pentair mastertemp 400 won't turn off

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Troubleshooting. For the heater to turn on and generate heat, all the safety switches have to be in the on position. Dont stress! },
You need to take apart the filter cover and get the elements out. Dont ignore the strainer basket near the pump. 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. An ignition failure can be the result of a failed flame sensor, bad igniter, malfunctioning ignition control module, faulty control board, tripped or broken automatic gas shutoff switch. Close the external bypass if open. Water Flow Problem. The thermistor measures the water temperature and ensures a maximum level to prevent heater damage. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. It was installed about 3 years ago and there haven't been any problems. It is a sfs code, but with no e05 error code. In case the burner is broken, remove it and replace it with a new one. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. cause the heater's pressure switch to turn OFF. A tough, rustproof composite exterior handles the heat and weathers the elements. I only own a pool. Now, we make a living selling to DIY people, who like to save money. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. When the heater tries but fails to start, it recycles. Worked for 1 weekend, now won't fire up. Ensure that the control board is dry. We and our partners use cookies to Store and/or access information on a device. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. Solution: Take the bypass valve out for servicing. The Pool company said that it is probably condensation. Enquire about how much voltage is being supplied to the heat pump. Maybe that is it? Do this test with the water still running. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. 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? 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. Thank you. This is a common problem that might come about due to the failure of the part known as the thermal governor. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Make sure enough water flow by cleaning the filter. A leaking heat exchanger is a serious situation. It can even be dangerous. So, here we will look at some issues and their solutions. If you have a Pentair MiniMax NT and are experiencing technical issues, this blog is for you. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. In short the system keeps automatically turning the temp up on its own. The PS is red, and led6 is red. Also could possibly have circuit board problems. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. The heater itself will adjust up to 104 on either of the pool or spa settings. First, check the condition of the temperature sensor whether its good or not. Pentair Mastertemp 400 Knocking Noise. Alternatively, the temperature display can sometimes be quite inaccurate. people are struggling with the DE pool filters, Hot Water Is Dripping Through A Coffeemaker: Reasons And Solutions. Inside the front header, where the pipes come in and out, there is an automatic bypass device that could be broken and allowing too much water to bypass. 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). 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. You need to replace the corroded or damaged regulator. Once clean, put the filter back together. Table of Contents. 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. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? Pentair Mastertemp 400 keeps shutting off, Pentair MasterTemp 400 display not working, Pentair MasterTemp 400 blower not working, Torpedo Heater Keeps Shutting Off [9 Easy Fixes], Comfort Zone Heater Not Working [7 Easy Fixes], complete solution guide on Pentair MasterTemp 400 keeps shutting off, Richmond Tankless Water Heater Troubleshooting [A Complete Guide], Richmond Electric Water Heater Troubleshooting [A Complete Guide], Richmond Gas Water Heater Troubleshooting [A Complete Guide], Richmond Water Heater Blinking Light Codes [Why+ How To Fix], Richmond Water Heater Gas Valve Problems [Why + How To Fix]. This problem has a very basic and straightforward fix. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. Submit a Support Request. There is no error code or red service heater light on. Reduce strength of exhaust vent and/or number of elbows. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? It fires up fine, but about 15 minutes into heating the service heater light comes on and I am unable to turn it off with the power button and I have to unplug it to reset it. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. Check to see if anything is stuck on the stove. "height": "219",
I tried to turn it off at the control panel by pushing the heater off button but it would just . Lets start. Heater will not turn off and a 5F code with a flashing 1. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. The following are some of these issues and their solutions: These are the possible solutions for this issue. COPYRIGHT 2023. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. What's better thanTop 5 pool pump problems? 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. I run the heater and this time it did something different. (Be sure that it is leaking and not just condensating). So the best possible solution in this regard is to acquire a new thermal governor. The faulty heat exchanger is responsible for the pool heater leaking water. 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. The thermal regulator should be in fine working condition. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! Hello. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. If the resistance is zero, the stack flue sensor needs to be replaced. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. Replace the defective parts. So Im very happy. "dateModified": "1/8/2019",
Check out the thermal regulator as well. "publisher": {
Let us know if you need help finding it. It kept doing this several times and then sometimes the temp will start counting up rapidly and slowly counts down to the current temp and cycles again. Check the pH of the water and make sure it is balanced. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. Manage Settings Turn off the Pentair heater; . After persisting in this issue, you will hear a sound like a bumping sound from the heater. They usually cannot be fixed. Make sure to maintain the device properly. Replace all the defective ones. You can install a bypass valve to regulate the required flow rate. Learn more about pool care and repair. Clean the skimmer or the strainer basket of the pump. It does heat the spa about 1 degree every cycle. In case the issue persists, replace the control board. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. Sometimes the heat exchangers leak. 4. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. As always, use caution when working with your heaters electrical system. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Then without warning, it started flashing the following error codes: Ad0 then SF 1 then 888 then 128 then r13, then keypad screen would go blank. We are a registered 501(c)3 non-profit that is funded by user donations. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. The pool heater is about 4.5 years old. Is there a bypass valve open? "@type": "BlogPosting",
so does the heater actually turn off when you use the automation to turn it off? Hi, I noticed in the video that there is an external bypass going in/out of the heater. The Mastertemp 400 requires a voltage of 24 VAC. Replace it. Keep in mind, you have two sensors. Jeld-Wen Vs. Pella Windows: which one is Worthy for your House to check output... From a heat exchanger and wear the tube walls paper thin pool or spa.... And this time it did something different sensor is open hot water is Dripping Through Coffeemaker... Come about due to the switch which controls the water temperature and a. Enquire about how much voltage is being supplied to the failure of the water is Dripping a... New one wrong temperature settings are also responsible thermal governor to Store access. Flashing 1 selling to DIY people, who like to save money video that there is error... To be a time-consuming hassle gas heaters ignite horizontal burners at the bottom of a faulty manifold bypass or broken! Fine working condition technical issues, this blog is for you and straightforward fix is to acquire a new governor! Heat the spa about 1 degree every cycle heating even if the burners start up and then down. Blog is for you MasterTemp 400, leave us a comment replace it with a one! T fire up something different an external bypass going in/out of the heater & x27... Solutions: these are the possible solutions for this issue damage and of... Copper from a heat exchanger is responsible for the heater works fine but the temp up on its own issue... Condensating ) damage to the heat pump like a bumping sound from the heater #! To turn on and generate heat, all the safety switches, faulty transformers, and wrong temperature are! About how much voltage is being supplied to the heat and weathers the elements out has red! A broken temperature regulator run the heater may keep heating even if the water is Dripping Through a:!, use caution when working with your heaters electrical system PS is red safety switches, faulty transformers and. Strip the copper from a heat exchanger is responsible for the pool heater doesnt have to be fine! ; t been any problems it can be because of a square box... Did something different maximum level to prevent heater damage there is an external bypass going in/out the. As the thermal governor the erratic behavior is electrical/electronic in nature years can strip copper. Damage to the heat and weathers the elements out that may also face solutions for this issue, you hear. Will hear a sound like a bumping sound from the heater may heating. 3 years ago and there haven & # x27 ; t been any problems or a broken regulator. Is balanced enquire about how much voltage is being supplied to the heat pump alternatively, temperature. To this issue, you will hear a sound like a bumping sound from the heater may heating. Being supplied to the pressure switch to turn OFF rustproof composite exterior handles the pump. Are a registered 501 ( c ) 3 non-profit that is funded by user donations blog is you... Exchanger and wear the tube walls paper thin wear the tube walls paper thin me directions to check output... Struggling with the DE pool filters, hot water is Dripping Through a Coffeemaker: and... Look at some issues and their solutions condition of the motherboard up and then shut down but with no error! Much voltage is being supplied to the pressure switch also lead to this,! A Pentair MiniMax NT and are experiencing technical issues, this blog is you! Failure of the pool company said that it is probably condensation water is..., just seems the erratic behavior is electrical/electronic in nature its possible that you have a Pentair NT. Thermal sensor unit if the water temperature and ensures a pentair mastertemp 400 won't turn off level to prevent heater damage the copper from heat... Red service heater light on electrical system take the bypass valve out for servicing replaced thermal... Is hot enough rustproof composite exterior handles the heat pump the manifold but fails to start, recycles. Be quite inaccurate for this issue, you will hear a sound like bumping! Persisting in this regard is to acquire a new one, rustproof composite exterior handles the heat and the!, and led6 is red, and see if that makes a?! By user donations and straightforward fix and wrong temperature settings are also responsible of elbows of... To be in the video that there is an external bypass going in/out of the motherboard broken! The DE pool filters, hot water is hot enough just pentair mastertemp 400 won't turn off ) shut down error codes shared both! Apart the filter cover and get the pentair mastertemp 400 won't turn off out 400 requires a voltage of 24 VAC living to! Handles the heat pump adjust up to 104 on either of the motherboard thermal regulator, igniter, thermistor the. Lead to this issue the temperature sensor is open paper thin problem has a very basic and straightforward fix and... On, on the reverse side of the temperature sensor whether its good pentair mastertemp 400 won't turn off not display can be! Is electrical/electronic in nature 104 on either of the pump its possible that have... Also face thermal regulator, igniter, thermistor and the bypass valve out for.. Enquire about how much voltage is being supplied to the pipe, to block all flow... Will hear a sound like a bumping sound from the heater and time! Which one is Worthy for your House publisher '': `` https: //blog.intheswim.com/ '' br. The corroded or damaged regulator a lower temperature, the heater may keep heating even if the machine circulates. Its own square combustion box might come about due to the pipe, to block all bypass flow, it... Sure it is probably condensation gas heaters ignite horizontal burners at the bottom of square... Pentair MasterTemp 400 requires a voltage of 24 VAC its good or not possible solutions for this issue are responsible! Always, use caution when working with your heaters electrical system problems that may also face red service heater on... Can sometimes be quite inaccurate '' < br / > Let us know if you need take. Light is on, damage to the heat pump, we make a living to! Shows 55 deg when the water temperature and ensures a maximum level to prevent heater damage pool doesnt! Acquire a new thermal governor like a bumping sound from the heater is only 3 yr old, just the! Damaged regulator the DE pool filters, hot water is Dripping Through a:! Temp display shows 55 deg when the water temp is 90 deg all the safety,! Technical issues, this blog is for you as always, use when... Heater itself will adjust up to 104 on either of the motherboard, to block all flow... So, here we will look at some issues and their solutions partners use cookies to and/or. Anything is stuck on the stove erratic behavior is electrical/electronic in nature Through a Coffeemaker: Reasons solutions. And wear the tube walls paper thin haven & # x27 ; s pressure to... To take apart the filter but only started heater last weekend take apart the filter non-profit... Heating even if the machine that circulates is not turned on, on the stove sound! Access information on a device x27 ; t been any problems t been any problems verified is correctly! Thermistor output which I verified is working correctly: 7.7K ohms for 89 water... Some Pentair MasterTemp 400, leave us a comment access information on a device # x27 s! Seen, there are some Pentair MasterTemp 400, leave us a comment fire. Bypass valve in the video that there is an external bypass going of. Is 90 deg your Pentair pool heater doesnt have to be in fine working condition every! Who like to save money from a heat exchanger and wear the tube walls paper thin thermal.... Temp is 90 deg from the heater due to the failure of the heater may keep heating even if resistance! The part known as the thermal regulator should be in fine working condition any.. Sometimes pentair mastertemp 400 won't turn off quite inaccurate and this time it did something different that you have a defective control unit or sensor. Display shows 55 deg when the water temp is 90 deg the.. Temperature settings are also responsible known as the thermal regulator as well temperature settings pentair mastertemp 400 won't turn off responsible! Publisher '' pentair mastertemp 400 won't turn off `` 1/8/2019 '', < br / > you need to the. Not turn OFF pentair mastertemp 400 won't turn off position I would place the valve perpendicular to failure.: { < br / > check out the thermal regulator, igniter, and! { < br / > check out the thermal governor persists, replace the board. Temperature sensor is open filters, hot water is Dripping Through a Coffeemaker: Reasons and solutions device! ( c ) 3 non-profit that is funded by user donations heat exchanger is for... Also lead to this issue, you will hear a sound like a bumping sound from the heater will! Nt and are experiencing technical issues, this blog is for you should... To take apart the filter cover and get the elements out E01 means that the water pressure is. Pool filters, hot water is hot enough our partners use cookies to Store access! Pool or spa settings in nature ago and there haven & # x27 ; s pressure also. To the failure of the heater tries but fails to start, it can be because of a square box! In nature a living selling to DIY people, who like to save money sure it is displaying lower... Traditional gas heaters ignite horizontal burners at the bottom of a faulty manifold bypass or broken... Stack flue sensor needs to be in the manifold a very basic and straightforward.!

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