To troubleshoot each of the above issues, the user needs a quick working solution guide. Some other problems that Pentair Mastertemp 400 pool heater users face are the blower not working, not heating, not igniting, not turning on, knocking noise, and cycles OFF/ON incessantly. A leaking heat exchanger is a serious situation. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. 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. If needed, hire or call a dealer to check it for you or take advice on necessary precautions or methods. Inspect the blower and clean out the stuck debris of the element. },
Read More. Sounds like a ghost in the machine! So, was going to need to be replaced at some point. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. Thoughts? The Thermal Governor has become jammed and is unable to open. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. 4. Boiling in the heat exchanger can occur for a number of reasons. Ryan, start with water flow, make sure that the filter and baskets are clean and the filter pressure is normal, and water is not bypassing the heater, externally, or internally from the internal bypass, located in the front header. Could the problem be the regulator? The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. 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. "name": "In The Swim",
Replace it if you want, or just continue to use the spa thermostat, for pool heating. There will be a reduced water flow if you see that the switch that detects pressure is open. Save money and energy with the MasterTemp High-Performance Heater. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Replace the bad thermistor. The valve has to allow enough water into the heater, not too little, not too much. Otherwise, it will be difficult to verify. Installing a pool heater is not simple, but is done DIY all the time. You can look at our heater parts pages, and see prices for your make/model/size heater. Replace with new igniter. But if the scaling is of a high level, it becomes detrimental to the machine. When this fuse blows, the symptom is a heater that won't power up on the touch pad. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. Clean out the filter first to resolve the low water flow issue. Pentair Mastertemp 400 Blower Not Working, 10. You May Like: Bud Light Ugly Sweater Seltzer 2021. Check out the power of the transformer whether its all good or not. Could the problem be with the flow or pressure sensors? If the thermistor tests are bad or faulty, replace them with a new one. Its a fun combination of plumbing, wiring and gas. 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? Hi Hugh, is it a Hayward heater? Now, check out the voltage supply to the control board. Heater will not start. Check for stuck objects, such as worms, dirt, lint traps, etc. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. Acquire a 10k ohm resistor. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. If you have a Pentair MiniMax NT and are experiencing technical issues, this blog is for you. It is old and a bit rusty and loud. 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.. If it is not working, contact customer service to send you a new control board. For that, clean out the water filter first. Check the pH of the water and make sure it is balanced. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. Test your fill water too. 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. "url": "https://blog.intheswim.com/"
Would you know why the igniter on my Pentair pool heater keeps burning out? 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. They will help you out with replacing your control board. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. Worked for 1 weekend, now won't fire up. The next day I powered pool-on and it registered the correct water temp. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Save my name, email, and website in this browser for the next time I comment. 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. "keywords": "",
Some of these problems and their solutions are mentioned below: Reason 1: The flow of water to the heater has reduced. Normally you can smell a little gas when it kicks on but it does nothing. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. The correct temperature of water depends on the user. 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. We are going to look over the common Pentair MasterTemp 400 error codes in this section. 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. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. Education Center. Also check that the blower comes on. If the issue is related to a high limit switch, examine the fact by ba bypassing the switch. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Here we have elaborated on all the troubling points as well as the fixing steps. Lets start. Do this test with the water still running. I only found 1 small stone stuck inside where the bypass is. Solution: Take the bypass valve out for servicing. Take a closer look at where the water originates. It cycles for a bit then I hear a click either it fires off or it doesnt. Wash them out very carefully with a hose. Your email address will not be published. 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. Replace if there have any defects. Boiling in the heat exchanger might be caused due to a variety of reasons. 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. My heater also powers up, displays lights, without anyone touching it. It is also advised to change the entire system if required. In case there is blockage in the heat exchanger, how do I fix that? The keypad membrane on your heater should be replaced to solve this issue. You could also take the heat exchanger for servicing. When the heater tries but fails to start, it recycles. filter should be backwashed. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. Also, check out the bypass valve and replace if it is stuck open. You may need to replace it if you get it corroded. We are a registered 501(c)3 non-profit that is funded by user donations. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. I tried to turn it off at the control panel by pushing the heater off button but it would just . If it doesnt work, contact the Pentair customer support center. This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. 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. They have a have an SF code for Sensor Failure. Also, closed valve, fluctuating in power . Make sure to maintain the device properly. Have a BRAND new Pentair Mastertemp 400. An explosion requires a large amount of natural gas or propane to build up in one region. 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. Otherwise, the igniter is bad and you need to replace it. The accuracy of the heater temperature display was increased as a result of this. . When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. Step 2: You then need to take apart the Max-E-Therm heater from the system. The blower needs to be repaired or replaced in this situation. They said the 126 display was an error code. By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. spa light is on. I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. POOL AND SPA HEATER (FOR OUTDOOR USE ONLY), Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages), Product HIN / Code Requirements / Safety Warning, Consumer Information and Safety Information, Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting, Indoor Venting-General Requirements Heater Clearances / Indoor Installation . If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the source. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. I called Pentair tech support and they helped with some troubleshooting. If the airflow isnt sufficient within this period, the heater will turn off on its own. Although, theres strong water coming out of the 2 return lines. 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. This kind of damage can be very costly. Check the wire going to the sensor and the sensor itself. A sparking igniter is in good working condition. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. These Pentair MasterTemp 400 Problems relating to temperature are explored below. To resolve this error number, ensure the fan is not obstructing airflow. This also includes replacing any worn-out copper tubes on the machines interior. The Mastertemp 400 requires a voltage of 24 VAC. 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. Would there be any kind of lockout that would prevent the heater to go into "off" mode. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. Among the most common problems associated with all pool heaters and not the Mastertemp 400 alone is inaccurate temperature control. My MasterTemp 400 fails to work intermittently. Edit. Replace the bad igniter and defective flame sensor from your heater. Also, at least once a year, you should disassemble and clean the D.E. 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? 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. Worked for 1 weekend, now won't fire up. "@type": "Person",
Easy troubleshooting and repair. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. Articles and resources for swimming pool owners and DIYers. Condensation is normal when the water is cold. I know I can buy for much less through you guys or elsewhere online. "logo": {
Test your control board with a multimeter. After persisting in this issue, you will hear a sound like a bumping sound from the heater. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. Pinhole leaks develop on the copper tubes that are on the interior of the machine. Be sure all connections are clean and tight. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. You will need a screwdriver for this. I also noticed that I couldnt completely open the valve on the return lines. I replaced the thermistor and still have the same problem. I think our heat exchanger corroded last summer. Your email address will not be published. "image": {
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. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. Why Fiberglass Windows Are Not Popular And Are They Worth It? 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. Reason 4: Thermal Governor has got stuck and is not opening. Im so glad I didnt have to buy additional parts. 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). and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! Defective Keypad Membrane. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle.
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Read More. Sounds like a ghost in the machine! So, was going to need to be replaced at some point. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. Thoughts? The Thermal Governor has become jammed and is unable to open. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. 4. Boiling in the heat exchanger can occur for a number of reasons. Ryan, start with water flow, make sure that the filter and baskets are clean and the filter pressure is normal, and water is not bypassing the heater, externally, or internally from the internal bypass, located in the front header. Could the problem be the regulator? The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. 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. "name": "In The Swim",
Replace it if you want, or just continue to use the spa thermostat, for pool heating. There will be a reduced water flow if you see that the switch that detects pressure is open. Save money and energy with the MasterTemp High-Performance Heater. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Replace the bad thermistor. The valve has to allow enough water into the heater, not too little, not too much. Otherwise, it will be difficult to verify. Installing a pool heater is not simple, but is done DIY all the time. You can look at our heater parts pages, and see prices for your make/model/size heater. Replace with new igniter. But if the scaling is of a high level, it becomes detrimental to the machine. When this fuse blows, the symptom is a heater that won't power up on the touch pad. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. Clean out the filter first to resolve the low water flow issue. Pentair Mastertemp 400 Blower Not Working, 10. You May Like: Bud Light Ugly Sweater Seltzer 2021. Check out the power of the transformer whether its all good or not. Could the problem be with the flow or pressure sensors? If the thermistor tests are bad or faulty, replace them with a new one. Its a fun combination of plumbing, wiring and gas. 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? Hi Hugh, is it a Hayward heater? Now, check out the voltage supply to the control board. Heater will not start. Check for stuck objects, such as worms, dirt, lint traps, etc. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. Acquire a 10k ohm resistor. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. If you have a Pentair MiniMax NT and are experiencing technical issues, this blog is for you. It is old and a bit rusty and loud. 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.. If it is not working, contact customer service to send you a new control board. For that, clean out the water filter first. Check the pH of the water and make sure it is balanced. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. Test your fill water too. 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. "url": "https://blog.intheswim.com/"
Would you know why the igniter on my Pentair pool heater keeps burning out? 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. They will help you out with replacing your control board. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. Worked for 1 weekend, now won't fire up. The next day I powered pool-on and it registered the correct water temp. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Save my name, email, and website in this browser for the next time I comment. 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. "keywords": "",
Some of these problems and their solutions are mentioned below: Reason 1: The flow of water to the heater has reduced. Normally you can smell a little gas when it kicks on but it does nothing. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. The correct temperature of water depends on the user. 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. We are going to look over the common Pentair MasterTemp 400 error codes in this section. 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. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. Education Center. Also check that the blower comes on. If the issue is related to a high limit switch, examine the fact by ba bypassing the switch. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Here we have elaborated on all the troubling points as well as the fixing steps. Lets start. Do this test with the water still running. I only found 1 small stone stuck inside where the bypass is. Solution: Take the bypass valve out for servicing. Take a closer look at where the water originates. It cycles for a bit then I hear a click either it fires off or it doesnt. Wash them out very carefully with a hose. Your email address will not be published. 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. Replace if there have any defects. Boiling in the heat exchanger might be caused due to a variety of reasons. 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. My heater also powers up, displays lights, without anyone touching it. It is also advised to change the entire system if required. In case there is blockage in the heat exchanger, how do I fix that? The keypad membrane on your heater should be replaced to solve this issue. You could also take the heat exchanger for servicing. When the heater tries but fails to start, it recycles. filter should be backwashed. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. Also, check out the bypass valve and replace if it is stuck open. You may need to replace it if you get it corroded. We are a registered 501(c)3 non-profit that is funded by user donations. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. I tried to turn it off at the control panel by pushing the heater off button but it would just . If it doesnt work, contact the Pentair customer support center. This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. 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. They have a have an SF code for Sensor Failure. Also, closed valve, fluctuating in power . Make sure to maintain the device properly. Have a BRAND new Pentair Mastertemp 400. An explosion requires a large amount of natural gas or propane to build up in one region. 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. Otherwise, the igniter is bad and you need to replace it. The accuracy of the heater temperature display was increased as a result of this. . When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. Step 2: You then need to take apart the Max-E-Therm heater from the system. The blower needs to be repaired or replaced in this situation. They said the 126 display was an error code. By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. spa light is on. I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. POOL AND SPA HEATER (FOR OUTDOOR USE ONLY), Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages), Product HIN / Code Requirements / Safety Warning, Consumer Information and Safety Information, Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting, Indoor Venting-General Requirements Heater Clearances / Indoor Installation . If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the source. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. I called Pentair tech support and they helped with some troubleshooting. If the airflow isnt sufficient within this period, the heater will turn off on its own. Although, theres strong water coming out of the 2 return lines. 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. This kind of damage can be very costly. Check the wire going to the sensor and the sensor itself. A sparking igniter is in good working condition. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. These Pentair MasterTemp 400 Problems relating to temperature are explored below. To resolve this error number, ensure the fan is not obstructing airflow. This also includes replacing any worn-out copper tubes on the machines interior. The Mastertemp 400 requires a voltage of 24 VAC. 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. Would there be any kind of lockout that would prevent the heater to go into "off" mode. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. Among the most common problems associated with all pool heaters and not the Mastertemp 400 alone is inaccurate temperature control. My MasterTemp 400 fails to work intermittently. Edit. Replace the bad igniter and defective flame sensor from your heater. Also, at least once a year, you should disassemble and clean the D.E. 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? 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. Worked for 1 weekend, now won't fire up. "@type": "Person",
Easy troubleshooting and repair. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. Articles and resources for swimming pool owners and DIYers. Condensation is normal when the water is cold. I know I can buy for much less through you guys or elsewhere online. "logo": {
Test your control board with a multimeter. After persisting in this issue, you will hear a sound like a bumping sound from the heater. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. Pinhole leaks develop on the copper tubes that are on the interior of the machine. Be sure all connections are clean and tight. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. You will need a screwdriver for this. I also noticed that I couldnt completely open the valve on the return lines. I replaced the thermistor and still have the same problem. I think our heat exchanger corroded last summer. Your email address will not be published. "image": {
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. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. Why Fiberglass Windows Are Not Popular And Are They Worth It? 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. Reason 4: Thermal Governor has got stuck and is not opening. Im so glad I didnt have to buy additional parts. 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). and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! Defective Keypad Membrane. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle.
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