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. Articles and resources for swimming pool owners and DIYers. Possible Cause: Pilot light isn't lit. Hello , This is an inactive thread. Heater will not start. The hi-limit switches are also on the front header of the minimax, and likewise, can be jumped-out by following the wires to where they connect, and using a jumper across the terminals. Rust or red spiders can clog these up. For the heater to turn on and generate heat, all the safety switches have to be in the on position. See page 16 and verify the gas regulator is -0.2 wc. The heater is a 400k model 460736 installed about 2006. . Now, we make a living selling to DIY people, who like to save money. Remove the old thermal governor and replace it with a new one. Replace with new igniter. The accumulation of minerals on the surfaces of the pipes acts as a barrier against corrosion. Enquire concerning how much voltage is being provided to the hotness siphon. I designed my home myself with the help of my beloved wife. Dont stress! Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. Connect each multimeter prong to the terminals on the stack flue sensor. You must log in or register to reply here. "@type": "Organization",
First, check the condition of the temperature sensor whether its good or not. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. You may need to replace it. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. We manually turn up the temp to a warmer setting when we swim while the system is running. Solution. when temp is down it kicks on as soon as it goes over setpoint it shuts off. Section 5. If the temperature outside is chilly and the defrosting feature is not enabled, then enable the feature. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. 13 years ago. Thank you! If flow is not the issue, yes it could be the hi-limit switch (but not the thermal cut-off, because it wouldnt come on at all). For that, clean out the water filter first. Alternatively, the temperature display can sometimes be quite inaccurate. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. There are innumerable possible errors that can happen in this situation. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. The board may be fried, but do a complete power down, at the breaker, pull open the control panel, and inspect, clean the area, and look for signs of water intrusion. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. How does the thermistor work on the pool heater? Now, measure the voltage reading on the water pressure switch. A pool technician replaced 3 sensors however it still does not work. Check the wire going to the sensor and the sensor itself. It may not display this or other websites correctly. Sometimes the heat exchangers leak. When this fuse blows, the symptom is a heater that won't power up on the touch pad. Hi,e repl Other reasons why the heater is not turning on include: Faulty igniter 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? Kindly help. So, was going to need to be replaced at some point. 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. Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. Gentlemen, This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. Easy troubleshooting and repair. 2. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. The pipes going in and out of the heater need to be unplugged for good measure. Set the temp higher than your pool water. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. This is a very rewarding learning experience for me. "name": "In The Swim",
Defective Keypad Membrane. 38. I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. After a minute of starting a Pentair heater, optimum airflow is achieved in the system. Using a multimeter, check the voltage measurement on the pressure switch. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . Frank, I do concur with the pool tech, that this seems like a wet circuit board, but perhaps also a damaged circuit board at this point. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. 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. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. Solution: Alter the chemistry of the water and reach an equilibrium. Here we have elaborated on all the troubling points as well as the fixing steps. All Right Reserved by FIREPLACEHUBS. Check out the thermal regulator as well. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. "height": "219",
Verify that the gas valve, supply valve, and plumber valve are totally opened. mike61953. Description: This recall involves Pentair Water Pool and Spa StaRite and Mastertemp pool heaters sold in various styles and models with manufacturing dates between December 22, 2020 and January 6, 2021. I just didnt trust them anymore. Verify pressure tap between gas valve and blower inlet. I dont see my trouble addressed. "datePublished": "1/8/2019",
This mistiming of temperature might indicate damages to the control board or thermistor. Ensure that the transformer has at least 24 volts. To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. This is a common problem that might come about due to the failure of the part known as the thermal governor. If it does, you may have received a defective regulator in need of a replacement. The optimum level of the voltage supply is between 208 to 260 volts. The manufacturing date, along with model number, can be found on the serial number sticker on the heater. Sometimes, a clogged water filter restricts the water flow and overheats the heater. "identifier": ""
We will do our best to help. Hi Barbara, I call that cycling on and off, and that can be related to low water flow, and jumping out the pressure switch can tell you if flow is the problem, in the absence of flow error codes. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. Boiling in the heat exchanger can occur for a number of reasons. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . 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. 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}. My Pentair 250 heater will not stay on the pool setting. Its a fun combination of plumbing, wiring and gas. 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. 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 would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. I had to turn off . If it doesnt work, contact the Pentair customer support center. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. Consumers who have purchased one of these products can get in contact with Pentair by calling 800-831-7133 from 8 a.m. to 7:30 p.m. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Check out the internal and external bypass systems. You can try replacing the control board yourself in case you have some electrical knowledge. Any suggestions? you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. It worked well as usual, heated water to 85F as commanded. Why Fiberglass Windows Are Not Popular And Are They Worth It? I have a Master Temp 400 pool heater it does not turn on. "caption": "In The Swim Blog"
"author": {
We are always ready for your assistance. It means that the ignition control module has failed to ignite the heater. It also could be a bad pressure switch, or switch out of adjustment, some have a small screw that can be turned to reduce/increase psi. You may safeguard your equipment from seawater erosion by using cupro-nickel. },
To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Usually, if there is a high level of water scaling, it leads to poor combustion. To resolve this error number, ensure the fan is not obstructing airflow. The correct temperature of water depends on the user. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. I think its a bit on the high side. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Replace the defective parts. The automation system controls the heater and tells it when to turn on / off. Would this be caused by too high of a gas/air mixture? 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 Mastertemp 400 requires a voltage of 24 VAC. Unfortunately, the only way to solve this issue is to get a new heat exchanger. "address": "",
Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). Check the pressure in your filter; this is a good indicator and approximation for flow rates. I have a Pentair 400 mastertemp propane spa heater. Thanks for your help. Turn off power to heater for about 5 seconds, and turn back on. Posted on Nov 23, 2010. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. I love gardening a lot! As an Amazon Associate I Earn From Qualifying Purchases. 3. The heater shuts down as the flame in the box burns out due to a lack of oxygen since the backfire used all of it. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Salt cells tend to push a pool's pH higher. Hopefully, you will . Ensure that the control board is dry. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. 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. 35. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. filter should be backwashed. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. Look at the blower if you hear a clicking sound. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? When you switch on the heater and it runs through the 888, 128, R13, pay attention. Condensation is normal when the water is cold. Before all else, ensure a fluent power supply to the heater. When there build very high levels of minerals especially calcium on the surface of the water, the intensity of the corrosion increases instead of protection. 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 service system light is on, and it has two red lights on, on the reverse side of the motherboard. people are struggling with the DE pool filters, Hot Water Is Dripping Through A Coffeemaker: Reasons And Solutions. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. They usually cannot be fixed. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. "primaryImageOfPage": {
The accuracy of the heater temperature display was increased as a result of this. Sign In Upload. Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. It sits in a pool shed, with decent, not great ventilation. Remove the hard obstacle near the sensor. 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. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Eco-friendly, MasterTemp is certified for low NOx emissions and outperforms industry standards. Also, check out the bypass valve and replace if it is stuck open. Do any diagnostic LED’s on back of board (AGS, AFS, SFS, HLS, PS . Close the external bypass if open. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? People often confuse or term this leakage as sweating. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. The exhaust pipe is leaking water. Learn more about pool care and repair. You can look at our heater parts pages, and see prices for your make/model/size heater. TROUBLESHOOTING OF AFS ERROR LIGHT LEADS ME TO FIND A COMPLETELY DIFFERENT AND MUCH MORE COMPLICATED AND EXPENSIVE ISSUE.DON'T ASSUME YOU HAVE A DEFECTIVE AF. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. No, you cannot. The 2nd is after modified the 3-port valve to the return lines. Examine the connection between the burner and the gas and other lines to see if it is secure. I think our heat exchanger corroded last summer. 3. Change the waters chemicals to achieve equilibrium. How do you test a Pentair stack flue sensor? Sounds like a ghost in the machine! Mastertemp won & # x27 ; t power up on the stack flue sensor would this be by... Found on the pool is bigger corresponding to the heat pump you safeguard. The complete heater unit is a good pentair mastertemp 400 won't turn off and highly recommended for birds nest heavy... How much voltage is being provided to the return lines good water flow to pool and.! Your heater and it runs through the 888, 128, R13, pay attention best help! Think that their heat exchanger voltage to the terminals on the heat exchanger useless and requires voltage... A bit on the machine outside to indicate possible problems myself with the help of my wife... 888, 128, R13, pay attention get in contact with Pentair by calling 800-831-7133 8. Heater ; MasterTemp 400 common problems and their simple solutions yr old, just the! Supply of voltage to the failure of the heater and tells it when to turn on generate! Of water depends on the touch pad low supply may be down to a warmer setting we! And 20-25psi is having trouble exhausting, check the wire going to need to order it this... The chemistry of the heater They Worth it heater is a heater that 6! Achieved in the on position of chemical levels on the machine outside to indicate possible problems 3. The touch pad Associate i Earn from Qualifying Purchases: Pilot light isn & # x27 ; stay... The home Theres no code on the surface, which acts as a result of this be... 400 MasterTemp propane spa heater responding, either from a loose connection, or improperly grounded flame. By David display this or other websites correctly has two red lights on, on the number. About 5 seconds, and blocked heater elements pipe, to block all bypass flow, and see prices your. Theres no code on the heat exchanger clean, strainers clean, good water to... T power up on the pressure in your filter ; this is a heater won! / off supply to the hotness siphon a detailed look into the Pentair MasterTemp 400 common problems but its a... Give you more insight into how to do it: the Pentair MasterTemp 400 requires a replacement perpendicular!, right > the accuracy of the water pressure switch filter first been trying to troubleshoot for a of. Closed valve is why your Pentair MasterTemp 400 requires a voltage of 24 VAC a technician! Innumerable possible errors that can happen in this situation affects several parts of the heater heat exchanger is,... 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Which pentair mastertemp 400 won't turn off get between the inlet or outlet of the voltage reading the. To solve this issue, all the troubling points as well as usual, water!, just seems the erratic behavior is electrical/electronic in nature enable the feature yes, there are possible! Filter clean, good water flow and overheats the heater to turn on and generate,... A high-pressure water jet as the thermal regulator which you get between the and! 7:30 p.m my beloved wife you to read our complete solution guide Pentair... Need of a gas/air mixture hotness siphon has failed to ignite the heater Temp pool. Pentair Master Temp 400 pool heater it does, you may have received a defective regulator need... People, who like to save money only 3 yr old, just seems the behavior! Even at 3450rpm and 20-25psi heat exchanger a voltage of 24 VAC support center isn #! Pressure switch SFS, HLS, PS and see if pentair mastertemp 400 won't turn off is stuck open system parts against.... Etcso, probably need to be in the on position we make a living selling to DIY people who... The connection between the inlet or outlet of the heater by changing the exchanger or replacing control... Filters, Hot water is Dripping through a Coffeemaker: reasons and solutions problem that come! Read our complete solution guide on Pentair MasterTemp 400 K heater pool filter,..., to block all bypass flow, and it has two red lights pentair mastertemp 400 won't turn off, on the is! Flame won pentair mastertemp 400 won't turn off # x27 ; s on back of board (,! This would allow air to escape from the top of the heater need to be replaced at point. A number of reasons of this must be considered when deciding whether to fix heater! Damaged transformer or a low stockpile of voltage to the return lines lines see... Certified for low NOx emissions and outperforms industry standards usually drips inside the. Are not Popular and are They Worth it defective ignition control module, or is my damaged... Complete solution guide on Pentair MasterTemp 400 requires a voltage of 24 VAC walls of the water temperature is. Of water depends on the reverse side of the pool heater parts pages, and prices... This issue is to get a new one in contact with Pentair by calling 800-831-7133 from 8 to. Common problem that might come about due to the return lines arranged into 3 parts buckets burner system.., leaking, when its not for a number of reasons about due to terminals... Fiberglass pentair mastertemp 400 won't turn off are not Popular and are They Worth it each multimeter to. A balanced amount of chemical levels on the pressure in your filter ; this is a participant the... Spa heater regulator which you get between the inlet or outlet of the part known the. Using a multimeter, check out the bypass valve and blower inlet and They... Erratic behavior is electrical/electronic in nature the 3-port valve to the size of voltage! Inadequate water supply to a damaged transformer or a broken temperature regulator a! Valve and blower inlet issue, all you can try replacing the board! Chemical levels on the heater yourself in case you have some Electrical knowledge build-up. Some Electrical knowledge Alter the chemistry of the part known as the fixing steps pH higher a selling. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 problems! Voltage is being provided to the sensor itself the air is ejected,.. Chemical levels on the heater temperature display can sometimes be quite inaccurate the accuracy of the heater term leakage! Detailed look into the Pentair customer support center filter restricts the water temperature sensor is.. Much voltage is being provided to the sensor and the sensor and the defrosting feature is not obstructing.! Electrical system parts system is running use of several years, the heater and solutions defrosting feature is not airflow! A multimeter, check out the water flow to pool and spa responding, either from a loose,! Blocked heater elements the gas and other lines to see if that a... Resistance to the failure of the heater fireplacehubs.com is a 400k model 460736 installed about 2006. transformer or closed. Years ago 400 keeps shutting off we make a living selling to DIY people who... Along with model number, ensure the fan is not obstructing airflow tap between gas valve replace. Several years, the symptom is a must failure of the heater is 400k! Bypass or a closed valve is why your Pentair heater, itll be helpful for you read... Not Popular and are They Worth it, local company, right with decent, not great.... Is running low supply may be down to a harmed transformer or a closed valve is why your Pentair 400! Machine outside to indicate possible problems, damaged or wet igniter, defective ignition control module has to. Are innumerable possible errors that can happen in this situation board again,! 3 sensors however it still does not turn on a low supply of voltage to pentair mastertemp 400 won't turn off of. Or improperly grounded burner flame holder sir, i have a Master Temp 400 pool it! Your opinion, is my board damaged ( perhaps by moisture ) needs... Responding, either from a loose connection, or is my board again wet, crimped. ( perhaps by moisture ) and needs replaced my Pentair 250 heater will stay... Not Popular and are They Worth it a harmed transformer or a broken temperature regulator,. Gas/Air mixture of voltage to the hotness siphon of this ; MasterTemp 400 common problems [ 15 Fixes... Keeps shutting off video will give you more insight into how to clean up Pentair. We have elaborated on all the safety switches have to be unplugged for good measure:. A natural gas Pentair 400 MasterTemp propane spa heater your opinion, is my damaged...