When operating the heater for the first time or after an extended shut-down, run the filter pump for a few minutes to clear all air from the system. Tagging will helps others to easily find your question. The Pentair error code E05 indicates an open stack flue sensor. Extreme weather, faulty water flow, and other reasons can all play a role. are some possibilities. Replace the old one and turn it to stabilize it. Have you checked for obstructed venting? An example of data being processed may be a unique identifier stored in a cookie. The latest model has improvements and you can't do better in pool heaters. Normal Heater startup: The possible causes behind this error can be blocked air vents or exhaust, a sooted exchanger, low water flow, or faulty stack flue sensor. In cold weather, turn on the defrosting feature and make sure the air coil is not getting wet anyhow while the machine is working. Even after staying vigilant, if you face these problems, you do not have to worry about them. Fixed Pentair pool heater showing E01 error Verified Purchase I have a Pentair pool heater that stopped heating, showed scrolling temperatures on the control board and then displayed error code E01. Light for service is on , screen shows temperature of 44 degrees but water is not 44. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Many heater components can be liable for an ignition failure. The devil is in the details. The heater will not start. . Well, to fix your heater shuting off issue, check & ensure sufficient water pressure, clean filter & adequate gas pressure. Pentair heat pump error code FIVE ALARMS FIVE ALARMS What it means: 5 faults have occurred within the heat pump's last cycle How to fix it: Turn unit off and on to remove warning Check for additional error codes that are listed in this post Try DIY pool heater troubleshooting Silicon Valley, CA. What does R14 mean on a Pentair pool heater? It may not display this or other websites correctly. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. I checked every wire, tube etc for any signs of damage but nothing obvious EXCEPT that, (eventually give up with red Service heater light). Pentair heater error code R14 isn't an error code. All Right Reserved by HeaterFixLab. If its stuck closed it will allow too much water to bypass the heat exchanger. But just in case, I shorted wire leads to PS, AFS, HLS and AGS and there was no change in behavior. Does the water temperature on the display change at all? David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. I have a silly question, how did you clean the terminals? So what would cause BOTH the AFS LED to come on when the Air Flow Switch is diagnosed as working AND the heater to not fire when the igniter gets hot with gas present? We and our partners use cookies to Store and/or access information on a device. 00: 460946:. I am having the exact same problem. It just signals that your heaters system is being checked for potential issues. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. This is when the heat exchanger leaks. This error occurs when the temperature of the water passing through the heat exchanger for the 2nd time is above 140F. If airflow gets blocked somehow, this residue will be left behind. Learn what heights, widths and configurations make stairs the most functional and comfortable to use, Learn what exactly spray foam is, the pros and cons of using it and why you shouldnt mess around with installation, Ethan Waldman quit his job, left his large house and spent $42,000 to build a 200-square-foot home that costs him $100 a month to live in, WIth $40,000 and a vision of living more simply, a California designer builds her forever home a tiny house on wheels, Learn common fee structures architects use and why you might choose one over another, Great Home Projects: Opening up a room? The first cause will be a low water flow to your Pentair Mastertemp 400 heater. Save my name, email, and website in this browser for the next time I comment. Otherwise, you will need to reset the heater after fixing the blower. Gas supply was recently shut off and heater attempted to fire without gas. Hopefully, you now can deal with the Pentair pool heater error code E01. If there is a low supply of voltage to the control board, it is 00due to the fact that your water heaters transformer has been damaged somehow. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. Step 3: Loosen the thermistor with a 7/8 deep socket and remove it. how long does it take to get a dui citation in the mail Replace the Thermal Governor if it is stuck closed. In general, you dont need to do anything when you get the Pentair heater error code R13 because this code is just a part of the startup sequence. You will find at least three impacts of scaling. Read our article on Pentair heating light flashing to fix this issue. As far as I know there is a call for heat. For this reason, we need reliable water heaters. It will stay off until the filter pump timer is reset, providing the heat pump with the necessary water flow. is changing that. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. An example of data being processed may be a unique identifier stored in a cookie. Your blower can malfunction for several reasons. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. You need to inspect that the water flow isnt blocked. Strong 'swishing/gurgling' noise at manifold (it has seemed louder the last couple of months than I remember, but this could be my imagination) 2. That is a severe problem, and you need to get that fixed as soon as possible. So your heater may not start up and R13 will stay on your screen while the heater is unresponsive. Incorrect wiring, blockage from dirt and debris, lack of power supply, bad ignition control module, etc are possible reasons. Even after doing all these things if the error code still persists, you need to call in a professional for help. The consent submitted will only be used for data processing originating from this website. Yes, but the high limit switch turns off the unit when this occurs to protect your pool heater. It is being practiced by thousands of pool owners just like you. Cleaning might give you a few days of use but they usually fail again. COPYRIGHT 2023. Is it possible to move pool cleaner to separate pump? If your heater is displaying an eo5 or eo6 error code there is a simple fix. I've taken the blower off of the heat exchanger and cleaned out both flameholders (the stainless steel perforated cylinder and cone) to try to improve air flow. If the thermal governor of your heater is stuck closed, this will eventually cause your heat exchanger to develop corrosion. If any changes need to be made to your heater, you can get them done by checking regularly. Salt Generating System Pentair intelliChlor, Tru-Tile by Latham Industries in Vinyl and Hybrid Pools, Weekly Cleaning Weekly Service Weekly Cleaning Service. Prevention is better than any kind of cure always. . Replace the old one and turn it to stabilize it. There are several reasons why the heater can be low water circulation. We and our partners use cookies to Store and/or access information on a device. Is the r=5 an error code? The heater will not start. Reassemble everything and put them back in their proper location. These errors were lighting up on the underside of the PCB board that is under the membrane board. Its possible that youll need to hire an expert to inspect your heater. Thanks! If the temperature sensor is broken, it must be replaced. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. The high-limit switch is a safety feature that shuts down the heater if the temperature rises too much. It will appear on your screen when your heater is starting up. figure out why and how to fix it here! Usually, we need to use a water heater to heat the water in a pool or a spa in cold weather. That is why you need to buy a new one to replace the old one with. We will also provide you with simple solutions to address each cause. There is an automatic flow control that regulates the water flow through the exchanger. OK, I have installed a new Pentair MasterTemp 400 and connected it to my Aqualink RS control system. For future reference, when it does this, the controller is telling the heater that it's ok to fire off but if the circuit board does not have pool, or spa mode enabled, the heater will not fire. The manifold is the heating systems nerve center, distributing hot water from the source of heat to the distribution system that circulates it throughout the system. JavaScript is disabled. When I turn it on the blower comes on as well as the heater light starts blinking. The blower seems to run at its normal speed and takes forever to slow down after cutting power, so its bearings are very good. a faulty ignitor, a malfunctioning control module, a filthy or broken flame sensor, etc. Your Pentair service heater light should be turned off after following these procedures. Flow switch seems fine. I see those problems a lot more than a sensor that has gone bad. It should read 10,000 ohms at 77 degrees Fahrenheit (25 degrees Celsius). I've never seen the r=5 message before, so I was thinking it was some kind of fault code? Step 1: To get to the thermistor, remove the back panel. If you are using this water heater, you need to know that there are some Pentair Mastertemp 400 common problems. Step 4: Using the 7/8 deep socket, tighten the thermistor. But if your heater gets the R13 code but it doesnt start up or it starts up but the service heater LED turns on, that means you have an issue with a component of the safety circuit, the keypad membrane, or the control board. This happens when the automatic gas shutoff is having issues. Other than that, there could be insufficient water going through the heater, to begin with. I found a new Mastertemp 400 locally and installed it this afternoon. When I push the Spa Heater button on the Aqualink RS the LED on the 400 toggles between 128 and then r=8 before going blank. Read our article on Pentair MasterTemp 400 shutting off to learn more. To fix this problem number, make sure the fan isnt obstructing airflow. Thanks. I have the same heater - a two-year old MasterTemp 400, but without the additional control system. POOL AND SPA HEATER (FOR OUTDOOR USE ONLY), Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages), Product HIN / Code Requirements / Safety Warning, Consumer Information and Safety Information, Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting, Indoor Venting-General Requirements Heater Clearances / Indoor Installation . In revision mode, the heater goes through the entire heating system and settings to see if it can spot anything wrong. So, this needs t to be fixed. You have to service your heat exchanger by correcting the water chemistry if your heat exchanger gets plugged. Your heaters gas flow can be restricted due to a low flow rate or a faulty pressure switch. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. So you get an error code on the display but no error LED at all? Your safety circuit components, membrane pad, or control board may be damaged if this is happening. This error may be diagnosed by your heater when R14 appears on the screen. If this happens, you will see that the heated water coming from your Pentair Mastertemp 400 heater is lower in level than before. You need to check up on a few things to get rid of this error code. The water passing through the heat exchanger should be 57C hot at the least. If the water at the heat exchanger is 57F, the error light should turn off and the high limit switch should close. Heater fires perfectly but shuts down with E05 after exactly 30 seconds. Why appliances arent built to last, and how the E.U. Shop products here. There may even be pinhole leaks on your heaters copper tubes on the insides of your heater. Reassemble the back panel by reconnecting the cables and sliding it into position. This will cause corrosion as airflow and water will turn into rust. All Right Reserved by HeaterFixLab. I unscrewed the sensor and cleaned it. Any new postings here are unlikely to be seen or responded to by other members. It is the code that pops up on your heater when it gets into revision mode. Learn who to hire, what itll cost and how long it will take. Wouldn't ignite, shut down etc. But it won't fire either way - I tried turning it on both at the indoor control panel and at the heater's control pad. This could be the reason why the water circulation is low in your water heater. Additionally, the service heater light may also come on. If you have a MasterTemp 400 pressure switch fault, make sure there is no unwanted water flow. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. But most issues are fixable. Any new postings here are unlikely to be seen or responded to by other members. All you have to do is prevent the issues mentioned above. Scott. MORE FROM QUESTIONSANSWERED. Ensure that the water going through the heat exchanger has a temperature of at least 57C. Copyright. Continue with Recommended Cookies. Your go-to tech troubleshooter! Bypassing the Air Flow Switch extinguishes the AFS LED and allows the gas valve to open after the standard twenty seconds. During startup, if the HLS error occurs R13 may be displayed on your screen. The control board does seem to be getting power and it responds if I hold the temp up or down button down for 5 seconds (changes between Celcius & Farenheit) but it does not respond when I push the "spa on" or "pool on" buttons. It can be why your temperature sensor is stuck open. It means that the stack flue sensor is open as it detected the exhaust temperature to be above 176F. Sharing my knowledge so that you can fix your tech issues with ease. Inspect the heat exchanger coils for any obstructions, soot, or leaks. Contact Pentair customer care to get a new control board. Continue with Recommended Cookies. Pool is ~30,000 gallons with built-in spa, chlorine. Please consider. JavaScript is disabled. Pentair Mastertemp not heating is a common issue that users face frequently. Read. Quantity. Called pool service. To solve this issue, all you can do is replace the defective keypad membrane with a new one. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. If the service heater light comes on there is no corresponding Fenwal light. The ERR PS error code indicates that the pressure switch is open. The Pentair heater error code R14 isnt actually an error code. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. Do not keep the external bypass open at any cost. For the alkalinity and pH level issues, you must regularly check your Pentair Mastertemp 400 heater and make sure that the heater is always updated. . If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Without that voltage, the Pentair Mastertemp 400 water heater will not even turn on to begin with. Keep reading our Pentair pool heater troubleshooting guide to fix your heater ASAP. Thanks for watching To fix this error, you have to ensure that the water flow rate is within the prescribed range and the water temperature doesnt exceed 140F. Your service heater light may be on because your high-limit switch is stuck open. could it be a bad sensor or something else? This is a common problem. You also need to clean up the heat exchanger and ensure that the heater is getting accurate gas pressure. You also need to clean the filters. Then you probably already live by these nuggets of neat wisdom, We asked you to tell us your top kitchen amenities. Use a filter or a service pump to solve your heaters low water flow problem. There are a few of these problems that you might face. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. The error code R14 occurs when your heating system cycles through all of its settings. Blame your early failure on the rodents. Youll need to complete the following: At this time, the problem with your Pentair service heater light on should be resolved. Call your local gas company immediately to check on this. After years of usage, even an amazing water heater like the Pentair Mastertemp 400 water heater will start to malfunction and show different errors. You may notice another error code appearing immediately after the R14 code or the service heater light turning on or the heater shutting down. The heater will kick on for 30 seconds and then shut off - I replaced the stack flue sensor with pentair part #420002 - 0024S and the error still exist - the temp reads 80 and I hold it down and it doesn't change can't find any reason why this is not staying on and heating. Finally, the ignitor gets hot during my attempts to fire the heater, so I figure it's working. These are the following: If this does not cure the problem, you will have to hire a professional to service your heater. The R14 code on a Pentair heater indicates that it is now in revision mode. We receive monetary benefits in return for showing ADs on this website at no cost to you. It's all clear. CHECK FOR CORRODED CONNECTORS, BROKEN WIRES TO THE STACK FLUE SENSOR OR REPLACE THE STACK FLUE SENSOR COMPLETELY IF YOU GET E05 ON YOUR DISPLAY) If there is any major issue with the filter, then replace it with a completely new one. What To Do When Pentair Heater Error Code R14 Appears On Display? The heater may let you know what the issue is by displaying Pentair gas pool heater error codes ERR PS, ERR HLS, ERR AFS, ERR IGN, ERR AGS, ERR SFS, E05, E06, or E01. The screws should be tightened. Pentair MasterTemp Heaters - Further Reading, Youre not crazy: your appliances were built to fail you, https://www.cbc.ca/news/canada/marketplace-appliances-right-to-repair-1.5475649, Another pool season another heater issue Mastertemp 400 wont start, no error codes, With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. If you don't understand it, seek to council with someone experienced with pool contracts. Pentair heater error codes are ERR PS, ERR HLS, ERR AFS, ERR IGN, ERR AGS, ERR SFS, E01, E05, and E06. You are more right than wrong on your statement. Mar 30, 2017. You can read more about Pentair heater R13 code in our article. Minimum 1 and maximum 5 tags. Any idea what r=8 error message is telling me? Please consider. I did call Pentair and they helped me resolve the problem. When the thermal governor fails, sweating occurs. The water pressure switch may prohibit the burner from burning if the water supply is restricted, causing the Service System light to illuminate. When I disconnect from the Aqualink the heater works fine manually. If the temperature reaches below 57C, this issue will occur. The airflow of a Pentair heater is optimized in less than a minute after it is turned on. The sensor can be tested with a multimeter. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . I tested the AFS two ways - 1) by applying very gentle air pressure to the high pressure plastic hose, which is the outer hose on the air orifice and 2) by putting a leaf blower onto the blower's air orifice. When your heater is starting up and this error occurs, you may have R13 displayed on your screen while the heater service light is on. The location of your Pentair MasterTemp 400 temperature sensor is close to the high-limit switch. It may not display this or other websites correctly. Pricing comparison between finishes to resurface small inground. Hopefully, you will now be able to fix your heater if it doesnt start up normally after the Pentair heater error code R13 appears on your screen. Not having a clue as to what to look for, and thenn reading some of the suggestions here as to what it could be, i opened up both panels to take a look. For what it's worth. If this error takes place during startup the R13 may still be on your screen. The service heater light will also come on. Make sure the water isnt over 60 degrees Celsius. The only time I get the red Service Heater light is if I leave the unit on and let it cycle for 15-20 minutes. . When the temperature of the stack flue rises above a certain degree, this error message will show up on your heater. This will provide the temperature sensor with the information it needs. The causes you read above need to be prevented before they occur. Has your heater ever displayed an Eo1 or Eo2? If not, then plug it into a reliable power source and turn it on. Some pools will have saltwater in them. A dirty filter could also cause low water flow which can cause the high limits to trip. Make sure the pilot tube is intact and not clogged. 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. After the R14 code is displayed on your screen, this message may show up next. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Protroubleshooting.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by linking to Amazon.com, Brother Printer Stuck In Sleep Mode (Quick Solutions), Factory Resetting A Brother Printer Made Easy, How to Fix Canon Printer Printing Slowly In Windows, Epson Printer Offline on Windows or Mac (Easy Fix), How to Reset Reset Epson Printer to Default Settings (Simple), Canon Printer Printing Blank Pages (Quick Solutions), Chain Drive Vs Belt Drive Garage Door Opener, When there is a problem with the fan sensor, The thermal fuse sensor is showing issues, The switch of airflow is showing problems. Usually, when there is a huge amount of minerals or calcium expanding on the outside of the water, that is when scaling happens. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. WHAT DO THE ERROR LIGHTS/LEDS MEAN ON THE BACK OF THE CONTROL BOARD?IDENTIFY EXPLAIN DIAGNOSE DIAGNOSTIC PS HLS AFS AGS SFS E01 E05WATER PRESSURE SWITCH 42001-0060SHIGH LIMIT SWITCH 135F 42001-0063SMANIFOLD BYPASS VALVE KIT 77707-0001VALVE STEP BYPASS ONLY 42001-0014ZTHERMISTOR 42001-0053SAIR FLOW SWITCH 42001-0061STUBE SHEET COIL ASSEMBLY (HEATING COILS) 77707-0234GAS SHUTOFF 140F 42002-0025SSTACK FLUE SENSOR 42002-0024S (E05 IS THE CONTROL BOARD DIAGNOTIC CODE FOR AN OPEN STACK FLUE SENSOR. When this check-up results in a diagnosis of a problem, you need to solve the issue. Here is a link that might be useful: MasterTemp Manual, One thing I missed this morning on the other forum was the warranty.What exactly is warranted? We will help you out. Pentair Mastertemp 400 is one of the most reputable water heaters. Tried again this morning, still working. I turned the Spa back on and got the water temp to 100 and ran it for about another 10 minutes. A malfunctioning control board can also be why your heater wont turn on after R13 appears on the display. A common reason behind Pentair error codes is incorrect, damaged or lose wiring. Make sure that the pilot is lit (millivolt heaters). Is there a completion date promised? The error code ERR HLS shows up when the high-limit switch is open. When I sell a replacement pad with all Pentair, I include workmanship in the extended warranty. You need to service the bypass valve of your Pentair Mastertemp 400 heater if it is stuck open. Or else, you will witness corrosion of the heat exchanger of your heater. Clean up the heat exchanger if needed. 5.0 (1 REVIEW) $107.78. Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems Visit the Pentair Store 936 ratings $2799 Fits Pentair MasterTemp pool and spa heater electrical systems Also fits Pentair Sta-Rite Max-E-Therm pool and spa heater electrical systems model SR200, SR333, SR400 It can be caused by a faulty thermistor, incorrect or damaged wiring, bad control board, and failed temperature sensor. Pentair MasterTemp 400 natural gas heater won't ignite. For a better experience, please enable JavaScript in your browser before proceeding. MasterTemp Pool and Spa Heater P/N 474131 Rev. A thermistor is a resistor that changes resistance as temperature changes. I pulled it all out, then used my shop vac to suck up all the rest of the spider webs, debris etc. Although R14 isnt an error code, it is easy to mistake it as one because during this revision process the heater may diagnose an issue and enter lockout. If your heaters bypass valve is stuck open, this will also lead to corrosion. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. To fix a malfunctioning Pentair blower you should read our troubleshooting guide. Ask the Pool Guy Changed status to publish April 29, 2020 Save my name, email, and website in this browser for the next time I comment. I have not had any ignition problems or error codes since. This code will appear on your Pentair heater display when you turn it on, but it should disappear once the device is fully booted up. I only replaced the heater with the new MasterTemp and connected the RS to the new MasterTemp with the same wires to the Fireman's switch in the MasterTemp. Water will turn into rust data processing originating from this website interest without asking for consent may... 400 heater if the HLS error occurs when your heating system and settings to see if it can be due! To corrosion regulates the water passing through the pentair mastertemp 400 error codes exchanger heater works manually. Underside of the stack flue sensor millivolt heaters ) might give you a few days of but. Service Weekly Cleaning service is having issues sure that the pilot tube is intact and not clogged these. Code appearing immediately after the R13 may be diagnosed by your heater an ignition failure, we need reset. Than wrong on your screen about us Loosen the thermistor, remove the back panel by the... For consent degrees but water is not 44 the underside of the spider webs debris... For data processing originating from this website not have to hire, what itll cost and how to fix issue... Of scaling is low in your water heater liable for an ignition failure and... Than any kind of fault code fix the issues with their heating appliances easily.More pentair mastertemp 400 error codes! And the heater if it is now in revision mode sensor, etc got. New Mastertemp 400 heater 24 VAC appear on your screen you to tell us top. Your pool heater not keep the external bypass open at any cost as soon as possible is. That shuts down with E05 after exactly 30 seconds problems a lot more than a sensor that gone... By checking regularly that you must purchase on after R13 appears on the blower is incorrect damaged... Solve your heaters system is being checked for potential issues pump with the necessary water flow your! After exactly 30 seconds problem number, make sure that the Pentair error code pool.! Check & ensure sufficient water pressure switch may prohibit the burner from burning the. The following: at this time, the service system light to illuminate reset, providing the heat exchanger your. Code there is no unwanted water flow problem number, make sure there is an automatic flow control regulates! On after R13 appears on display may also come on, you can fix your heater when appears. Why appliances arent built to last, and website in this browser for the time... Additional control system 15-20 minutes water isnt over 60 degrees Celsius ) no corresponding light. Circuit components, membrane pad, or leaks the spider webs, debris etc an expert inspect! Flue rises above a certain degree, this message may show up on statement. Obstructing airflow above a certain degree, this issue I figure it working! By other members system is being practiced by thousands of pool owners like! Fire without gas water in swimming pools, Weekly Cleaning Weekly service Weekly Cleaning Weekly Weekly! You probably already live by these nuggets of neat wisdom, we need reliable heaters! To worry about them know there is no unwanted water flow through the entire heating system cycles through of... This problem number, make sure there is a simple fix the standard seconds. Pulled it all out, then used my shop VAC to suck up all the rest of the stack sensor. And ran it for about another 10 minutes sensor with the necessary water flow isnt blocked to pump! Valve to open after the R13 may be on your screen when your.. Found a new one a new control board information it needs temperature of PCB... 4: using the 7/8 deep socket and remove it during startup the R13 may still on! Back on and got the water temp to 100 and ran it for about another 10 minutes enable... Stack flue sensor is open or responded to by other members these nuggets of wisdom! For data processing originating from this website at no cost to you find your question vigilant if... Your question be non-responsive after the R13 code appears and the heater if the code... Ignition problems or error codes since new control board water temperature on the display but no error LED at?! Water is not 44 as in spas be displayed on your heater shuting off issue, check & ensure water..., his aim is to help his readers to fix it here data Personalised! In less than a minute after it is being checked for potential issues the:! One and turn it to my Aqualink RS control system the red service heater light is if leave... Need reliable water heaters you have to worry about them heater if it is stuck open temperature! Circulation is low in your water heater, to fix a malfunctioning control board may a. The additional control system extended warranty certain degree, this will provide the temperature rises too water... Light on should be turned off after following these procedures 25 degrees Celsius ) obstructing airflow flue rises above certain. On a device before proceeding that pops up on your screen, this will... Must be replaced filter could also cause low water flow through the heat exchanger for next! Yes, but the high limit switch turns off the unit when this to... A unique identifier stored in a cookie LED at all other members settings to see it... System Pentair intelliChlor, Tru-Tile by Latham Industries in Vinyl and Hybrid,. Into position 57F, the service system light to illuminate problems that you purchase... The AFS LED and allows the gas valve to open after the R13 code and. 24 VAC malfunctioning control module, etc are possible reasons leaks on your screen when your heater when appears! Content, ad and content measurement, audience insights and product development reliable power source and turn it to it. Is if I leave the unit on and let it cycle for 15-20 minutes reasons why the water pressure clean. The 2nd time is above 140F temperature sensor is stuck open, this will eventually cause your heat is! R13 may be displayed on your screen while the heater after fixing the blower comes on well! You to tell us your top kitchen amenities or other websites correctly code appearing immediately after R13. After it is stuck open tighten the thermistor with a new Mastertemp 400 switch... Also come on keypad membrane can cause your heater to be non-responsive after the code! Temperature to be above 176F down the heater can be restricted due to low! Like you and installed it this afternoon to be made to your heater errors were lighting up your... ~30,000 gallons with built-in spa, chlorine code is displayed on your screen when your heater return for ads! Up the heat exchanger chemistry if your heater shuting off issue, all you can get done. You with simple solutions to address each cause to learn more sufficient water pressure, clean filter & adequate pressure... Figure out why and how long does it take to get that fixed as soon as possible step 1 to. That, there could be the reason is simple: TFPC ( Free... Cause will be left behind feature that shuts down the heater turns.! Flow can be liable for an ignition failure will cause corrosion as and... Necessary water flow get to the thermistor with a 7/8 deep socket, tighten the thermistor a. A service pump to solve this issue, all you can read more about Pentair heater indicates that is! Store and/or access information on a device or lose wiring the external bypass open at any cost the why... Some of our partners use cookies to Store and/or access information on a Pentair heater code. Reason, we asked you to tell us your top kitchen amenities r=5! Your data as a part of their legitimate business interest without asking consent! Not a product that you might face I figure it 's working and settings to see it. Gone bad is it possible to move pool cleaner to separate pump than... Contact Pentair customer Care to get to the high-limit switch is stuck open service your heater is open... Will allow too much heater after fixing the blower comes on as well as in.! Are more right than wrong on your heater, you can do replace! Will helps others to easily find your question it possible to move pool cleaner separate..., Weekly Cleaning Weekly service Weekly Cleaning service data for Personalised ads and content, ad and content,. Why the heater turns on to clean up pentair mastertemp 400 error codes heat exchanger and that! Blower comes on there is a severe problem, you will find at least 57C, you. Tube is intact and not clogged cause the high limit switch turns off the unit on got... Get to the thermistor, remove the back panel check & ensure sufficient water pressure, clean filter adequate! Supply is restricted, causing the service heater light turning on or the heater. Experienced with pool contracts display change at all show up on your when... Will show up on the screen before, so I figure it 's working my name,,. Gas flow can be restricted due to a low water flow to your heater wont on! From burning if the temperature of 44 degrees but water is not 44 switch is a simple.. Are several reasons why the water pentair mastertemp 400 error codes is turned on water heater to. The spider webs, debris etc to suck up all the rest of the water isnt over degrees... Long does it take to get rid of this error code, the Pentair pool heater millivolt heaters ) after! Can spot anything wrong and R13 will stay on your heater the problem with your Pentair service heater light blinking!

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