Now check out the heat exchanger as well. The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. 7. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. 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. Along with the fluctuation the heater cycles. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Posted on Nov 23, 2010. I sent the following on May 23, but received no reply/advice. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
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Its a fun combination of plumbing, wiring and gas. Mastertemp 250 Won't Turn On. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. If damaged, broken, or open, then replace it. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. If needed, hire or call a dealer to check it for you or take advice on necessary precautions or methods. Looking like might be bad control board? All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Replace it. When it used to work I would hear a big kaboom sound and now nothing. Heater will Not Fire Troubleshooting. I shouldve tried harder to learn how the pool works. The thermal regulator should be in fine working condition. 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 . Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. The other major reasons include faulty thermal regulators, failure of the high limit switch, and damaged ignition control board. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. "image": {
The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Glitches in the power supply are the root reason behind this. The thermister, sensors, and Board are working. So, here we will look at some issues and their solutions. But if the scaling is of a high level, it becomes detrimental to the machine. We have a Pentair 300 for both spa and pool heating. 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. Enquire about how much voltage is being supplied to the heat pump. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . To troubleshoot each of the above issues, the user needs a quick working solution guide. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. "@type": "ImageObject",
Ascertain that the blower is securely fastened in its location. My heater also powers up, displays lights, without anyone touching it. Using a multimeter, check the voltage measurement on the pressure switch. Any ideas on what the problem could be? Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. Possible Cause: Gas supply valve. "@type": "BlogPosting",
Ensure that the burner flame holder is grounded properly. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Connect each multimeter prong to the terminals on the stack flue sensor. Adding MA is a normal and expected process to help keep it in check. Solution: Replace the thermal governor with a new one. 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. The main function of the HLS on any pool heater is regulating the water temperature of the unit. It can even be dangerous. But now, if you have any questions, leave a comment below. If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. For that, clean out the gas orifice and burner system. The faulty heat exchanger is responsible for the pool heater leaking water. 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. When the heater tries but fails to start, it recycles. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. It doesnt sound like the heater is even trying to kick on. . The leak can be verified by you, if you lift the lid and inspect inside. The most commonplace for scaling to water is in water heaters, usually found in homes. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . Rust or red spiders can clog these up. "wordCount": "693",
Then, replace the faulty heater part or parts. The accuracy of the heater temperature display was increased as a result of this. Let us know if you need help finding it. Replace the defective heat exchanger if needed. Besides, the heater turning on automatically, the flame wont stay lit, the blower not working, low water flows, error codes, a defective control panel, dirty filter, noise, freeze damage, and heat exchanger problems can trouble you while using Pentair MasterTemp. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. Possible Cause: Pilot light isn't lit. No, you cannot. Check the wire going to the sensor and the sensor itself. Thank you Frank Check through it. We are a registered 501(c)3 non-profit that is funded by user donations. Table of Contents. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. This should not be a cause for concern, though. 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. 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. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. The heater does not ignite. 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? This also includes changing outdated copper tubes that sit on the interior of the machine. If still your heater doesnt go off, the gas valve is defective & you need to replace it. Have a pentair minimax heater, spa heater turns on for a few seconds then goes off, fan is on, blower is on, when heater fires I do smell gas and the air is hot. Above the fireman switch is a 1 1/4 amp fuse. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. Step 2: You then need to take apart the Max-E-Therm heater from the system. I only found 1 small stone stuck inside where the bypass is. Heat pump troubleshooting guide for Pentair pool heaters. Consumers who have purchased one of these products can get in contact with Pentair by calling 800-831-7133 from 8 a.m. to 7:30 p.m. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. James from TFP noticed something wrong with the 3-way valve into the my heater. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. Reason 3: Bypass Valve has remained opened. Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. I have a pentagram minimal plus heater and when I turn it on it stays on at low thermostat setting but when I try and increase it the heater kicks off and then wont come back on. Thank you. I love gardening a lot! In case the issue persists, replace the control board. "@type": "Organization",
It has a big role in controlling the heater operation. If your pool heater blower is not working, be sure the blower is blocked by debris. But, is there a way that I can validate that there is really an issue? Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. You must log in or register to reply here. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Burner pulsates or surges, especially on ignition. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Hi Emma, your heater has two thermostats, for convenience, to keep one set to spa temp and one set to pool temp, so you dont have to go back and forth, and try to remember the exact setting each time. Top 3 pool pump problems, of course! I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. It sits in a pool shed, with decent, not great ventilation. Learn more about pool care and repair. Smart connectivity via the Pentair Automation Systems enable you to manage pool . Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. "
If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. Hello. It means that the ignition control module has failed to ignite the heater. Your Pentair MasterTemp 400 wont stay lit? Verify that the gas valve, supply valve, and plumber valve are totally opened. 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. 3. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. An explosion requires a large amount of natural gas or propane to build up in one region. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. I have a MasterTemp 200. The temperature should always be higher than the pool heater. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. Pentair Mastertemp 400 Knocking Noise. ******************************************************** Like other pool equipment, pool heaters are prone to occasional malfunctions. Ensure that the pool filter is clean and clog-free. Replace with new igniter. Any new postings here are unlikely to be seen or responded to by other members. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. The automation system controls the heater and tells it when to turn on / off. A leaking heat exchanger is a serious situation. To get to the burner inside the heater, open it up. Look for a short between the Thermistor and the control boards wiring. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. The LED on the back panel indicated HLS. First, locate the thermistor of your pool heater. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. You could also take the heat exchanger for servicing. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. I dont see my trouble addressed. To Turn off Gas to Appliance. After long usage of the thermal governor stops working permanently, thus it cant be fixed by any means. Also, closed valve, fluctuating in power . So Im very happy. Thank you for your time and response. Dont stress! If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. Im not sure where to even begin. This also includes replacing any worn-out copper tubes on the machines interior. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. However, about 3 to 4 months ago it started turning itself on and heating the pool. Could the problem be with the flow or pressure sensors? Look at the blower if you hear a clicking sound. Articles and resources for swimming pool owners and DIYers. Alternatively, the temperature display can sometimes be quite inaccurate. The voltage is supplied to the transformer should also be in the same range. Maintenance goes a long way when it comes to heater shelf life. I tried to turn it off at the control panel by pushing the heater off button but it would just . If the supply valve is OFF, turn it ON. It does this over and over . Is this normal? When I turn it on the blower comes on as well as the heater light starts blinking. I do not see a procedure for not being able to use the OFF button. They can cost you up to 50% of a new heater. "logo": {
Check out the power supply to the pressure switch, fusible link, and high limit switches as well. "url": "https://blog.intheswim.com/"
No code is present. 4. Inaccurate Temperature Control or Display. 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. The pool heater is about 4.5 years old. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? },
Then i see a R9 code. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. If not, replace it. If it is not working, contact customer service to send you a new control board. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. See page 16 and verify the gas regulator is -0.2 wc. The solution to your heater issue is given in your previous comment. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. Check the pH of the water and make sure it is balanced. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-large-mobile-banner-1','ezslot_4',113,'0','0'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-large-mobile-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-large-mobile-banner-1','ezslot_5',113,'0','1'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-large-mobile-banner-1-0_1');.large-mobile-banner-1-multi-113{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. 6. It is also advised to change the entire system if required. my pentair mastertemp 400 heater will come on, pilot will light and heating green light comes on. A thermistor is mainly regarded as a temperature sensor. Not sure why a pool tech wouldn't replace the 2 wire remote . Replace everything in its proper location. Turn off power to heater for about 5 seconds, and turn back on. You only have to make sure that the burner is okay. Replace the bad ones. Finally, set the thermostat temperature correctly. Make sure temperature setting is above water temperature. The wiring diagram is given below for your reference. Replace the bad switches. This kind of damage can be very costly. I have a Master Temp 400 pool heater it does not turn on. The heater is a 400k model 460736 installed about 2006. The green spa or pool light comes on but the orange light for the heater doesnt come on. To allow water to pass through the heating system, make sure the valves are open. They said the 126 display was an error code. Pentair Mastertemp 400 Cycles On And Off, 11. With nearly 10 million pool pumps operating in, In our second in a series of pool parts pictorials, this time we take a high-res look at parts for gas pool, WhenHayward multiport valves start to age different problems can arise, some are just annoying and some are actually detrimental to the filter, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools, http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. It also could be a bad pressure switch, or switch out of adjustment, some have a small screw that can be turned to reduce/increase psi. 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. Do any diagnostic LED’s on back of board (AGS, AFS, SFS, HLS, PS . 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 stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Hi Lance, those are good ideas, first lets think about flow rate. Here we have elaborated on all the troubling points as well as the fixing steps. 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. Combustion appears normal, but the flame does not stay lit. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Did you replace both Hi Limit Switches? It will create all sorts of trouble from ignition failure to displaying the wrong temperature. "name": "In The Swim",
You may safeguard your equipment from seawater erosion by using cupro-nickel. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. The following are some of these issues and their solutions: These are the possible solutions for this issue. Change your transformer if the supply is lower than the range mentioned. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. 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. But just like any electronic device, there are some issues with the Pentair Mastertemp 400. 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. If not, replace it. Are you experiencing issues with your Pentair pool heater? Replace the bad thermistor. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. Operating Control Panel. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. {
Otherwise, the igniter is bad and you need to replace it. The valve has to allow enough water into the heater, not too little, not too much. Replace the bad igniter and defective flame sensor from your heater. Might charge under $500 to install. 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. Heater will not turn off and a 5F code with a flashing 1. First, you need to check on the wiring connection of the thermistor. 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. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? Fault Condition: HIGH WATER TEMP Alarm: Water . I think I am commanding only a 1 deg increase in temp, so although I can not see anything but Ad0 I will wait and see if the burner cycles down as the water temp warms the 1 deg or so. Clean up all the flue sensor orifices to ensure there is no grime on them. HI! The flame ignitor is firing but no gas flow. In case there is blockage in the heat exchanger, how do I fix that? Advice? I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Still have the power light lit but no other lights are lit. Safety Controls. Sometimes, a clogged water filter restricts the water flow and overheats the heater. "keywords": "",
Trouble shooting a mastertemp that will not turn on when buttons are pressed. and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! This problem needs to be fixed ASAP. I had to turn off . How does the thermistor work on the pool heater? 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). 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. There will be a reduced water flow if you see that the switch that detects pressure is open. Unscrew them to take the ICM off the heater. Manage Settings The control board is the culprit when there is no click. As an Amazon Associate I Earn From Qualifying Purchases. Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). I also cannot get the red up arrow to raise the temperature to raise the desired temperature. Step 2: Disconnect the system from the Max-E-Therm heater. filter should be backwashed. Basically, this problem occurs when there is no proper . Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . Test the resistance of the pressure switch. When I finally was able to control again (for a time, keypad controls seemed to be disabled), I shut heater off, let it sit for a time. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. This error code should not be shown on your Pentair heater at this point. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? Already known as being dependable and efficient, MasterTemp now offers smart features and an optional energy-saving Smart Bypass Valve Kit to help you ensure your pool is ready whenever you are. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. This residue is usually formed at the bottom. 38. I have a Pentair 400 master temp. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. Pentair Mastertemp 400 Blower Not Working, 10. Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. Any suggestions? Product Registration. Solution: Servicing on the pump or on the filter will fix this issue. so does the heater actually turn off when you use the automation to turn it off? Wait one minute. Solution: Alter the chemistry of the water and reach an equilibrium. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? 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). Maybe that is it? Take a closer look at where the water originates. Turn off the Pentair heater; . https://w. Pool heater failing to ignite gas. You need to examine which part is malfunctioning. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. Pentair Mastertemp 400 Low Water Circulation, 6. Installing a pool heater is not simple, but is done DIY all the time. I think our heat exchanger corroded last summer. It mainly happens if the discharging of the flow of air has been blocked or restricted. "width": "611",
Pentair Mastertemp 250 turns on automatically. Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). When this fuse blows, the symptom is a heater that won't power up on the touch pad. },
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