Ensure that the control board is dry. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. This could lead to leakage. Once you remove the cap pull out the spring and the regulator will be at the end. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. I connected my old termistor and got a reading of 85 degrees. . Sometimes the heat exchangers leak. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. 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. So in this case, you need to prevent the damage. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. The Mastertemp 400 requires a voltage of 24 VAC. "url": "https://intheswim.com/",
If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. You can install a bypass valve to regulate the required flow rate. Mastertemp 400 Safety Features. The Thermal Governor has become jammed and is unable to open. I know I can buy for much less through you guys or elsewhere online. Learn more, Facebook II Twitter II Pinterest II Linkedin. Check and rid the pump impeller of any dirt stuck inside. We have a Pentair 300 for both spa and pool heating. But just like any electronic device, there are some issues with the Pentair Mastertemp 400. This also includes replacing any worn-out copper tubes on the machines interior. Did you replace both Hi Limit Switches? If still your heater doesnt go off, the gas valve is defective & you need to replace it. Test your fill water too. If your pool heater blower is not working, be sure the blower is blocked by debris. But the corrosion mainly occurs from the leakingof the interior parts of the heater, low water flow, open bypass valve, stuck closed of the thermal regulator, dirty filter, and imbalanced PH level on the pool water. In case the issue persists, replace the control board. Look at the blower if you hear a clicking sound. Could the problem be the regulator? "url": "https://blog.intheswim.com/"
However the Heater Off button doesnt turn off the LCD display like it does in this video @2:05 Heater doesnt have its own control box, but is hooked up to an inline timer with the Pump. Advice? I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Check to see if anything is stuck on the stove. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. The 2nd is after modified the 3-port valve to the return lines. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. },
******************************************************** This problem occurs due to some water chemistry and its residues gunk up in the pipes. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. I just didnt trust them anymore. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Check out the thermal regulator as well. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. I look forward to your advice. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? Make sure that the filter of the heater is cleaned as well. 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. A dirty filter can prevent a heater from firing and it can also cause your heater to shut off before warming the water to the desired temperature. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Check out the pressure sensor, thermal regulator, or high limit switch. Also could possibly have circuit board problems. Read More. 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. It has a big role in controlling the heater operation. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. Close the external bypass if open. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Thank you Frank Not sure why a pool tech wouldn't replace the 2 wire remote . Search. All Rights Reserved. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. Make sure that the air coil is being sprinkled upon during cooling. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. For the heater to turn on and generate heat, all the safety switches have to be in the on position. Can you give some thought? Then, replace the faulty heater part or parts. Condensation is normal when the water is cold. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . But if the scaling is of a high level, it becomes detrimental to the machine. Without gas, the heater won't operate. When this happens, the front panel buttons will stop working. 4. It doesnt sound like the heater is even trying to kick on. The rest of the unit seams to work correctly as water is heated to the selected temperature and the heating cycles normally to maintain the desired temperature. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . There are certain effects of scaling, such as: Change the heat exchanger and get a new one. Learn more about pool care and repair. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. This error code should not be shown on your Pentair heater at this point. . Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. Reason 4: Thermal Governor has got stuck and is not opening. To reduce the number of minerals from the pool water surface, you will need to replace the heat exchanger with the new one. I have seen people are struggling with the DE pool filters. If the automatic gas shutoff switch has tripped, you need to reset it. Burner pulsates or surges, especially on ignition. 13 years ago. Although, theres strong water coming out of the 2 return lines. They usually cannot be fixed. Replace in case necessary. To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. To get to the burner inside the heater, open it up. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? Learn how your comment data is processed. Now, we make a living selling to DIY people, who like to save money. The heater should be set at 104 and let the automation do the rest. Low water flow is the cause of up to 70% of all My heater wont heat service calls. Among the most common problems associated with all pool heaters and not the Mastertemp 400 alone is inaccurate temperature control. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. Enquire about how much voltage is being supplied to the heat pump. 1st one is the initial issue. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. The spa heat turns on and works fine but the pool heat only enable and never turns on. "@type": "ImageObject",
Also, at least once a year, you should disassemble and clean the D.E. Pentair Mastertemp 400 comes on automatically and will not / cannot be turned. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. Submit a Support Request. "caption": "In The Swim Blog"
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}. Check out the power of the transformer whether its all good or not. Any help would be greatly appreciated. There is nothing, but you have to replace it to fix the leaking issue. Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. I replaced the HLS twice to no avail. They have a have an SF code for Sensor Failure. To safeguard your heater from freezing temperatures, do two things. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. The solution to your heater issue is given in your previous comment. Check through it. I have a MasterTemp 200. 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? Recalled Pool Heater Model Numbers. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. I have a Pentair Mastertemp 250 pool heater. Find a Dealer. Ensure enough gas supply on the heater. Along with the fluctuation the heater cycles. Step 2: You then need to take apart the Max-E-Therm heater from the system. Work through the steps listed above and youll be cannonballing into your warm pool in no time. Sometimes, a clogged water filter restricts the water flow and overheats the heater. Why Fiberglass Windows Are Not Popular And Are They Worth It? Above the fireman switch is a 1 1/4 amp fuse. 3. The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. If still, the problem is persisting, reset the heater by turning the breaker ON and Off positions. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. https://w. The flame ignitor is firing but no gas flow. . Of course, there is also an internal bypass in most gas pool heaters. It cycles for a bit then I hear a click either it fires off or it doesnt. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. Clean out the filter first to resolve the low water flow issue. Measure the voltage of the heater transformer. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. I only found 1 small stone stuck inside where the bypass is. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. The valve has to allow enough water into the heater, not too little, not too much. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. But, is there a way that I can validate that there is really an issue? Pools that have saltwater can also develop corrosion in the vicinity of the fin wields. Additional Resources. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Same issue continues. service system & service heater lights are off heater set p read more You might also bring the heat exchanger in for maintenance. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Replace if you find any chemical or sanitizer damage there. Otherwise, the igniter is bad and you need to replace it. The thermal regulator can be stuck closed. We have a new Pentair Mastertemp 400. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. SOURCE: Pentair MasterTemp 400 Heater Will run fine for. SFS is stack flue sensor. All . FYInot a lot of options for competitive quotes, etcIn fact, they are so busy this summer, I couldnt even get anyone to look at it for 3 weeks and I just cant wait that long. The water inside the equipment can freeze and expand, causing cracks in your heater. Other reasons why the heater is not turning on include: Faulty igniter Solution: Servicing on the pump or on the filter will fix this issue. You are welcome! Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. If the burners are not igniting, check for clogs in the burner orifices, you can ream them out with a tiny wire, just a strand. What else can impact the temp reading? Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. The optimum level of the voltage supply is between 208 to 260 volts. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. "@context": "https://schema.org/",
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. The PS is red, and led6 is red. Hi,e repl This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. Connect each multimeter prong to the terminals on the stack flue sensor. This should not be a cause for concern, though. Let us know if you need help finding it. 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). Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Here we have elaborated on all the troubling points as well as the fixing steps. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. If the resistance is zero, the stack flue sensor needs to be replaced. Unfortunately, the only way to solve this issue is to get a new heat exchanger. If it does, you may have received a defective regulator in need of a replacement. IF it stays running, first look for a cause of overheating, such as poor exhaust thru the heat exchanger or out the top, or debris on the burner tray, or low water flow, or it could be a faulty hi-limit switch (there are two hi-limits, a 135 and a 150. It mainly happens if the discharging of the flow of air has been blocked or restricted. Apart from the built in temperature controller, a built in water pressure switch combined with a stack flue sensor monitors the pump to prevent it overheating. Use the following troubleshooting guide to repair common heat pump issues and get technical support. Is enough water getting into the heater? Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. "address": "",
If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. Table of Contents. I do not see a procedure for not being able to use the OFF button. Check your igniter module. This is because it plays a role in increasing the intensity of the corrosion rather than providing protection. There are four of them. This can cause cycling. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. We are always ready for your assistance. When the heater tries but fails to start, it recycles. Replace it. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. Reduce strength of exhaust vent and/or number of elbows. The temperature should always be higher than the pool heater. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. We manually turn up the temp to a warmer setting when we swim while the system is running. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. My heater also powers up, displays lights, without anyone touching it. Call Us. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. COPYRIGHT 2023. UPDATE. Turn off power to heater for about 5 seconds, and turn back on. A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. Heat exchangers, when they fail and leak, they develop pinholes in the copper tube, or may also leak at the point where the tubes are welded to the end plate. Looking like might be bad control board? To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. Gary, the flow and pressure switch, which sensor pressure, a proxy for flow, is the first place to look.Make sure the pump is pushing as much water as possible, into the heater.

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