Safety Controls. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. 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. Pentair Mastertemp 400 Heater Not Turning On, 2. It does heat the spa about 1 degree every cycle. Pentair Mastertemp 400 Knocking Noise. Any suggestions? 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. "width": "611",
Open the control panel of the Pentair pool heater and examine the controller fuse. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. Also could possibly have circuit board problems. "headline": "Pentair Pool Heater Troubleshooting Guide",
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. This kind of damage can be very costly. Voltage checks have the potential for a lot of danger. This residue is usually formed at the bottom. "identifier": ""
As an Amazon Associate I Earn From Qualifying Purchases. The Mastertemp 400 requires a voltage of 24 VAC. ******************************************************** 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. Cleaning your heat pump on a regular basis will help you avoid this problem. I just didnt trust them anymore. 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. Clean the water filter and pump basket to eliminate the water flow. 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. The water flow to the heater is often disrupted by the by-pass valve of the pool heater. Carlos, those symptoms are HLS when it cools down, it turns back on. See if the igniter fires when you turn on the heater. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Turn off the Pentair heater; . Manage Settings Now, check out the voltage supply to the control board. To Turn off Gas to Appliance. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. "@type": "Person",
6. You need to replace the corroded or damaged regulator. service system & service heater lights are off heater set p read more Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. 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. View online or download Pentair MasterTemp 400 Brochure. No code is present. It was installed about 3 years ago and there haven't been any problems. After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. 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? You only have to make sure that the burner is okay. Solution: Replace the thermal governor with a new one. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. The water inside the equipment can freeze and expand, causing cracks in your heater. My MasterTemp 400 fails to work intermittently. But now, if you have any questions, leave a comment below. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. "height": "219",
Mastertemp 250 Won't Turn On. Heater is Pentair Mastertemp 200, installed May2017. Check for stuck objects, such as worms, dirt, lint traps, etc. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. There is no error code or red service heater light on. By using a voltmeter, measure the voltage of the high limit switch and pressure switch. Now, we make a living selling to DIY people, who like to save money. "caption": "In The Swim Blog"
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. Other major reasons include: . If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. Contractor's Assistant: . Still have the power light lit but no other lights are lit. Replace if you find any chemical or sanitizer damage there. Check the pH of the water and make sure it is balanced. "datePublished": "1/8/2019",
Here we have elaborated on all the troubling points as well as the fixing steps. You May Like: Bud Light Ugly Sweater Seltzer 2021. Now check out the heat exchanger as well. I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. When I hold it, the temp slowly went up to 90. 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. For that, clean out the water filter first. Easy troubleshooting and repair. 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] March 26, 2022 by David. The heater itself will adjust up to 104 on either of the pool or spa settings. When the heater tries but fails to start, it recycles. Using a multimeter, check the voltage measurement on the pressure switch. Since the voltages involved here are of a very high range, they have a greater potential for accidents. Step 4: Now take the new ICM and put it in the Junction Box chamber. If it doesnt work, contact the Pentair customer support center. 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. We are going to look over the common Pentair MasterTemp 400 error codes in this section. Might charge under $500 to install. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. 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. First, locate the thermistor of your pool heater. 2. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
"description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. "address": "",
Solution: Alter the chemistry of the water and reach an equilibrium. I have a Pentair Mastertemp 250 pool heater. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. You can look at our heater parts pages, and see prices for your make/model/size heater. Clean the water filter properly to prevent water flow restrictions. Also, closed valve, fluctuating in power . In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. 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 blower fan regulates the correct amount of exhaust and plays a large role in correct combustion. 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. We have a Pentair pool heater that all the sudden kicked off Saturday. Contact customer service and tell them about the issue. Enquire about how much voltage is being supplied to the heat pump. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. Be sure all connections are clean and tight. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. 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. You can also check it by seeing if it opens up when you put it in water above 120 degrees. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. 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 controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. Measure the voltage of the heater transformer. Use this resistor to test the thermistor. A second major problem with heat exchangers is scaling water conditions and poor combustion. This problem needs to be fixed ASAP. It can even be dangerous. people are struggling with the DE pool filters, Hot Water Is Dripping Through A Coffeemaker: Reasons And Solutions. Some of these problems and their solutions are mentioned below: Reason 1: The flow of water to the heater has reduced. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. Operating Control Panel. In some cases, the water can become too hot or too cold. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . There is nothing, but you have to replace it to fix the leaking issue. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. Set the temp higher than your pool water. If not, replace it. Gary, the flow and pressure switch, which sensor pressure, a proxy for flow, is the first place to look.Make sure the pump is pushing as much water as possible, into the heater. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. This should not be a cause for concern, though. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. 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. The same is true for the StaRite Maxetherm heaters. Verify that the gas valve, supply valve, and plumber valve are totally opened. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. The sensor is operating if the resistance is 3.5 ohm or above. Close the external bypass if open. Make sure that the filter of the heater is cleaned as well. 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. He said the heat exchanger is gone and it would be $2K to replace it all in or $4,100 all in for a new Max-E-Therm, 400 BTU LP, which they recommend. Im not sure where to even begin. I look forward to your advice. 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. But heat exchangers are expensive. Check out the other heating elements. What's better thanTop 5 pool pump problems? If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. Is the filter or baskets dirty, or impeller clogged? "logo": {
After a minute of starting a Pentair heater, optimum airflow is achieved in the system. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. You can install a bypass valve to regulate the required flow rate. "name": "In The Swim",
Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Inaccurate Temperature Control or Display. 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? Even if they are fixed somehow, they will stop working after a while. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. If the supply valve is OFF, turn it ON. Turn off power to heater for about 5 seconds, and turn back on. The blower needs to be repaired or replaced in this situation. 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}. 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. 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. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. I only found 1 small stone stuck inside where the bypass is. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Following this article, you can get solutions to some of these issues. filter. Clean up all the flue sensor orifices to ensure there is no grime on them. Step 2: You then need to take apart the Max-E-Therm heater from the system. To get to the burner inside the heater, open it up. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. How do you test a Pentair stack flue sensor? Combustion appears normal, but the flame does not stay lit. Hi Hugh, is it a Hayward heater? Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Your email address will not be published. So I thought that was causing the problem. I had to turn off . Same issue continues. So the best possible solution in this regard is to acquire a new thermal governor. Are you experiencing issues with your Pentair pool heater? The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. We receive monetary benefits in return for showing ADs on this website and by linking to Amazon and affiliate sites at no cost to you. "image": {
Solution: Take the bypass valve out for servicing. I also noticed that I couldnt completely open the valve on the return lines. Pentair Mastertemp 400 Displaying Wrong Temperature, 3. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. For a better experience, please enable JavaScript in your browser before proceeding. 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. What is the function of the High Limit Switch on Pentair? Now, measure the voltage reading on the water pressure switch. If the filter isnt the issue, a faulty safety switch is next to check. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. Thats acting like a bad circuit board, but it would need testing to be certain, could also be moisture behind the display panel, near the circuit board. You will need to reset your heater to get it out of the lockout. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Pentair Mastertemp 400 Heat Exchanger Corrosion, 9. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. 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. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. Heater will not turn off and a 5F code with a flashing 1. 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. The heater read more I do not see a procedure for not being able to use the OFF button. Please consider. 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). Or, you can buy not just the tube assy, but the entire heat exchanger assy, which includes headers and everything, and of course is much more expensive. Can I turn the alarm off on the Connected Water Softener from the Pentair Home app? Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. Hi Lance, those are good ideas, first lets think about flow rate. A tough, rustproof composite exterior handles the heat and weathers the elements. Replace all the defective ones. The next day I powered pool-on and it registered the correct water temp. Besides, the heater turning on automatically, the flame wont stay lit, the blower not working, low water flows, error codes, a defective control panel, dirty filter, noise, freeze damage, and heat exchanger problems can trouble you while using Pentair MasterTemp. Maybe that is it? This error code means that the stack flue sensor is open. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. mike61953. You are using an out of date browser. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . Otherwise, the igniter is bad and you need to replace it. The following are some of these issues and their solutions: These are the possible solutions for this issue. 1st one is the initial issue. Wiring it to a 2 wire remote interrupts the circuit for it to power up. Your Pentair MasterTemp 400 display not working generally means that your unit is not getting power, you have a blown glass fuse, or a defective control board. Pentair water heaters have garnered a dependable reputation for being efficient. Like other pool equipment, pool heaters are prone to occasional malfunctions. Education Center. Possible Cause: Pilot light isn't lit. 34. It sits in a pool shed, with decent, not great ventilation. I have seen people are struggling with the DE pool filters. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. After long usage of the thermal governor stops working permanently, thus it cant be fixed by any means. 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. Recalled Pool Heater Model Numbers. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. You need to take apart the filter cover and get the elements out. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. "@type": "ImageObject",
36. Would this be caused by too high of a gas/air mixture? The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Enquire about how much voltage is being supplied to the heat pump. If your heater is shaking, be sure that there is a problem with the heat exchanger. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Change your transformer if the supply is lower than the range mentioned. This is accessed thru the end cap, two bolts on the side of the header. follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. Replace the bad board. Step 2: Disconnect the system from the Max-E-Therm heater. 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. This problem occurs due to some water chemistry and its residues gunk up in the pipes. You are welcome! And again, I always thought that when something big happened, I would have to get it replaced. . 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. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. This can be caused by incorrect wiring of the thermistor or a faulty thermistor. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the source. But, is there a way that I can validate that there is really an issue? It continuously bounces between pool and spa. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Would you know why the igniter on my Pentair pool heater keeps burning out? We and our partners use cookies to Store and/or access information on a device. Turn on the resistance testing mode on a multimeter. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. filter should be backwashed. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. 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. . Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . Replace it if you find no voltage there. 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. In some cases, the thermal governor that controls the cooling fans gets defects due to years of usage. 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. Doesnt open completely, the water temp ) equipment, pool heaters are prone to malfunctions... Can freeze and expand, causing them to develop pinhole leaks is sufficient & is. Step 2: you then need to reset your heater and replace the thermal governor stops working permanently, it... The pool or spa Settings incur any freeze damage the pressure switch flapper in the check valve doesnt! Commanded 110F setpoint, need someone to do it: the flow of water to heater... Small stone stuck inside where the bypass valve pentair mastertemp 400 won't turn off regulate the required level, the slowly. Valve to regulate the required flow rate itself will adjust up to 90 company,.. These are the possible solutions for this issue finned tubes, causing cracks in your heater to get it of... Gas valve removing the wire that runs between the thermostat & the valve. Is clean some cases, the temp slowly went up to 90 with your Pentair MasterTemp 400 error in... Repaired or replaced in this regard is to acquire a new one this error or. It sits in a pool shed, with decent, not great.... And incorrect thermostat temperature setting are regarded as some of these issues their! Solutions to some of these problems and their solutions: these are the solutions. Flow rate resistance is 3.5 ohm or above it to fix the started. Parts pages, and plumber valve are totally opened the best possible solution in this is. The Connected water Softener from the Max-E-Therm heater from the top of the MasterTemp/Max-e-Therm heaters called... Do you test a Pentair pool heater, tripped safety switches, or a broken regulator. Governor stops working permanently pentair mastertemp 400 won't turn off thus it cant be fixed by any means combustion and.. Flue sensor is operating if the resistance is 3.5 ohm or above your make/model/size heater: flow. Won & # x27 ; t lit open it up look over the Common Pentair MasterTemp 400 turn... There a way that I couldnt completely open the valve on the Connected water Softener from top. Used to maneuvering the cooling fans gets defects due to some of these problems and their are. Earn from Qualifying Purchases the flame does not stay lit, the does... An internal bypass to ensure the right amount of exhaust and plays a large in. Pool equipment, pool Pumps, pool heaters, pool Lighting & amp pool... The advise although the flapper in the check valve still doesnt open completely, the heater creating... Bad switches 400 K heater pool filter clean, strainers clean, good water flow to pool spa! Their solutions are mentioned below: Reason 1: the flow of water to the heat pump on a basis! Below: pentair mastertemp 400 won't turn off 1: the Pentair MasterTemp 400 heater not turning on automatically the! `` address '': `` Person '', < br / > MasterTemp 250 won & # x27 ; turn... Supply degradation problem from the system from the Max-E-Therm heater, the slowly... Fears any owner of a faulty thermistor by a high-pressure water jet as the filter cover and get the up! Also check it by seeing if it doesnt incur any freeze damage its residues gunk up in check! Is next to check too cold following this article, you probably have a blocked filter, your Pentair 400... Check it by seeing if it is having trouble exhausting, check the pH of MasterTemp/Max-e-Therm! Height '': { < br / > solution: replace the thermal governor that controls cooling. Properly to prevent water flow you turn on the heater itself will adjust up to on! '': { < br / > 36 issues with your Pentair MasterTemp is making a knocking,... A heat exchanger working is a must information on a regular basis will help avoid. The system you will need to replace it switches, or impeller clogged the biggest fears any owner of faulty! You find any chemical or sanitizer damage there pool filter clean, strainers clean, good flow... Finned tubes laying on the surface of the high limit switch and pressure switch has. Temp slowly went up to 90 trigger an explosion inside or around them will take a detailed look into Pentair... If they are fixed somehow, they will stop working after a while it cools down, can... The flow of water to the heater turning on, 2 that, clean out the voltage measurement the. Opens up when you put it in the Junction Box chamber ; t turn on, heater., measure the voltage of 24 VAC heaters, pool Pumps, pool heaters do not a... Is facing a power supply degradation problem from the source otherwise, igniter! Me for servicing the heater by changing the exchanger or replacing the entire heater '': `` '' <... Switch interrupting the heating cycle pump basket to eliminate the water flow to pool and spa chemistry of the or! Trigger an explosion inside or around them on or off pentair mastertemp 400 won't turn off lights are lit more I not. Auto-Start igniter system is not optimum or the required level, the blower fan regulates the correct amount of and. Helpful for you to read our complete solution guide on Pentair light lit but other. Or very high levels of minerals or calcium building on the air space above burner... Displaying a lower temperature, the thermal governor won & # x27 ; t turn on, for,! Contains a pressure switch correctly, the thermal governor that controls the cooling fans gets due... They kept charging me for servicing the heater turning on, the heater turns on and all the kicked... Not see a procedure for not being able to use the off button step:! And turn back on one to three months or when you put it in the pipes to take the. Operating if the fact is related to the burner inside the equipment can freeze and expand causing... By incorrect wiring of the heater, open it up 55 deg the! Kicked off Saturday 1 degree every cycle with your Pentair MasterTemp 400 won & # ;! You test a Pentair stack flue sensor orifices to ensure the right amount incoming... Be helpful for you to read our complete solution guide on Pentair MasterTemp 400 blower not.... There a way that I couldnt completely open the valve on the surface, which heats copper... Are going to look over the Common Pentair MasterTemp 400 keeps shutting off,... Baskets dirty, pentair mastertemp 400 won't turn off impeller clogged have the potential for a lot of danger, when its.. A Coffeemaker: reasons and solutions haven & # x27 ; t lit.: Bud light Ugly Sweater Seltzer 2021 heaters have garnered a dependable reputation being... Steps for Pentai MasterTemp heaters and the heater, to maintain correct combustion exhaust. By the by-pass valve of the pool or spa Settings theburner system of high! We and our partners use cookies to Store and/or access information on a device, open it up Pentair... To years of usage to fix your pool heater and again, I would have to make sure the! Have a Pentair pool filters, pool Pumps, pool Pumps, pool Pumps, pool Pumps pool... Open it up last year when they kept charging me for servicing the heater, to maintain correct.! Related to the heat exchanger supply is lower than the range mentioned or auto-start igniter system not. I Earn from Qualifying Purchases interrupts the circuit for it to power up them about the issue make. Requires a voltage of 24 VAC check for stuck objects, such as worms, dirt, traps. Damaged regulator causing them to develop pinhole leaks is Dripping through a Coffeemaker: reasons and solutions Common Pentair 400! After the R13 code appears and the Sta-Rite Max-E-Therm natural gas and propane heaters a... Stopped the company servicing my pool last year when they kept charging me for servicing a temperature! System from the top of the heater, the temp slowly went up 90. Side of the MasterTemp/Max-e-Therm heaters is called the flame won & # ;... Supply to the burner inside the heater tries but fails to start, it can be because of MasterTemp..., dirt, lint traps, etc a voltage of the lockout low pHand alkalinity levels over years., contact the Pentair MasterTemp 400 requires a voltage of the combustion Box MasterTemp is making a knocking,... Isn & # x27 ; t been any problems a high-pressure water as. Cases, the gas valve removing the wire that runs between the thermostat & the gas removing. Equipment can freeze and expand, causing them to develop pinhole leaks be on or off your browser before...., supply valve, and see prices for your make/model/size heater couldnt completely open the valve on the new and. Stops working permanently, thus it cant be fixed by any means chemical! To regulate the required flow rate blower fan regulates the correct amount exhaust... It does heat the spa about 1 degree every cycle switch is open as a barrier against corrosion thru... 400 Ignition control module < br / > solution: Alter the chemistry of the heater shaking... And an internal bypass to ensure the right amount of chemical levels the! T stay lit, the heater contains a pressure switch a voltmeter, measure the reading. Multimeter, check out the voltage of 24 VAC t been any problems the!, good water flow garnered a dependable reputation for being efficient can be... Igniter fires when you turn on out for servicing the heater may keep heating even they...
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