pentair mastertemp 400 won't turn off

So the best possible solution in this regard is to acquire a new thermal governor. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Inspect the blower and clean out the stuck debris of the element. filter. The main function of the HLS on any pool heater is regulating the water temperature of the unit. We will do our best to help. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. 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. I connected my old termistor and got a reading of 85 degrees. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . The accuracy of the heater temperature display was increased as a result of this. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. Be sure water flow is good (inspect internal bypass assy). If still, the problem is persisting, reset the heater by turning the breaker ON and Off positions. Of course, there is also an internal bypass in most gas pool heaters. You are using an out of date browser. The flame ignitor is firing but no gas flow. The keypad membrane on your heater should be replaced to solve this issue. The Mastertemp 400 requires a voltage of 24 VAC. Check out the fuel level as well. 3. Operating Control Panel. These Pentair MasterTemp 400 Problems relating to temperature are explored below. I have replaced the Stack sensor thinking that it was the problem. The pool system must sustain the water flow in order for heaters to perform efficiently. The following are some of these issues and their solutions: These are the possible solutions for this issue. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. "logo": {
Change your transformer if the supply is lower than the range mentioned. It mainly happens if the discharging of the flow of air has been blocked or restricted. 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). So, here we will look at some issues and their solutions. There are innumerable possible errors that can happen in this situation. Learn more about pool care and repair. Pentair MasterTemp 400 has this problem that after about 10 minutes of ignition it suddenly stops automatically and there is a sound like some stones are gargling in the pipes of Pentair MasterTemp 400. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. You can also check it by seeing if it opens up when you put it in water above 120 degrees. If it stays running at the low thermostat setting, then let it run and if it never shuts off, until the pool is getting too warm then shut off, and turn on/off manually for a few days, until you can get a new thermostat. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. Gentlemen, Heat pump troubleshooting guide for Pentair pool heaters. 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. Keep in mind, you have two sensors. Frank. Ensure that the control board is dry. Manage Settings 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. Possible Cause: Gas supply valve. This problem occurs due to some water chemistry and its residues gunk up in the pipes. },
Why is my Pentair pool heater not coming on? Above the fireman switch is a 1 1/4 amp fuse. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. This error code means that the stack flue sensor is open. So I thought that was causing the problem. Pentair Mastertemp 400 Heater Not Turning On, 2. Replace the fuse if blown. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. Would you know why the igniter on my Pentair pool heater keeps burning out? my pentair mastertemp 400 heater will come on, pilot will light and heating green light comes on. The heater itself will adjust up to 104 on either of the pool or spa settings. First, check the condition of the temperature sensor whether its good or not. Replace the defective heat exchanger if needed. {
. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. The breaker is tripped as a result of this. Carlos, those symptoms are HLS when it cools down, it turns back on. 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. 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. Enquire about how much voltage is being supplied to the heat pump. 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. cause the heater's pressure switch to turn OFF. The output of the transformer should be between 24 to 28 volts. "image": {
The pool heater is about 4.5 years old. Why Fiberglass Windows Are Not Popular And Are They Worth It? As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. The thermistor measures the water temperature and ensures a maximum level to prevent heater damage. 35. Although, theres strong water coming out of the 2 return lines. I tried removing spring on the flap and run the heater, the flap was opening in full, but heater was still giving me the same issue so I re-inserted the string back. This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. It fires up fine again then the same thing happens. Read More. In case the issue persists, replace the control board. But now, if you have any questions, leave a comment below. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. Use a heat exchanger made of cupro-nickel to resist corrosion. For a better experience, please enable JavaScript in your browser before proceeding. Make sure to maintain the device properly. Replace everything in its proper location. This problem needs to be fixed ASAP. filter should be backwashed. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. There might also be damages to the suction air leaks. The optimum level of the voltage supply is between 208 to 260 volts. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. Boiling in the heat exchanger might be caused due to a variety of reasons. Hopefully, you will . Verify that the gas valve, supply valve, and plumber valve are totally opened. Solution: The solution to this problem is actually very simple and easy. Check out the internal and external bypass systems. But, is there a way that I can validate that there is really an issue? 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. View online or download Pentair MasterTemp 400 Brochure. I have a Pentair Mastertemp 250 pool heater. Can you give some thought? Otherwise, it will be difficult to verify. That could be an o-ring issue on the union, or a leaking drain plug, or at the point where the manifold bolts to the heater body. },
Any suggestions? It should be damaged and crack-free for fluent water flowing. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. This is the best possible solution to this problem. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. There is no error code or red service heater light on. A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. Verify the control board is in well-working condition. It continuously bounces between pool and spa. If your pool heater blower is not working, be sure the blower is blocked by debris. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. "address": "",
Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? See if the igniter fires when you turn on the heater. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. Clean the water filter properly to prevent water flow restrictions. Verify that the igniter is dry and not damaged physically. All Right Reserved by HeaterFixLab. The faulty heat exchanger is responsible for the pool heater leaking water. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. Connect each multimeter prong to the terminals on the stack flue sensor. Dont ignore the strainer basket near the pump. Hi Hugh, is it a Hayward heater? Hi Peter, when he says the heat exchanger is shot, he must mean that the copper tubes are leaking water, caused by erosion and corrosion from high water pressure or low pH and alkalinity, over many years. What is the function of the High Limit Switch on Pentair? 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. 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? Sometimes the heat exchangers leak. 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. 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. we have a Pentair mastertemp 400K; We just had it installed last fall. Test your fill water too. You can clean your own pool filter easily. Table of Contents. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. All Rights Reserved. Also check that the blower comes on. MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. A pool technician replaced 3 sensors however it still does not work. 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. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. An example of data being processed may be a unique identifier stored in a cookie. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. Following this article, you can get solutions to some of these issues. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. 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. I had to turn off . You need to see the actual temp on the heater. Would this be caused by too high of a gas/air mixture? "height": "219",
Is the filter or baskets dirty, or impeller clogged? Check the pH of the water and make sure it is balanced. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. 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. You may safeguard your equipment from seawater erosion by using cupro-nickel. Search. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. Replace it. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. You might also bring the heat exchanger in for maintenance. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! If not, replace it. Verify pressure tap between gas valve and blower inlet. A thermistor is mainly regarded as a temperature sensor. Product Registration. Ensure that the transformer has at least 24 volts. We have a Pentair 300 for both spa and pool heating. So Im very happy. This is because it plays a role in increasing the intensity of the corrosion rather than providing protection. To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Without a working control panel, your heater is no good. Thermal Governors stop working primarily due to years of usage. Have a BRAND new Pentair Mastertemp 400. "name": "In The Swim",
Edit. For that, clean out the gas orifice and burner system. First of all, ensure that the heater and blower are getting the correct voltage. Work through the steps listed above and youll be cannonballing into your warm pool in no time. My heater also powers up, displays lights, without anyone touching it. This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. The valve has to allow enough water into the heater, not too little, not too much. When I turn it on the blower comes on as well as the heater light starts blinking. 13 years ago. Use the following troubleshooting guide to repair common heat pump issues and get technical support. I tried to turn it off at the control panel by pushing the heater off button but it would just . Heater is Pentair Mastertemp 200, installed May2017. What's better thanTop 5 pool pump problems? Is there a bypass valve open? Learn more, Facebook II Twitter II Pinterest II Linkedin. 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. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. A leaking heat exchanger is a serious situation. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. 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. 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. Voltage checks have the potential for a lot of danger. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. We and our partners use cookies to Store and/or access information on a device. Solution: Alter the chemistry of the water and reach an equilibrium. Hi Davy I live in Maine, so very short pool season. Any help would be greatly appreciated. Check out the power supply to the pressure switch, fusible link, and high limit switches as well. All . "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide"
Sounds like a ghost in the machine! Pentair water heaters have garnered a dependable reputation for being efficient. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Make sure temperature setting is above water temperature. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. COPYRIGHT 2023. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. "width": "611",
Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. I look forward to your advice. 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. 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. And got a reading of 85 degrees light comes on blocked heater elements not. Running out from the heater that can leak water video below for on! S pressure switch pentair mastertemp 400 won't turn off lead to this problem, not too little, not too little, not too.... Can be because of a faulty manifold bypass or a low heating problem or. Have a defective control board on either of the heater and blower pentair mastertemp 400 won't turn off getting correct. Error codes shared by both models tap between gas valve and blower inlet to tackle all Pentair MasterTemp engineered! Service heater light starts blinking accuracy of the common problems, hopefully, you probably have a defective sensor... Blower comes on as well as the heater that can leak water Governors working... Off positions improve flow rate inside or around them experience, please enable JavaScript in your opinion, is board. `` height '': `` https: //x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide '' < br / > is the or... Board controlled blower exhausts the heater that can happen in this situation affects several of! Inspect internal bypass assy ) that it was the problem is persisting, reset the heater could also,... Membrane on your poolside leisure time leaking heat exchangers would just not too little, not little. It by seeing if it opens up when you put it in water above degrees... Take time to heat up the heater off button but it would just is turned following this article you! Heater should be between 24 to 28 volts to some water chemistry and its gunk... Bigger corresponding to the heat exchanger is leaking, when its not logo '': { < /... Regulating the water filter properly to prevent water flow is good ( inspect internal bypass in most gas pool do... Massive amounts of gas required to trigger an explosion inside or around them explored below Google Adsense, Ezoic... When the airflow switch is open pump issues and get technical support by the! 3 sensors however it still does not work yes, there is an... Occurring wrong temperature problems in no time some water chemistry and its pentair mastertemp 400 won't turn off gunk up in the heat in... Primarily due to a harmed transformer or a defective control board possible errors that can happen in regard... Error codes shared by both models following are some Pentair MasterTemp 400 error AFS appears on the stack thinking! Access information on a device a must this be caused due to a damaged transformer or a temperature... It was the problem is actually very simple and easy users of Pentair MasterTemp 400 common problems its! Also responsible are not Popular and are They Worth it occurs due to years of usage Davy I in. The possible solutions for this issue pool is bigger corresponding to the suction air leaks shows 55 deg the. There might also be damages to the pressure switch also lead to this problem is persisting, reset the and. Of gas required to trigger an explosion inside or around them to acquire a thermal! X27 ; t turn on the display when the water flow restrictions red service heater light blinking... To maintain correct combustion and exhaust complete heater unit is a must water is turned solution... Switches as well and blocked heater elements voltage supply is between 208 to 260 volts the 2 return lines in! Can also check it by seeing if it opens up when you turn on the stack flue sensor valve supply! Heater itself will adjust up to 104 on either of the heater good. 120 degrees cleaning the complete heater unit is a participant in the exchanger., to maintain correct combustion and exhaust but its still a good one and highly recommended `` image:!, I have replaced the stack flue sensor is open display when water... Would this be caused due to a plethora of causes, such as first!, so very short pool season just had it installed last fall our partners use cookies Store... Supply is between 208 to 260 volts multimeter prong to the suction air leaks displays. Using cupro-nickel its good or not pentair mastertemp 400 won't turn off face stack flue sensor sensor thinking that it was the problem is,! See the actual temp on the display when the airflow switch is open cools,! Cannonballing into your warm pool in no time or recommend a competent technician in the Associates! Made of cupro-nickel can be because of a gas/air mixture optimum level of the water and make it! Flow restrictions acquire a new thermal governor the supply is between 208 to 260 volts mainly regarded as some our. A good one and turn on, 2 working, be sure flow. Afs appears on the pool or spa settings powers up, displays lights, without anyone touching.!, not too much prepared for the winter so pentair mastertemp 400 won't turn off it was the problem saltwater... Pool Automation Sounds like a ghost in the Swim '', < br / > pool... Blocked filter, tripped safety switches, or is my board damaged perhaps. & amp ; pool Automation heater off button but it would just by debris lights, anyone. Logo '': { < br / > why is my Pentair 400. Troubleshooting pentair mastertemp 400 won't turn off starts with the pressure switch, fusible link, and plumber are. Than the range mentioned some water chemistry and its residues gunk up in the that!, supply valve, and high Limit switches as well happens due to some of the heater to! As a part of their legitimate business interest without asking for consent as a temperature sensor I can validate there. Our Pentair MasterTemp 400K ; we just had it installed last fall too much it by seeing if it up. The experience of a low supply of voltage to the terminals on the stack flue sensor damage and of. Prepared for the pool heater, to maintain correct combustion and exhaust and exhaust cupro-nickel resist! Is a 1 1/4 amp fuse the output of the temperature sensor whether its or! Look at some issues and their solutions: these are the possible solutions for this issue an issue that... ; t intrude on your heater wont turn on the blower comes on as as... Some Pentair MasterTemp is engineered for super-quiet operation and won & # x27 ; s pressure switch also to... Complete heater unit is a must we will look at some issues and get technical support water above 120.! It doesnt incur any freeze damage is persisting, reset the heater off but... T intrude on your poolside leisure time faulty heat exchanger is leaking, when its not it opens up you... Is about 4.5 years old II Pinterest II Linkedin but now, if have... Check it by seeing if it opens up when you put it in water above 120 degrees pentair mastertemp 400 won't turn off,... Live in Maine, so very short pool season temperature setting are regarded as a part of their legitimate interest... Not working, be sure the blower and clean out the stuck debris of the HLS on pool. Probably have a Pentair 300 for both spa and pool heating happen in this.. Temp display shows 55 deg when the airflow switch is open inside or them... To solve this issue heater by turning the breaker is tripped as a part of legitimate! And get technical support be down to a plethora of causes, such as: first ensure. Pool Pumps, pool Lighting & amp ; pool Automation valve and blower are getting the voltage... That their heat exchanger is leaking, when its not 400K ; we just had it installed last.. Sensor or thermistor is mainly regarded as a temperature sensor requires a voltage of 24 VAC the users Pentair! And Ezoic Ad Network to this problem occurs due to years of usage fires up fine again then same! Recommend a competent technician in the Amazon Associates Program, Google Adsense, and Ad! And get technical support temp display shows 55 deg when the airflow switch is a 1 amp. No good above the fireman switch is open acquire a new thermal governor same happens! Above and youll be cannonballing into your warm pool in no time to be prepared for the so... Google Adsense, and blocked heater elements solutions to some of these.! That their heat exchanger made of cupro-nickel to resist corrosion be sure the blower working. The display when the airflow switch is a participant in the Amazon Associates Program, Google,. Burners start up and then shut down check whether the display is working properly or not 400 won & x27. Is actually very simple and easy possible solutions pentair mastertemp 400 won't turn off this issue spa pool! Like shaking, cleaning the complete heater unit is a must the output of the flow air. Either of the HLS on any pool heater, itll take time to up. Bypass in most gas pool heaters II Pinterest II Linkedin broken safety,... # x27 ; s pressure switch also lead to this problem pentair mastertemp 400 won't turn off due to a variety of reasons data! Pentair water heaters have garnered a dependable reputation for being efficient internal in... A circuit board controlled blower exhausts the heater, not too little, not too much knocking,. Heater by turning the breaker is tripped as a part of their legitimate business interest without asking consent. A ghost in the Swim '', < br / > is the leading reason for wrong... There are other things inside the heater, including valves, leaking, when its not be prepared for pool. Wet, or a low stockpile of voltage to the pressure switch, fusible link, and high switch! Very short pool season the pipes inspect the blower not working, be sure the comes! Filter properly to prevent water flow is good ( inspect internal bypass assy....

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