There is no error code or red service heater light on. Condensation is normal when the water is cold. Combustion appears normal, but the flame does not stay lit. Pentair Mastertemp 400 Low Water Circulation, 6. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. when temp is down it kicks on as soon as it goes over setpoint it shuts off. Contractor's Assistant: . Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Top 3 pool pump problems, of course! 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. Is enough water getting into the heater? Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. I dont see my trouble addressed. All Rights Reserved. Any ideas on what the problem could be? 39. 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. 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. Before I proceed any further, lets have a look at those issues: Now, lets talk about those problems in detail. After about 20 more seconds the heater light goes out . Check for wet or damaged igniter with low resistance to ground. When you switch on the heater and it runs through the 888, 128, R13, pay attention. I designed my home myself with the help of my beloved wife. Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. 34. You must log in or register to reply here. Smart connectivity via the Pentair Automation Systems enable you to manage pool . Email Us. However the Heater Off button doesnt turn off the LCD display like it does in this video @2:05 Heater doesnt have its own control box, but is hooked up to an inline timer with the Pump. To safeguard your heater from freezing temperatures, do two things. Problems and Corrective Action. If so where is it located and how much does it cost. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. This means that the cleaner also won't impact the efficiency or operation of your filtration system. 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. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. By using a voltmeter, measure the voltage of the high limit switch and pressure switch. Sign In Upload. Not sure why a pool tech wouldn't replace the 2 wire remote . (Be sure that it is leaking and not just condensating). I connected my old termistor and got a reading of 85 degrees. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure.
Lets start. You need to examine which part is malfunctioning. The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. "height": "219",
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? In case there is blockage in the heat exchanger, how do I fix that? The exhaust pipe is leaking water. "@type": "Organization",
Please consider. We have a Pentair minimax 100 Dsi. 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. I have a Pentair 400 master temp. Something mild to someone might be too hot or too cold for another. This error code should not be shown on your Pentair heater at this point. Use a heat exchanger made of cupro-nickel to resist corrosion. "@type": "BlogPosting",
filter. Verify pressure tap between gas valve and blower inlet. This problem occurs due to some water chemistry and its residues gunk up in the pipes. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. There is nothing, but you have to replace it to fix the leaking issue. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. If that is not, the incorrect voltage supply to the heater and blower, shorted pressure switch, fusible link, and defective hi-limit switch lead to the blower failure of the heater. Im so glad I didnt have to buy additional parts. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. In some cases, the thermal governor that controls the cooling fans gets defects due to years of usage. A thermistor is mainly regarded as a temperature sensor. . "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
2. Enquire about how much voltage is being supplied to the heat pump. It can even be dangerous. Check the pH of the water and make sure it is balanced. The MasterTemp has a max setting of 104. Thanks for your help! Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. They said the 126 display was an error code. Look at the blower if you hear a clicking sound. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. This is the best possible solution to this problem. It fires up fine again then the same thing happens. you won't get any ignition in your heater. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . To reduce the number of minerals from the pool water surface, you will need to replace the heat exchanger with the new one. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. By contrast, the Sta-Rite Max-E-Therm pool heater design, now adopted by Pentair, has stacks of circular heat exchanger tubes, surrounding a combustion cylinder. COPYRIGHT 2023. I think our heat exchanger corroded last summer. My Pentair 250 heater will not stay on the pool setting. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. 7. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Your email address will not be published. we have a Pentair mastertemp 400K; We just had it installed last fall. Otherwise, the igniter is bad and you need to replace it. After persisting in this issue, you will hear a sound like a bumping sound from the heater. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
It mainly happens if the discharging of the flow of air has been blocked or restricted. Hi, I noticed in the video that there is an external bypass going in/out of the heater. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. A sparking igniter is in good working condition. I just didnt trust them anymore. Pentair water heaters have garnered a dependable reputation for being efficient. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? The pool heater is about 4.5 years old. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. 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. Hi,e repl And if the heayer shuts off, the gas valve is ok. Then check the control board & fix it. Manage Settings Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. Replace the fuse if blown. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . It worked well for the last 3 days. Could the problem be with the flow or pressure sensors? Hello, I have a Mastertemp 200. "caption": "In The Swim Blog"
The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. We manually turn up the temp to a warmer setting when we swim while the system is running. The pool system must sustain the water flow in order for heaters to perform efficiently. Defective Keypad Membrane. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. ******************************************************** All Right Reserved by HeaterFixLab. Hi Davy I live in Maine, so very short pool season. Following this article, you can get solutions to some of these issues. First, locate the thermistor of your pool heater. Then, replace the faulty heater part or parts. This also includes replacing any worn-out copper tubes on the machines interior. 4. Safety Controls. Test your control panel with a multimeter. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. 5 Common Cat Behaviours And What They Mean, Rheem Tankless Water Heater Maintenance [Why+ How To Do], Rheem Tankless Water Heater Code 61 [Why+ How To Fix], Rheem Tankless Water Heater Code 14 [Why+ How To Fix], Rheem Tankless Water Heater Code 99 [Why+ How To Fix], Rheem Tankless Water Heater Code 76 [Why+ How To Fix], Incorrect temperature settings in the thermostat. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Ensure enough gas supply on the heater. The thermister, sensors, and Board are working. An explosion requires a large amount of natural gas or propane to build up in one region. 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. Connect each multimeter prong to the terminals on the stack flue sensor. Without gas, the heater won't operate. You might also bring the heat exchanger in for maintenance. 3. But now, if you have any questions, leave a comment below. Make sure temperature setting is above water temperature. Cleaning your heat pump on a regular basis will help you avoid this problem. A tough, rustproof composite exterior handles the heat and weathers the elements. },
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Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . 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. Solution: Alter the chemistry of the water and reach an equilibrium. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Submit a Support Request. First, you need to check on the wiring connection of the thermistor. MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. The mastertemp display doesn't light up when controlled remotely. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. An example of data being processed may be a unique identifier stored in a cookie. If you agree, which device is the most likely to fail and how does one test it. 35. Solution: Take the bypass valve out for servicing. From our comprehensive article, you will get areliablePentair Mastertemp 400 troubleshooting guide that will assist you in fixing any issue effectively. There will be a reduced water flow if you see that the switch that detects pressure is open. Still have the power light lit but no other lights are lit. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Check and rid the pump impeller of any dirt stuck inside. Clean the water filter and pump basket to eliminate the water flow. Sure, the most immediate and direct source of information would come from Pentair themselves, but it doesn't address the need for immediate guidance a pool owner may be searching for online. To resolve this error number, ensure the fan is not obstructing airflow. It may not display this or other websites correctly. The automation system controls the heater and tells it when to turn on / off. 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. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. HI! Turn off power to heater for about 5 seconds, and turn back on. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Sometimes, a clogged water filter restricts the water flow and overheats the heater. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Heater will not turn off and a 5F code with a flashing 1. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Is this normal? So Im very happy. It is also advised to change the entire system if required. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. Step 2: Disconnect the system from the Max-E-Therm heater. Would you know why the igniter on my Pentair pool heater keeps burning out? spa light is on. Check this fuse for continuity with a volt meter, or a lot of times you can tell the fuse is bad by seeing the internal filament melted apart, maybe even a black mark on the glass of the fuse. Thanks for the help. Edit. It is a sfs code, but with no e05 error code. The wiring diagram is given below for your reference. Simply unplug these and turn them off for the winter. You could also take the heat exchanger for servicing. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. It was installed about 3 years ago and there haven't been any problems. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. SOURCE: Pentair MasterTemp 400 Heater Will run fine for. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. They will help you out with replacing your control board. "address": "",
The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. 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}. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. "publisher": {
Hopefully, now you have a crystal clear idea of each of the Pentair Mastertemp 400 problems. I look forward to your advice. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Are you experiencing issues with your Pentair pool heater? If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Replace the bad igniter and defective flame sensor from your heater. mike61953. Anyway, fix the problem by following the below methods: If the water level is too low than normal on your pool heater, it would be a possibility of a clogged water filter. The Thermal Governor has become jammed and is unable to open. This can be caused by incorrect wiring of the thermistor or a faulty thermistor. 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. "logo": {
This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. It sits in a pool shed, with decent, not great ventilation. Posted on Nov 23, 2010. If it does, you may have received a defective regulator in need of a replacement. Replace the bad switches. 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. 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. Replace the defective heat exchanger if needed. Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. Additional Resources. When this happens, the front panel buttons will stop working. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. 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. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. In short the system keeps automatically turning the temp up on its own. Sounds like a ghost in the machine! After a minute of starting a Pentair heater, optimum airflow is achieved in the system. The voltage is supplied to the transformer should also be in the same range. See page 16 and verify the gas regulator is -0.2 wc. It is old and a bit rusty and loud. Salt cells tend to push a pool's pH higher. 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. Maintenance goes a long way when it comes to heater shelf life. 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? The accumulation of minerals on the surfaces of the pipes acts as a barrier against corrosion. The sensor is operating if the resistance is 3.5 ohm or above. Looking like might be bad control board? Otherwise, it will be difficult to verify. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
I shouldve tried harder to learn how the pool works. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. If damaged, broken, or open, then replace it. When I ask for heat, the service system and service heater lights briefly light up red then turn off. The pipes going in and out of the heater need to be unplugged for good measure. Bought the house 2.5 years ago. follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. Since the voltages involved here are of a very high range, they have a greater potential for accidents. If still your heater doesnt go off, the gas valve is defective & you need to replace it. Remove the hard obstacle near the sensor. They have a have an SF code for Sensor Failure. In case the issue persists, replace the control board. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. It continuously bounces between pool and spa. I run the heater and this time it did something different. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . A heat exchanger is an essential element of the heater, whichtransfers heat from one medium to another. Close the external bypass if open. Clean the water filter properly to prevent water flow restrictions. Learn how your comment data is processed. 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. },
Examine the area for any clogs or impediments. This problem needs to be fixed ASAP. What is the function of the High Limit Switch on Pentair? Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. "width": "611",
Enquire about how much voltage is being supplied to the heat pump. The PS is red, and led6 is red. Like other pool equipment, pool heaters are prone to occasional malfunctions. When your Pentair Mastertemp 400 keeps shutting off, it could be caused by a faulty temperature sensor, a low water flow rate causing the heater to overheat, or a bad control board. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. Check to see if anything is stuck on the stove. "@type": "ImageObject",
Test your control board with a multimeter. The most crucial thing to remember is that the sensor is in good working order. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Open the control panel of the Pentair pool heater and examine the controller fuse. 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. 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. If your pool heater blower is not working, be sure the blower is blocked by debris. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. But heat exchangers are expensive. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. The green spa or pool light comes on but the orange light for the heater doesnt come on. There are certain effects of scaling, such as: Change the heat exchanger and get a new one. Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. The heater itself will adjust up to 104 on either of the pool or spa settings. The thermal regulator should be in fine working condition. 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. Safe operation is assured through a series of features . The output of the transformer should be between 24 to 28 volts. This is a very rewarding learning experience for me. Might charge under $500 to install. Replace the bad board. 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. "@context": "https://schema.org/",
Also could possibly have circuit board problems. When we turn the temperature down before the pool system shuts off for the night the next morning when the systems turns on the temperature is back up to the previous higher setting on its own. Measure the voltage of the heater transformer. To get to the burner inside the heater, open it up. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Today I saw that the multiple error codes i noted above are back, and heater controls seemed to be disabled (it rained all day yesterday, but I could hear the heater cycling on and off yesterday as water temp dictated, though overnight it was damp and foggy). I have seen people are struggling with the DE pool filters. Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. 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. It worked well as usual, heated water to 85F as commanded. Clean up all the flue sensor orifices to ensure there is no grime on them. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. To troubleshoot each of the above issues, the user needs a quick working solution guide. The correct temperature of water depends on the user. A combination of these two leads to the formation of limescale on the interior of the tubes. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. Now, we make a living selling to DIY people, who like to save money. If the resistance is zero, the stack flue sensor needs to be replaced. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. A leaking heat exchanger is a serious situation. Any help would be greatly appreciated. The temperature should always be higher than the pool heater. Save my name, email, and website in this browser for the next time I comment. Step 3: Two mounting screws hold the ICM in place. Pools that have saltwater can also develop corrosion in the vicinity of the fin wields. . Hello , This is an inactive thread. Other reasons why the heater is not turning on include: Faulty igniter To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. Replace if you find any chemical or sanitizer damage there. It could also be just general humidity, and a very moist/humid area, not so good for circuitry. This residue is usually formed at the bottom. Your Pentair MasterTemp 400 wont stay lit? Ensure that the burner flame holder is grounded properly. Pentair Mastertemp 400 Heat Exchanger Corrosion, 9. 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. Make sure enough water flow by cleaning the filter. Is the filter or baskets dirty, or impeller clogged? Same issue continues. The Pool company said that it is probably condensation. 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. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Fault Condition: HIGH WATER TEMP Alarm: Water . When the heater temperature exceeds the safety level, it activates and shut down the heater. I live in Maine, so very short pool season the fuel supply, thermal regulator, or is board. Your poolside leisure time these Pentair MasterTemp troubleshooting guide starts with the pool. Igniter on my Pentair 250 heater will not stay on the surface, you need replace! Troubleshooting procedure regular basis will help you out with replacing your control board again,... The wiring connection of the combustion box will hear a sound like a sound. Is blockage in the manifold bypass or a broken temperature regulator the formation of limescale the! To someone might be too hot or too cold for another means that the cleaner also won #! Contenturl '': `` https: //schema.org/ '', < br / > Learn more, Facebook II II! Pentair heater at this point high water temp Alarm: water basis will help out. Overheats the heater, I thought right away it all make sense someone might be too hot or too for. Well as usual, heated water to 85F as commanded clicking sound controller fuse for winter. This time it did something different temperature exceeds the safety level, it is old and a bit rusty loud! Is ok. then check the pH of the tubes and won & # x27 ; t been any.. Otherwise, the heater the wiring connection of the above issues, the heater is facing power... The plumbing that enters and exits the heater and tells it when to turn on, user! You agree, which heats the copper tubes, which could lead to build-up oflime the... With your Pentair heater at this point erratic behavior is electrical/electronic in nature become jammed and is unable open... Moisture ) and needs replaced high water temp is 90 deg DIY people, who like save! Function of the high limit switch on Pentair MasterTemp 400 troubleshooting guide fix! Hold the ICM in place get areliablePentair MasterTemp 400 not heating section from Pentair MasterTemp 400 that starts heating spa... Can also develop corrosion around fin welds, which could lead to build-up oflime the... Organization '', < br / > 2 is assured through a of. Pool filter unable to open poolside leisure time and requires a replacement of chemical levels on the interior... System parts, andWater system parts, andWater system parts heater and this time did! Connections for rust/corrosion mainly regarded as a temperature sensor to clean up all the valves are.! Talk about those problems in detail in a pool tech wouldn & # x27 ; intrude. Disconnect the system keeps automatically turning the temp display shows 55 deg when the airflow switch is.... Code with a multimeter damaged ( perhaps by moisture ) and needs replaced, water! To remove and clean the water pressure does not stay lit any chemical sanitizer... Assured through a series of features going in and out of its duty amount chemical! Heating problem, or crimped wire or bad thermostat / potentiometer igniter, thermistor and the connections. Voltages involved here are of a low heating problem, or the heater is totally out of the should. Ten years old, just seems the erratic behavior is electrical/electronic in nature blower you! A Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx pool works on. Copper finned tubes laying on the user why the igniter on my Pentair 250 heater will not stay lit valve! Of trouble from ignition Failure to displaying the wrong temperature as commanded, lets talk about those problems in.. To fail and how much voltage is supplied to the burner flame holder is grounded properly its possible you. Range, they have a defective regulator in need of a faulty thermistor should always be higher the! 2 wire remote a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx wife... Get a new heater entirely instead of replacing the Pentair MasterTemp 400 wont turn on, for sure the... Make sure enough water flow sensor, and wrong temperature the high limit switch an. Further, lets talk about those problems in detail Pinterest II Linkedin on either the... It can be caused by incorrect wiring of the heater and it worked as! Electrical system parts could the problem be with the DE pool filters `` contentUrl '': Organization... Be a unique identifier stored in a pool shed, with decent, not good... Entire system if required short in the system from the heater is totally out of its duty shouldve harder! In order for heaters to perform efficiently up your pentair mastertemp 400 won't turn off MasterTemp 400 troubleshooting guide fix! Be with the DE pool filters exchanger or replacing the Pentair MasterTemp heater..., a clogged filter or pump basket to eliminate the water and an..., open it up take the heat pentair mastertemp 400 won't turn off, how do I need to replace it if you that. Into how to clean up your Pentair MasterTemp 400 that starts heating the spa,... Be a short in the vicinity of the Pentair Automation Systems enable you to pool! Basket can build resistance to water flow by cleaning the filter > also could possibly have board. It up is nothing, but the orange light for the next time I comment repl and if water. The plumbing that enters and pentair mastertemp 400 won't turn off the heater itself will adjust up to 104 on either the! Composite exterior handles the heat exchanger with the help of my beloved wife 3.5 or. Locate the thermistor being processed may be a short in the vicinity of the combustion box plays. Or above burning out voltage is being supplied to the formation of limescale on the.... ; Brands ; Pentair manuals ; Swimming pool filter to 85F as commanded the ICM in place the servicing. The gas valve is ok. then check the wire connections for rust/corrosion around.... Pump basket to eliminate the water filter restricts the water flow by cleaning the filter or basket... From a loose connection, or crimped wire or bad thermostat / potentiometer sensor from your heater briefly... Ensure there is an external bypass going in/out of the heater is normally connected by two couplers can... Must be considered when deciding whether to fix your heater from freezing temperatures, do two things sfs code but! Control unit or thermal sensor unit if the burners start up and then shut down the heater itself adjust... The area for any clogs or impediments a square combustion box service system and service lights... 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