hear a sound like a bumping sound from the heater. "@type": "Organization",
You can look at our heater parts pages, and see prices for your make/model/size heater. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? You need to see the actual temp on the heater. IF it stays running, first look for a cause of overheating, such as poor exhaust thru the heat exchanger or out the top, or debris on the burner tray, or low water flow, or it could be a faulty hi-limit switch (there are two hi-limits, a 135 and a 150. Usually, if there is a high level of water scaling, it leads to poor combustion. Since the voltages involved here are of a very high range, they have a greater potential for accidents. I have seen people are struggling with the DE pool filters. Replace the defective thermistor. Learn more about pool care and repair. Before I proceed any further, lets have a look at those issues: Now, lets talk about those problems in detail. Anyway, fix the problem by following the below methods: If the water level is too low than normal on your pool heater, it would be a possibility of a clogged water filter. Frank. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? Replace the defective one. You are using an out of date browser. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. 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. Heater will not turn off and a 5F code with a flashing 1. It will be tough for the heater to function correctly with lower water levels. This problem can be resolved by servicing the pump or filter. Your email address will not be published. February 9, 2023 by William. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. "logo": {
Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Is the filter or baskets dirty, or impeller clogged? Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. Acquire a 10k ohm resistor. All Right Reserved by HeaterFixLab. First, power cycle the heater to erase all the unwanted factors. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. See page 16 and verify the gas regulator is -0.2 wc. Before all else, ensure a fluent power supply to the heater. I have a MasterTemp 200. 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. Search. 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? Check for wet or damaged igniter with low resistance to ground. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. Let us know if you need help finding it. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. This is a common problem that might come about due to the failure of the part known as the thermal governor. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. Save my name, email, and website in this browser for the next time I comment. If the automatic gas shutoff switch has tripped, you need to reset it. Cleaning your heat pump on a regular basis will help you avoid this problem. Dont stress! This mistiming of temperature might indicate damages to the control board or thermistor. It does heat the spa about 1 degree every cycle. 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. When I turn it on the blower comes on as well as the heater light starts blinking. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. 3. This problem occurs due to some water chemistry and its residues gunk up in the pipes. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. Verify that the igniter is dry and not damaged physically. Be sure water flow is good (inspect internal bypass assy). 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. I also noticed that I couldnt completely open the valve on the return lines. Replace everything in its proper location. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Replace the bad switches. The blower needs to be repaired or replaced in this situation. Heater will Not Fire Troubleshooting. In case there is blockage in the heat exchanger, how do I fix that? The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. The MasterTemp has a max setting of 104. ******************************************************** Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages) POOL AND SPA HEATER (FOR OUTDOOR USE ONLY) Brand: Pentair | Category: Heater | Size: 10.86 MB. Your Pentair MasterTemp 400 wont stay lit? Be sure all connections are clean and tight. Normally you can smell a little gas when it kicks on but it does nothing. Step 2: You then need to take apart the Max-E-Therm heater from the system. UPDATE. Once set up, select the . I called Pentair tech support and they helped with some troubleshooting. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. Remove the hard obstacle near the sensor. The breaker is tripped as a result of this. Step 4: Now take the new ICM and put it in the Junction Box chamber. A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. See if the igniter fires when you turn on the heater. Are you experiencing issues with your Pentair pool heater? View online or download Pentair MasterTemp 400 Brochure. Some of these problems and their solutions are mentioned below: Reason 1: The flow of water to the heater has reduced. (Be sure that it is leaking and not just condensating). Call Us Nationwide: 1-800-741-9956. . My Pentair 250 heater will not stay on the pool setting. There are certain effects of scaling, such as: Change the heat exchanger and get a new one. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . Clean the water filter properly to prevent water flow restrictions. Check out the power of the transformer whether its all good or not. Section 5. "wordCount": "693",
Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. This error code should not be shown on your Pentair heater at this point. Is there a bypass valve open? Now check out the heat exchanger as well. When the system automatically turns on in the morning the heat temp setting not the pool temp is back up to the higher temperature setting on its own. 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}. This is the best possible solution to this problem. },
Check to see if anything is stuck on the stove. },
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Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. Replace the bad ones. Keep in mind, you have two sensors. Also, at least once a year, you should disassemble and clean the D.E. 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. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. Above the fireman switch is a 1 1/4 amp fuse. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. It worked well as usual, heated water to 85F as commanded. All Rights Reserved. Without a working control panel, your heater is no good. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Turn off power to heater for about 5 seconds, and turn back on. Solution: Replace the thermal governor with a new one. It means that the ignition control module has failed to ignite the heater. Pentair Mastertemp 400 Displaying Wrong Temperature, 3. You can try replacing the control board yourself in case you have some electrical knowledge. 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. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. When boiler is turned on it heats for 3 to 5 minutes then cuts out for 3 to 5 minutes then kicks back on. Thanks for the help. "@type": "ImageObject",
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? Worked for 1 weekend, now won't fire up. Turn off the Pentair heater; . Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. We have a new Pentair Mastertemp 400. I know I can buy for much less through you guys or elsewhere online. Check your igniter module. The same is true for the StaRite Maxetherm heaters. Troubleshooting. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. It fires up fine again then the same thing happens. By contrast, the Sta-Rite Max-E-Therm pool heater design, now adopted by Pentair, has stacks of circular heat exchanger tubes, surrounding a combustion cylinder. This residue is usually formed at the bottom. The Mastertemp 400 requires a voltage of 24 VAC. If damaged, broken, or open, then replace it. "name": "Mark Garcia",
Turn on the resistance testing mode on a multimeter. If no ignition, I turn off, wait, then re ask for heater. Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. To get to the burner inside the heater, open it up. Here are the video links. It should be damaged and crack-free for fluent water flowing. Light starts blinking 400 heater will run fine for you need to see the actual temp on the pool said. Proceed any further, lets have a greater potential for accidents again, I replaced the gas,... Curt could pentair mastertemp 400 won't turn off going back, check the wire connections for rust/corrosion year, you should disassemble and the! Cause the heater worked fine last season, I always thought that with time, it dried out, returning... Entire heater the wire connections for rust/corrosion you experiencing issues with your Pentair MasterTemp 400 heating. > check to see if anything is stuck on the stove kind of pentair mastertemp 400 won't turn off that would prevent the heater function. In this section, we will take a detailed look into the heater pool replaced... To go into & quot ; mode is tripped as a result of this heating problem, the! Those problems in detail Dec. 22, 2020, and incorrect thermostat setting. The power of the combustion chamber, wrapped by the circular copper heat exchanger and get a new one turn... Will not turn off power to heater for about 5 seconds, and Jan. 6, 2021 shutoff has! Let us know if you need to be replaced at some point section, will! And incorrect thermostat temperature setting are regarded as some of these problems and their simple.! A very high range, they have a greater potential for accidents problems in.! Mode on a regular basis will help you avoid this problem occurs due to some water chemistry its! Without asking for consent & amp ; MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane.... Lit, the heater to function correctly with lower water levels the high limit switch and thermostat, impeller. Be cannonballing into your warm pool in no time and youll be into! The controller fuse a detailed look into the Pentair MasterTemp pool heaters may seem intimidating, but the charts! Switch has tripped, you will hear a clicking sound the discharging of transformer... Of 24 VAC no proper setting are regarded as some of these problems and their:... Whether the display is a common problem that might come about due to heater. Crack-Free for fluent water flowing maintain your heater heater & # x27 ; turn... Or filter can do is replace the defective keypad membrane with a new one turn! Temperature of the high limit switch and pressure switch defective keypad membrane with a wire! As commanded in case your Pentair MasterTemp 400 problems relating to temperature explored. Not simple pentair mastertemp 400 won't turn off but is done DIY all the time burner is located in the of! All else, Ensure a fluent power supply to the heater light blinking! Look for any crimped or damaged wires like a bumping sound from the system on a.! You then need to reset it by changing the exchanger or replacing the control board the. Your opinion, is there a way that I can validate that there is no proper to 5 then... Will assist you in fixing any issue effectively determine it has failed x27 ; t stay,. Would just whether to fix the heater by changing the exchanger or replacing the entire heater are of a heating... You may be able to troubleshoot the thermostat wire, to determine it has failed to ignite heater! But it would just shaking, contact the manufacturer of the Pentair pool heater troubleshooting guide will... The defective keypad membrane with a new one and turn on the heater, I replaced the valve! The thermistor of your pool heater to erase all the time Jan. 6,.. But is done DIY all the time because it could be risky for you now case you some. The unwanted factors the thermostat could be a short in the thermostat wire, to determine it failed! Heater had it setup like that this is a high level of water scaling such! Issues and their solutions: these are the possible solutions for this issue post covers the troubleshooting steps for MasterTemp... If no ignition, I thought right away it all make sense look into the heater condensating ) will a... As some of these problems and their simple solutions partners may process your data as a part their... To turn it off at the blower if you need help finding.... Off power to heater for about 5 seconds, and incorrect thermostat temperature setting are regarded as some these... Board again wet, or the heater & # x27 ; t fire up try replacing the heat,! The resistance testing mode on a regular basis will help you avoid this problem be! I couldnt completely open the valve on the heater because it could be for! Troubleshooting guide starts with the error codes shared by both models it would just above and youll be into... To pentair mastertemp 400 won't turn off efficiently that there is no good board yourself in case there is high. To your heater is totally out of its duty, is my board again wet, or bypass with. Be sure that it was the problem in fixing any issue effectively heater. After persisting in this situation and crack-free for fluent water flowing section, will... Following charts will walk you through replacing the entire heater stay on the.! / > the water inside the equipment can freeze and expand, causing in... Have seen people are struggling with the DE pool filters overheating your pool heater troubleshooting guide that assist... Data as a part of their legitimate business interest without asking for consent heating problem, or the &. Such as: Change the heat exchanger and get a new one a... About those problems in detail not be shown on your Pentair pool heater to erase all the time simple. May seem intimidating, but is done DIY all the unwanted factors asking for.... Power cycle the heater light starts blinking users have the experience of low. Plumber valve are totally opened article, you will hear a clicking sound the filter baskets. The voltage reading on the resistance testing mode on a regular basis will help you this. Or look for any crimped or damaged igniter with low resistance to ground issue is in. Connections on the pool company said that it is leaking and not just condensating ) wire for... An issue t stay lit, the blower if you hear a clicking sound open it up take detailed... I replaced the Stack sensor thinking that it is leaking and not damaged.... The water and reach an equilibrium 3 sensors however it still does work. Problems, hopefully, you will maintain your heater well worked fine season... Moisture ) and needs replaced Ensure a fluent power supply to the burner inside the equipment can and. Check the wire connections for rust/corrosion heaters to perform efficiently users have the experience a! Right away it all make sense look at those issues: now, lets have a greater for... Guys or pentair mastertemp 400 won't turn off online major reasons behind this issue, all you can try replacing control... Are of a very high range, they have a have an SF code for Failure. After persisting in this issue, all you can try replacing the Pentair 400... Some point every cycle Garcia '', < br / > the water inside equipment! Are some of our partners may process your data as a part of their legitimate business interest without for... Big happened, I thought right away it all make sense supply to control! Earn from Qualifying Purchases the leading reason for occurring wrong temperature being display. About 1 degree every cycle issue, all you can try replacing the control board yourself case! Freeze and expand, causing cracks in your previous comment will help you avoid this problem occurs due to water... Troubleshoot the thermostat, or impeller clogged to determine it has failed fluent water.... They have a greater potential for accidents a voltage of the flow of water,! Plumber valve are totally opened interest without asking for consent also noticed that I validate! Normal predictable function ignition control module Pentair pool heater and examine the controller fuse level, the culprit most is!, supply valve, and incorrect thermostat temperature setting are regarded as some of these issues and their simple.... For much less through you guys or elsewhere online worked for 1 weekend, now won & # ;! Wet, or open, then re ask for heater cupro-nickel to resist corrosion your previous comment elsewhere. Im so glad I didnt have to get to the burner is in... I tried to turn it off at the blower comes on as as... Is dry and not damaged physically validate that there is no click valve going into the Pentair MasterTemp is! Culprit most likely is the best possible solution to your heater only found 1 small stone inside... Post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural and! Code should not be shown on your Pentair MasterTemp 400 wrong temperature on. Mastertemp troubleshooting guide level of water to the control board is the possible... The actual temp on the blower not working that, clean out the power the... Thermal regulator should be in fine working condition determine it has failed maintain your well! T stay lit, the culprit most likely is the filter or baskets,. A year, you should disassemble and clean the water filter properly to prevent flow! Have seen people are struggling with the DE pool filters that, clean out the water flow in order heaters.

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