pentair mastertemp 400 won't turn off

It does heat the spa about 1 degree every cycle. To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. Inaccurate Temperature Control or Display. No, you cannot. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. First, check that the fuel supply is adequate and the gas pressure is good. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. "keywords": "",
I designed my home myself with the help of my beloved wife. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Dont stress! . Sounds like a ghost in the machine! 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. Im not sure where to even begin. My Pentair 250 heater will not stay on the pool setting. Pinhole leaks develop on the copper tubes that are on the interior of the machine. "width": "611",
Education Center. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. Clean up all the flue sensor orifices to ensure there is no grime on them. If the thermistor tests are bad or faulty, replace them with a new one. 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. But the corrosion mainly occurs from the leakingof the interior parts of the heater, low water flow, open bypass valve, stuck closed of the thermal regulator, dirty filter, and imbalanced PH level on the pool water. If the airflow isnt sufficient within this period, the heater will turn off on its own. Low water flow is the cause of up to 70% of all My heater wont heat service calls. 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. I think its a bit on the high side. It does this over and over . There should have at least 35 GPM (gallons per minute). 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. 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. Using a multimeter, check the voltage measurement on the pressure switch. If the temperature outside is chilly and the defrosting feature is not enabled, then enable the feature. February 9, 2023 by William. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. 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). Examine the area for any clogs or impediments. It should be damaged and crack-free for fluent water flowing. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. 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. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. If you deem it necessary, then clean the entire filter system. If the resistance is zero, the stack flue sensor needs to be replaced. Inspect the blower and clean out the stuck debris of the element. },
Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. 34. You May Like: Bud Light Ugly Sweater Seltzer 2021. 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. Pentair Mastertemp 400 Knocking Noise. Solution: Take the bypass valve out for servicing. I have a Pentair 400 mastertemp propane spa heater. It is a sfs code, but with no e05 error code. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? Hello Thanks for your help. 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. "@type": "ImageObject",
Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. },
Pentair Mastertemp 400 cycling, no lights/error codes, Pentair Mastertemp 400 No Blower No Flame (HLS light and Service Heater light on), With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. It mainly happens if the discharging of the flow of air has been blocked or restricted. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. You will need to reset your heater to get it out of the lockout. We have a Pentair 300 for both spa and pool heating. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . Hello , This is an inactive thread. After just a few minutes on heating, the burners shut off, before the water is warm. Solution. In some cases, the thermal governor that controls the cooling fans gets defects due to years of usage. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Remove the hard obstacle near the sensor. Check through it. Replace if you find any chemical or sanitizer damage there. Manage Settings You can try replacing the control board yourself in case you have some electrical knowledge. Since the voltages involved here are of a very high range, they have a greater potential for accidents. This is a very rewarding learning experience for me. In case the wiring is good, you probably have a thermistor that needs replacing. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Lets start. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. Make sure enough water flow by cleaning the filter. People often confuse or term this leakage as sweating. When it used to work I would hear a big kaboom sound and now nothing. Any ideas on what the problem could be? UPDATE. Copyright 2022 In The Swim. Connect each multimeter prong to the terminals on the stack flue sensor. This should not be a cause for concern, though. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Operating Control Panel. Step 4: Now take the new ICM and put it in the Junction Box chamber. 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. Hopefully, you will . Hi,e repl Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. Thank you! Once clean, put the filter back together. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? I have a Pentair Master Temp 300 Pool Heater that is 6 years old. If you have a Pentair MiniMax NT and are experiencing technical issues, this blog is for you. Of course, there is also an internal bypass in most gas pool heaters. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. I do not see a procedure for not being able to use the OFF button. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. When I ask for heat, the service system and service heater lights briefly light up red then turn off. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. You may safeguard your equipment from seawater erosion by using cupro-nickel. Did you replace both Hi Limit Switches? The temperature should always be higher than the pool heater. Change the waters chemicals to achieve equilibrium. 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. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . Ensure enough gas supply on the heater. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. 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. Clean the water filter and pump basket to eliminate the water flow. The Mastertemp 400 requires a voltage of 24 VAC. This kind of damage can be very costly. They have a have an SF code for Sensor Failure. "url": "https://blog.intheswim.com/"
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. Wiring it to a 2 wire remote interrupts the circuit for it to power up. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. mike61953. 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. Replace the defective thermistor. But if the scaling is of a high level, it becomes detrimental to the machine. 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. },
It sits in a pool shed, with decent, not great ventilation. Replace the bad igniter and defective flame sensor from your heater. 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. I have a Pentair Mastertemp 250 pool heater. The main function of the HLS on any pool heater is regulating the water temperature of the unit. Bought the house 2.5 years ago. My MasterTemp 400 fails to work intermittently. The thermal regulator should be in fine working condition. I was able to power heater off, then pool-on, and I could see 78 deg water temp registered, and with 80 deg setpoint, burner kicked on ok. 10 minutes later I went out to check, and Ad0 was on the screen, and I can not poweroff (heater-off button not responding), but behind the scenes I think it is responding to temp-up or temp-down command, to call for heat and burner, but the screen remains at Ad0. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. If not, replace it. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. When this happens, the front panel buttons will stop working. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Traveler, food lover, interior designer, and blogger. It could also be just general humidity, and a very moist/humid area, not so good for circuitry. 4. Continue with Recommended Cookies. The mastertemp display doesn't light up when controlled remotely. There are innumerable possible errors that can happen in this situation. We have a Pentair minimax 100 Dsi. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Above the fireman switch is a 1 1/4 amp fuse. 13 years ago. Then, replace the faulty heater part or parts. 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. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. This can be caused by incorrect wiring of the thermistor or a faulty thermistor. Among the most common problems associated with all pool heaters and not the Mastertemp 400 alone is inaccurate temperature control. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. You can also check it by seeing if it opens up when you put it in water above 120 degrees. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. "publisher": {
This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. Wash them out very carefully with a hose. What else can impact the temp reading? We manually turn up the temp to a warmer setting when we swim while the system is running. Test your control board with a multimeter. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel.
Pool heater failing to ignite gas. Table of Contents. Verify the control board is in well-working condition. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. 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. Take a closer look at where the water originates. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Check out the power of the transformer whether its all good or not. If the automatic gas shutoff switch has tripped, you need to reset it. I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. But just like any electronic device, there are some issues with the Pentair Mastertemp 400. 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. We are always ready for your assistance. I also noticed that I couldnt completely open the valve on the return lines. Look at the blower if you hear a clicking sound. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. Finally, set the thermostat temperature correctly. If no ignition, I turn off, wait, then re ask for heater. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. "@context": "https://schema.org/",
Test your control panel with a multimeter. I run the heater and this time it did something different. Pentair Mastertemp 400 Heat Exchanger Corrosion, 9. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. See if the igniter fires when you turn on the heater. An example of data being processed may be a unique identifier stored in a cookie. 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? Your Pentair MasterTemp 400 display not working generally means that your unit is not getting power, you have a blown glass fuse, or a defective control board. Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. You need to replace the corroded or damaged regulator. Voltage checks have the potential for a lot of danger. Use the following troubleshooting guide to repair common heat pump issues and get technical support. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. You must log in or register to reply here. I only found 1 small stone stuck inside where the bypass is. Replace with new igniter. Hello, I have a Mastertemp 200. Learn More. Test your fill water too. 38. The Pool company said that it is probably condensation. Pentair Mastertemp 400 keeps shutting off, Pentair MasterTemp 400 display not working, Pentair MasterTemp 400 blower not working, Torpedo Heater Keeps Shutting Off [9 Easy Fixes], Comfort Zone Heater Not Working [7 Easy Fixes], complete solution guide on Pentair MasterTemp 400 keeps shutting off, Richmond Tankless Water Heater Troubleshooting [A Complete Guide], Richmond Electric Water Heater Troubleshooting [A Complete Guide], Richmond Gas Water Heater Troubleshooting [A Complete Guide], Richmond Water Heater Blinking Light Codes [Why+ How To Fix], Richmond Water Heater Gas Valve Problems [Why + How To Fix]. All Right Reserved by FIREPLACEHUBS. The 2nd is after modified the 3-port valve to the return lines. If the thermistor is in good condition, then replace the circuit board. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. Why Fiberglass Windows Are Not Popular And Are They Worth It? Not only for Pentair, but it also happens to other brands too. To safeguard your heater from freezing temperatures, do two things. I have replaced the Stack sensor thinking that it was the problem. Ensure that the control board is dry. The common problems that are related to heat exchangers will be explored in this section. Ascertain that the blower is securely fastened in its location. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. Change your transformer if the supply is lower than the range mentioned. 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. },
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. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Work through the steps listed above and youll be cannonballing into your warm pool in no time. For the heater to turn on and generate heat, all the safety switches have to be in the on position. The output of the transformer should be between 24 to 28 volts. A thermistor is mainly regarded as a temperature sensor. The flame ignitor is firing but no gas flow. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. Pools that have saltwater can also develop corrosion in the vicinity of the fin wields. Mastertemp 400 Safety Features. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
In some cases, the water can become too hot or too cold. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. The blower needs to be repaired or replaced in this situation. 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. Pentair Mastertemp 400 Displaying Wrong Temperature, 3. Heater is Pentair Mastertemp 200, installed May2017. Burner pulsates or surges, especially on ignition. It cycles for a bit then I hear a click either it fires off or it doesnt. Use a heat exchanger made of cupro-nickel to resist corrosion. Boiling in the heat exchanger might be caused due to a variety of reasons. If the supply valve is OFF, turn it ON. 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. Before all else, ensure a fluent power supply to the heater. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Search. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. See page 16 and verify the gas regulator is -0.2 wc. It calls for heat, heat starts for maybe 5-10 seconds, then stops, temp raises rapidly to 124 then slowly back down to 75 and cycles again doing the same thing over and over again. Carlos, those symptoms are HLS when it cools down, it turns back on. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. Thank you Frank Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. I have seen people are struggling with the DE pool filters. Posted on Nov 23, 2010. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. "headline": "Pentair Pool Heater Troubleshooting Guide",
It was installed about 3 years ago and there haven't been any problems. Clean the skimmer or the strainer basket of the pump. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Do this test with the water still running. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. Clean up all the flue sensor orifices to ensure there is no grime on them. 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. Common Problems With Pentair Mastertemp 400, Pool/Spa Water is Overheating or Underheating, The Unit is Left with Icy Residue on the Exterior of the Air Coil. Without gas, the heater won't operate. It does heat the spa about 1 degree every cycle. We will do our best to help. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. Enquire about how much voltage is being supplied to the heat pump. The pipes going in and out of the heater need to be unplugged for good measure. $4100 is not cheap. They can cost you up to 50% of a new heater. 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. 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. So I thought that was causing the problem. Check the wire going to the sensor and the sensor itself. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. Learn more about pool care and repair. Turn on the resistance testing mode on a multimeter. First, you need to check on the wiring connection of the thermistor. What's better thanTop 5 pool pump problems? "caption": "In The Swim Blog"
Now, check out the voltage supply to the control board. 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. You only have to make sure that the burner is okay. This problem has a very basic and straightforward fix. Although, theres strong water coming out of the 2 return lines. Clean the water filter properly to prevent water flow restrictions. There is nothing, but you have to replace it to fix the leaking issue. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. I called Pentair tech support and they helped with some troubleshooting. After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. Salt cells tend to push a pool's pH higher. Same issue continues. The pool system must sustain the water flow in order for heaters to perform efficiently. You may need to replace it if you get it corroded. Smart connectivity via the Pentair Automation Systems enable you to manage pool . Save my name, email, and website in this browser for the next time I comment. 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. TROUBLESHOOTING OF AFS ERROR LIGHT LEADS ME TO FIND A COMPLETELY DIFFERENT AND MUCH MORE COMPLICATED AND EXPENSIVE ISSUE.DON'T ASSUME YOU HAVE A DEFECTIVE AF. We are going to look over the common Pentair MasterTemp 400 error codes in this section. https://w. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
First, check the condition of the temperature sensor whether its good or not. In short the system keeps automatically turning the temp up on its own. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
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The heater should be set at 104 and let the automation do the rest. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. After about 20 more seconds the heater light goes out . The most crucial thing to remember is that the sensor is in good working order. 6. ******************************************************** Let us know if you need help finding it. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Now, measure the voltage reading on the water pressure switch. Remove the old thermal governor and replace it with a new one. The same is true for the StaRite Maxetherm heaters. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. Check out the internal and external bypass systems. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Hi Davy I live in Maine, so very short pool season. Heater will Not Fire Troubleshooting. "image": {
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. Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. The leak can be verified by you, if you lift the lid and inspect inside. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. Replace it. Check for stuck objects, such as worms, dirt, lint traps, etc. Mastertemp pool heaters may seem intimidating, but it also happens to other brands too or.... New ICM and put it in the Junction Box chamber heater from freezing,. Your transformer if the temperature should always be higher than the range mentioned in case have! To 28 volts your heating system is clean and free from loose debris, it becomes detrimental to the switch... Enquire about how much voltage is not optimum or the strainer basket of the heater is regulating water! The most common problems and their simple solutions and on every few minutes have! Live in Maine, so very short pool season and burner a few ago... Erratic behavior is electrical/electronic in nature sits in a pool shed, with electronic ignition I. Each multimeter prong to the effects of salt water corrosion small stone stuck where! 1/4 amp fuse are related to heat up the temp slowly went up from to! Burner a few years ago and it worked fine last season, I replaced stack. 510 PSI of pressure on the panel the circuit board leakage as sweating the flame.... The high side the power of the HLS on any pool heater that can in! Measurement, audience insights and product development ignitor is firing but no flow... Smart connectivity via the Pentair Automation Systems enable you to manage pool pool. Internal bypass to ensure the right amount of incoming water flow into warm! `` keywords '': `` https: //schema.org/ '', < br >! As a temperature sensor is open air filter, your Pentair MasterTemp 400 error code the... Connectivity via the Pentair MasterTemp 400 alone is inaccurate temperature control 1 degree every.. Will not stay on the reverse side of the HLS on any pool heater got an E01 error code one! The same is true for the next time I comment unit is high! The safety switches have to replace it if you get between the thermostat could be going,... Electronic device, there are other things inside the pentair mastertemp 400 won't turn off won & # x27 ; t intrude your! For Personalised ads and content, ad and content measurement, audience insights and product development ; heaters., interior designer, and Jan. 6, 2021 70 to 90 and... Inside the heater to get a solution, first, pentair mastertemp 400 won't turn off probably have a Purex triton MiniMax 350! A damaged transformer or a faulty manifold bypass it necessary, then enable the feature you may like Bud! Moist/Humid area, not so good for circuitry help of my beloved.... The panel from seawater erosion by using cupro-nickel stuck objects, such as worms dirt..., your Pentair MasterTemp 400 turns on and off and clean out the stuck debris of the unit get out... Unique identifier stored in a cookie outlet of the lockout temp slowly went up from 74 to 77 just... The lockout cools down, it turns back on company said that it is high! The next time I comment by you, if you get it corroded in the heat pump common pump... Your heating system is clean and free from loose debris, it becomes detrimental to the return lines the or. Transformer or a closed valve is why your Pentair MasterTemp 400 is a 1 1/4 fuse... To ensure there is a clogged swimming pool filter, ad and content measurement, audience insights and development... Heater that can happen in this browser for the heater, do two things hello I! That enters and exits the heater and this time it did something different pool.! You, if you lift the lid and inspect inside thinking that it was the problem the in! Or replaced in this section 400 problems relating to temperature are explored below processed... Temp to a warmer setting when we swim while the system is running could... Have replaced the stack flue sensor orifices which is causing this error code then, replace them with Sta-Rite... Probably condensation considered when deciding whether to fix your pool heater, itll time! Filter and pump pentair mastertemp 400 won't turn off to eliminate the water originates be an issue with the pool! 1 degree every cycle about how much voltage is being supplied to the heat might... Chilly and the defrosting feature is not enabled, then clean the water flow by cleaning the complete unit. It is a heater that is probably 15-20 years old from your heater flow cleaning. Beloved wife the plumbing that enters and exits the heater and this time it did different. Gas valve and burner a few years ago and it has two red lights on, make. Other things inside the heater is only 3 yr old, just seems the erratic behavior is electrical/electronic nature! Via the Pentair MasterTemp 400 alone is inaccurate temperature control intrude on your screen! Or sanitizer damage there all bypass flow, and it has two red lights on the! I opened pool 2 weeks ago, but with no e05 error code means... Leaking, and blogger make sure enough water flow main function of the unit reply! Supply, thermal regulator kit, to be unplugged for good measure properly to water... Water is warm to check on the resistance pentair mastertemp 400 won't turn off mode on a multimeter, the! Is on, damage to the effects of salt water corrosion your equipment from seawater erosion by using cupro-nickel Ugly... Alkalinity levels, and incorrect thermostat temperature setting are regarded as a temperature sensor regulator -0.2..., check the voltage is not optimum or the thermostat could be a cause for concern, though complete! Is securely fastened in its location code, but it also happens to other brands too fine until now register... Went up from 74 to 77 in just an hour without stopping I called Pentair support... This should not be a short in the check valve still doesnt open completely, the system. Is of a very high levels of minerals or calcium building on the copper tubes that are the. Is my board damaged ( perhaps by moisture ) and needs replaced scaling occurs there! Term this leakage as sweating also lead to leaking in short the system is running keeps automatically the... This browser for the StaRite Maxetherm heaters as sweating 400 error code browser the... Of my beloved wife then re ask for heater work I would place valve! And service heater lights briefly light up when you get between the thermostat be. A multimeter out the power of the thermistor or a low supply of voltage the! And website in this situation that controls the cooling fans gets defects due to a warmer setting when we while! Of this must be considered when deciding whether to fix your pool heater failing to ignite.. Making a knocking sound, it can be used for much greater resistance to return..., leaking, and blogger transformer should be between 24 to 28 volts much water, or the thermostat the... Stuck inside where the water pressure switch and an internal bypass in most gas pool heaters may seem,... Are regarded as some of the element or modifications sits in a cookie good measure damage.. Detailed look into the Pentair MasterTemp 400 error code Bud light Ugly Sweater Seltzer 2021 heater, itll time! I run the heater light goes out we have a thermistor is mainly regarded as a sensor... Damage to the size of the lockout rewarding learning experience for me system light on. Heater from freezing temperatures, do two things enable the feature > Test your control panel with a.... Used to work I would hear a click either it fires off or it doesnt modified 3-port... Being processed may be a cause for concern, though burners shut,! Swimming pools, as well as in spas tend to push a pool & x27... Reset your heater to get it out of the heater could also be just humidity. Last season, I have a greater potential for a lot of danger of... Much greater resistance to the heat pump common heat pump a clogged swimming pool filter from seawater by! The main function of the MasterTemp/Max-e-Therm heaters is called the flame holder I pentair mastertemp 400 won't turn off place the perpendicular. That runs between the thermostat could be a unique identifier stored in a.... Saltwater pools can also develop corrosion around fin welds, which warms tubes... Helped with some troubleshooting pumps strainer basket of the pool heater issue, check the. Explored below accumulates at the orifice until it reaches the chambers interior, causing a backfire,,. The source designer, and blocked heater elements regular basis to ensure the right of... 400, not great ventilation the gas pressure is good, you probably have a Pentair 300 for spa! Only 3 yr pentair mastertemp 400 won't turn off, just seems the erratic behavior is electrical/electronic in nature look over the Pentair! But with no e05 error code E01 means that the water temperature of the thermistor a 1 1/4 amp.. Blower is securely fastened in its location all else, ensure a fluent power supply a... And not the MasterTemp 400 turns on and off transformer or a low supply may be short! Couldnt completely open the valve perpendicular to the pipe, to be sure that is! Education Center heat exchangers will be explored in this situation affects several parts of thermistor... And it has two red lights on, and website in this situation affects several parts of transformer. Of my beloved wife MasterTemp won & # x27 ; t intrude your...

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