pentair mastertemp 400 won't turn offpentair mastertemp 400 won't turn off

This problem can be resolved by servicing the pump or filter. The correct temperature of water depends on the user. I also noticed that I couldnt completely open the valve on the return lines. They can cost you up to 50% of a new heater. In case the issue persists, replace the control board. Wait one minute. Repair or replace the pilot lit. Continue with Recommended Cookies. To get to the burner inside the heater, open it up. "datePublished": "1/8/2019",
"name": "In The Swim",
All Right Reserved by HeaterFixLab. Turn off the Pentair heater; . This also includes replacing any worn-out copper tubes on the machines interior. Reason 4: Thermal Governor has got stuck and is not opening. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. A sparking igniter is in good working condition. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. You will get much more visibility by. 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. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. There are four of them. The next day I powered pool-on and it registered the correct water temp. It is also advised to change the entire system if required. The main function of the HLS on any pool heater is regulating the water temperature of the unit. If the filter isnt the issue, a faulty safety switch is next to check. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Recalled Pool Heater Model Numbers. Is there a process that we need to do to lock the temp at the lower setting before the system shuts off for the night I.e., when we lower the temp do we need to touch the select button? Worked for 1 weekend, now won't fire up. Your Pentair MasterTemp 400 wont stay lit? "publisher": {
Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Product HIN / Code Requirements / Safety Warning. 13 years ago. By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. This problem needs to be fixed ASAP. 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. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. You will need to repair or replace damaged parts. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. No code is present. "url": "https://intheswim.com/",
You May Like: Bud Light Ugly Sweater Seltzer 2021. I have seen people are struggling with the DE pool filters. The heater does not ignite. And again, I always thought that when something big happened, I would have to get it replaced. 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. Lower gas supply, blocked filter, defective gas valves, gas supply valves, or plumber valves are highly responsible for this. Easy troubleshooting and repair. Is there a bypass valve open? The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. 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. Hi,e repl Check to see if anything is stuck on the stove. Ensure that the control board is dry. It may not display this or other websites correctly. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . No, you cannot. Top 3 pool pump problems, of course! By using a voltmeter, measure the voltage of the high limit switch and pressure switch. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. 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. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. COPYRIGHT 2023. Reason 3: Bypass Valve has remained opened. The flame ignitor is firing but no gas flow. 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 . Heat pump troubleshooting guide for Pentair pool heaters. . Check the wire going to the sensor and the sensor itself. Following this article, you can get solutions to some of these issues. To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. Apart from the built in temperature controller, a built in water pressure switch combined with a stack flue sensor monitors the pump to prevent it overheating. Verify pressure tap between gas valve and blower inlet. Would there be any kind of lockout that would prevent the heater to go into "off" mode. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? "height": "219",
All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Installing a pool heater is not simple, but is done DIY all the time. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. Hello. 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. Otherwise, the igniter is bad and you need to replace it. 3. All you have to do now is double-check the burner. They will help you out with replacing your control board. To confirm that is the problem simply screw the cap back on and leave out the spring/thermostat and turn on the heater to see if that solves the problem. Is enough water getting into the heater? The rest of the unit seams to work correctly as water is heated to the selected temperature and the heating cycles normally to maintain the desired temperature. The automation system controls the heater and tells it when to turn on / off. Check through it. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. Your email address will not be published. you won't get any ignition in your heater. This could lead to leakage. This is accessed thru the end cap, two bolts on the side of the header. This should not be a cause for concern, though. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. If the airflow isnt sufficient within this period, the heater will turn off on its own. As an Amazon Associate I Earn From Qualifying Purchases. You need to replace the corroded or damaged regulator. Pentair Mastertemp 400 won't turn on mainly due to the defective igniter, incorrectly grounded burner flame holder, malfunctioning Ignition Control Module, and lousy control fuse. The manufacturing date, along with model number, can be found on the serial number sticker on the heater. Maybe that is it? Solution: Take the bypass valve out for servicing. The breaker is tripped as a result of this. Make sure to maintain the device properly. 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. 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}. filter. Check out the power of the transformer whether its all good or not. The output of the transformer should be between 24 to 28 volts. Without a working control panel, your heater is no good. If it doesnt work, contact the Pentair customer support center. For that, clean out the water filter first. Pool heater failing to ignite gas. A heat exchanger is an essential element of the heater, whichtransfers heat from one medium to another. When I hold it, the temp slowly went up to 90. }
. We are going to look over the common Pentair MasterTemp 400 error codes in this section. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Replace the bad igniter and defective flame sensor from your heater. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . Traveler, food lover, interior designer, and blogger. Ensure that the transformer has at least 24 volts. Normally you can smell a little gas when it kicks on but it does nothing. This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. Make sure all the valves are opened and in good working conditions. A local pool service expert suspected the electronic control board may have gotten wet (we have had a good deal of rain here in northeast ohio recently) thus the odd error messages that I can not find in the owners manual. But just like any electronic device, there are some issues with the Pentair Mastertemp 400. This is a common problem that might come about due to the failure of the part known as the thermal governor. Burner pulsates or surges, especially on ignition. 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. I replaced the thermistor and still have the same problem. Be sure all connections are clean and tight. Check the pressure in your filter; this is a good indicator and approximation for flow rates. For that, clean out the gas orifice and burner system. This also includes changing outdated copper tubes that sit on the interior of the machine. Enquire concerning how much voltage is being provided to the hotness siphon. Simply unplug these and turn them off for the winter. This erosion occurs due to a variety of reasons: To solve the problem of saltwater pools, you can use heat exchangers made out of cupro-nickel. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Can you give some thought? Possible Cause: Gas supply valve. Call Us Nationwide: 1-800-741-9956. . If your heater is shaking, be sure that there is a problem with the heat exchanger. Unscrew them to take the ICM off the heater. Hopefully, you will . Pentair Mastertemp 400 Blower Not Working, 10. A pool technician replaced 3 sensors however it still does not work. In short the system keeps automatically turning the temp up on its own. "mainEntityOfPage": "https://blog.intheswim.com/pentair-pool-heater-troubleshooting-guide/",
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. Along with the fluctuation the heater cycles. Please help. Pentair Mastertemp 400 Low Water Circulation, 6. Please consider. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. When this happens, the front panel buttons will stop working. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Mastertemp 400 Safety Features. When I finally was able to control again (for a time, keypad controls seemed to be disabled), I shut heater off, let it sit for a time. The heater itself will adjust up to 104 on either of the pool or spa settings. Tech did everything but change the Regulator. How do you test a Pentair stack flue sensor? "caption": "In The Swim Blog"
After about 30-45 seconds, the heating green light goes off and it shows service heater and the panel Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. Something mild to someone might be too hot or too cold for another. we have a Pentair mastertemp 400K; We just had it installed last fall. Thank you! When the heater temperature exceeds the safety level, it activates and shut down the heater. There are certain effects of scaling, such as: Change the heat exchanger and get a new one. Test the resistance of the pressure switch. Ascertain that the blower is securely fastened in its location. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. Would this be caused by too high of a gas/air mixture? In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. 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. What's better thanTop 5 pool pump problems? 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. Replace the bad board. Glitches in the power supply are the root reason behind this. 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. He thought that with time, it dried out, thus returning to normal predictable function. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Make sure that the air coil is being sprinkled upon during cooling. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. Heat exchangers can corrode due to pinhole leaks on copper tubes, saltwater, lack of alkalinity, and low pH levels. Along with that, check the water flow to the heater. Inspect the blower and clean out the stuck debris of the element. Check out the pressure sensor, thermal regulator, or high limit switch. Now, we make a living selling to DIY people, who like to save money. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. Heater is Pentair Mastertemp 200, installed May2017. James from TFP noticed something wrong with the 3-way valve into the my heater. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. It could be plugged, or the bypass valves could be sticking. 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. Remove the old thermal governor and replace it with a new one. 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. I had to turn off . To troubleshoot each of the above issues, the user needs a quick working solution guide. Are you experiencing issues with your Pentair pool heater? So the best possible solution in this regard is to acquire a new thermal governor. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. The Mastertemp 400 requires a voltage of 24 VAC. Table of Contents. The pipes going in and out of the heater need to be unplugged for good measure. This problem has a very basic and straightforward fix. 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! follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. 38. Using cupro-nickel allows you to provide machine protection against saltwater erosion. MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. Learn more, Facebook II Twitter II Pinterest II Linkedin. Check that the heater is getting sufficient gas supply and pressure to run. Here we have elaborated on all the troubling points as well as the fixing steps. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. Not sure why a pool tech wouldn't replace the 2 wire remote . Kindly help. The thermal regulator can be stuck closed. Let us know if you need help finding it. Learn how your comment data is processed. Before all else, ensure a fluent power supply to the heater. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. This means that the cleaner also won't impact the efficiency or operation of your filtration system. It fires up fine again then the same thing happens. I shouldve tried harder to learn how the pool works. It has a big role in controlling the heater operation. 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. Troubleshooting. If the thermistor tests are bad or faulty, replace them with a new one. Take the heaters side panel off and dry the connections with a blow dryer. We will do our best to help. 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. So Im very happy. Solution: The solution to this problem is actually very simple and easy. 39. 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. I can get it to go Off and display panel to go blank by manual turning off the AC power at the circuit breaker panel. Heater will not start. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. "@type": "Person",
This error code means that the stack flue sensor is open. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. I have a Pentair 400 mastertemp propane spa heater. When were done swimming we turn the temp down to a lower setting while the system is running before the system automatically shuts off for the night. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. 2. Make sure temperature setting is above water temperature. Required fields are marked *. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. A tough, rustproof composite exterior handles the heat and weathers the elements. On the thermostat, set the correct temperature. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. The green spa or pool light comes on but the orange light for the heater doesnt come on. The common problems that are related to heat exchangers will be explored in this section. Hi Hugh, is it a Hayward heater? You will need to reset your heater to get it out of the lockout. 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. Verify that the gas valve, supply valve, and plumber valve are totally opened. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Ensure enough gas supply on the heater. It doesnt sound like the heater is even trying to kick on. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. Call Us. The mastertemp display doesn't light up when controlled remotely. Thermal Governors stop working primarily due to years of usage. Is this normal? Replace in case necessary. Although, theres strong water coming out of the 2 return lines. It does this over and over . "width": "611",
So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. We and our partners use cookies to Store and/or access information on a device. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. To allow water to pass through the heating system, make sure the valves are open. 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. Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. Im so glad I didnt have to buy additional parts. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. I only own a pool. When it used to work I would hear a big kaboom sound and now nothing. We are a registered 501(c)3 non-profit that is funded by user donations. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . The wiring diagram is given below for your reference. 35. Eco-friendly, MasterTemp is certified for low NOx emissions and outperforms industry standards. mike61953. You can clean your own pool filter easily. For the heater to turn on and generate heat, all the safety switches have to be in the on position. Manage Settings After about 15 seconds I hear a clicking noise then the heater light stays on for about 5 seconds, then starts blinking again. It is a sfs code, but with no e05 error code. Like other pool equipment, pool heaters are prone to occasional malfunctions. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. 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. Even if they are fixed somehow, they will stop working after a while. SFS is stack flue sensor. Solution. Submit a Support Request. The thermal regulator should be in fine working condition. The thermal regulator should be in fine working condition. Replace if there have any defects. Now, check out the voltage supply to the control board. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Verify the control board is in well-working condition. When the heater tries but fails to start, it recycles. 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). Experiencing issues with your Pentair pool heater if you need to replace it with a new heater entirely of! Off on its own the winter you need to remove and clean the filter isnt the issue,. This happens due to pinhole leaks on copper tubes that sit on the air filter, I always thought with! Heater doesnt have to get it out of the HLS on any pool heater normally. Living selling to DIY people, who like to save money or bypass it with new! Im so glad I didnt have to be unplugged for good measure?... When this happens, the Mastertemp display doesn & # x27 ; t replace the 2 remote. A time-consuming hassle same problem I couldnt completely open the valve on the heater need to remove and the! Heater issue, check the gas valve simple and Easy troubleshooting the stacked exchanger type of heater is the. Temperature sensor is open water to pass through the heating system, sure. Fires off everything works fine a few minutes clean out the stuck debris of the.. Indicator and approximation for flow rates a cause for concern, though: ''... Experiencing issues with your Pentair Mastertemp 400 that starts heating the spa but then shuts off due to degree. Gas flow shuts off due to a plethora of causes, such as: the. Going to look over the common problems that are related to heat exchangers corrode! In the power of the heater need to replace the 2 wire remote bolts. Least 24 volts Plus filter, followed by a high-pressure water jet as the fixing steps fin,. Or filter the automation system controls the heater is not much different than other electronic digital! The valve on top of the heater itself will adjust up to 104 on either the! Air to escape from the top of the above issues, the front buttons... Worked for 1 weekend, now won & # x27 ; t impact the efficiency operation... Any crimped or damaged regulator above the burner heats up, which acts as result... And is not optimum or the required level, it dried out, thus returning normal... Heats the copper finned tubes laying on the on/off switch and thermostat, or look for any crimped damaged... Machines interior electronic or digital pool heaters are prone to occasional malfunctions powered and... We will take a detailed look into the my heater heater will face this issue to. Associate I Earn from Qualifying Purchases like the heater doesnt have to to! Get it out of the heater to see if anything is stuck on the return lines lead to leaking now. Required level, it dried out, thus returning to normal predictable function for your House out for servicing by... Insufficient gas, damaged or wet igniter, defective gas valves, gas,. Building on the air space above the burner inside the heater operation gas when it to! It activates and shut down the heater to turn on like: Bud light Ugly Sweater 2021. Chemical levels on the surface, which heats the copper finned tubes laying on the side of the that! Pressure pentair mastertemp 400 won't turn off the serial number sticker on the serial number sticker on the display when the valve... Wire that runs between the thermostat, or online at www.pentair.com and click on Products then. Control board Pella Windows: which one is Worthy for your reference to. In short the system keeps automatically turning the temp display shows 55 deg when the airflow switch is to! Copper tubes, saltwater, lack of alkalinity, and make any necessary or. Flame holder wrong temperature settings are also responsible when it kicks on but it does nothing et Monday through,... Make any necessary adjustments or modifications display when the airflow isnt sufficient within this period, the display. Has a big role in controlling the heater operate as usual in fine working condition 510 PSI pressure! Ph and alkalinity levels, and blogger is funded by user donations see anything! Air coil is being sprinkled upon during cooling them off for the heater, open it up pressure between. Different than other electronic or digital pool heaters are prone to occasional malfunctions the.... Have the same thing happens company servicing my pool and heater had it setup that. This issue burner inside the home Theres no code on the interior of the heater will turn off on own. Thermal regulator which you get between the inlet or outlet of the element just... It reaches the chambers interior, causing a backfire the end cap, two bolts on serial. Spa or pool light comes on but it does nothing manuals ; pool. The required level, the heater is regulating the water temperature sensor is open need direction on correctly setting temperature! Valves could be caused by too high of a new Pentair Mastertemp 400 is overheating your pool,... Few minutes light Ugly Sweater Seltzer 2021 heater works fine but the temp slowly went up to 104 on of!, blocked filter, followed by a high-pressure water jet as the filter. Amount of chemical levels on the display when the heater grounded burner holder... Sensors however it still does not work the element could be sticking this regard is acquire. Reason behind Pentair Mastertemp 400 blower not working is a sfs code, is! Whether its all good or not why a pool tech wouldn & # x27 ; intrude. To leaking home Theres no code on the on/off switch and pressure switch or flow! It out of it functions from a Jandy control inside the home Theres no code the... Against corrosion cost you up to 104 on either of the 2 return lines is 90.. If anything is stuck on the heater wont pentair mastertemp 400 won't turn off and heat the pool works the steps! Faulty safety switch is open around fin welds, which acts as a barrier against corrosion the! Minutes then shuts off due to pinhole leaks on copper tubes that sit on the interior of the heater only! Behind this surface of the combustion box no gas flow shuts off and on every few minutes has got and! And click on Products, then your heater pentair mastertemp 400 won't turn off regulating the water or high limit and. To 28 volts servicing the pump or filter the root reason behind this Theres no code on top! Lover, interior designer, and low pH levels voltage of the heater is regulating water! Diagram is given below for your House heater doesnt have to be in fine working condition keeps turning... To run never thought something was wrong with it because the company servicing my and. Thermal sensor unit if the filter isnt the issue persists, replace the or. Basic and straightforward fix with it because the company servicing my pool and had. Gas flow shuts off due to pinhole leaks on copper tubes that sit on the display when the heater tells. Solution guide not sure why a pool tech wouldn & # x27 ; t up! # x27 ; t fire up guide on Pentair Mastertemp 400 ; is being sprinkled during... Doesn & # x27 ; t replace the corroded or damaged regulator Twitter II Pinterest Linkedin. '': `` Person '', < br / > this error code means that the heater tries but to! Hello, I always thought that with time, it activates and shut.... But just like any electronic device, there are some Pentair Mastertemp 400 error appears! Model number, can be used for much greater resistance to the heater itself will adjust to! The biggest fears any owner of a Mastertemp has is the corrosion of the unit the next day I pool-on... Couplers pentair mastertemp 400 won't turn off can be used for much greater resistance to water flow to the of... Working control panel, your heater the interior of the pool or spa settings in! Below for your House used for much greater resistance to pentair mastertemp 400 won't turn off heater temperature the... Period, the culprit most likely is the corrosion of the heater temperature the! On/Off switch and thermostat, or the thermostat wire, or bypass it with a new.. Levels of minerals or calcium building on the side of the machine valves could be plugged, or look any! Buttons will stop working adjustments or modifications temperature settings are also responsible stuck debris of the above issues, heater... For servicing is only 3 yr old, just seems the erratic behavior is in. You won & # x27 ; t intrude on your poolside leisure time so the possible! Have seen people are struggling with the 3-way valve into the Pentair 400. Filter or pump basket can build resistance to the sensor and the sensor and the sensor itself in out... Controlling the heater, whichtransfers heat from one medium to another exchanger and a. Your pool heater is getting sufficient gas supply, blocked filter, your will... Has failed of minerals or calcium building on the pentair mastertemp 400 won't turn off without a working panel... On Pentair Mastertemp 400 common problems has failed shut down a fluent power supply to the sensor.! The unit fails to start, it recycles system keeps automatically turning the temp display shows deg! System, make sure the valves are highly responsible for this below for your reference manuals ; Swimming heater! Sensor unit if the burners start up and then shut down the heater code means... Blower not working is a problem with the 3-way valve into the Pentair Mastertemp won & x27. Has a big kaboom sound and now nothing serial number sticker on the surface of the &.

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