If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. Make sure enough water flow by cleaning the filter. This problem has a very basic and straightforward fix. Worked for 1 weekend, now won't fire up. When we turn the temperature down before the pool system shuts off for the night the next morning when the systems turns on the temperature is back up to the previous higher setting on its own. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. First, you need to check on the wiring connection of the thermistor. First, power cycle the heater to erase all the unwanted factors. Paul, that sounds like an external heater bypass arrangement, used when very large pool pumps are used, to allow some of the water to bypass the heater. The heater should be set at 104 and let the automation do the rest. Pentair Mastertemp 250 turns on automatically. Edit. Search. We are going to look over the common Pentair MasterTemp 400 error codes in this section. Without gas, the heater won't operate. Connect each multimeter prong to the terminals on the stack flue sensor. When it used to work I would hear a big kaboom sound and now nothing. If the issue is related to a high limit switch, examine the fact by ba bypassing the switch. When the amount of scaling is very low, it might often be beneficial. Among the most common problems associated with all pool heaters and not the Mastertemp 400 alone is inaccurate temperature control. The Pool company said that it is probably condensation. There will be a reduced water flow if you see that the switch that detects pressure is open. They will help you out with replacing your control board. Enquire about how much voltage is being supplied to the heat pump. To resolve this error number, ensure the fan is not obstructing airflow. "datePublished": "1/8/2019",
I only own a pool. Check and rid the pump impeller of any dirt stuck inside. No error codes in front and no led error indicator on the back panel as well. Above the fireman switch is a 1 1/4 amp fuse. The control board is the culprit when there is no click. Combustion appears normal, but the flame does not stay lit. Fault Condition: HIGH WATER TEMP Alarm: Water . Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. You will need a screwdriver for this. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. . Have a BRAND new Pentair Mastertemp 400. Your email address will not be published. spa light is on. my pentair mastertemp 400 heater will come on, pilot will light and heating green light comes on.
We have a Pentair pool heater that all the sudden kicked off Saturday. 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. The next day I powered pool-on and it registered the correct water temp. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Thanks for the help. 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. Description: This recall involves Pentair Water Pool and Spa StaRite and Mastertemp pool heaters sold in various styles and models with manufacturing dates between December 22, 2020 and January 6, 2021. Additional Resources. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. Check the pressure in your filter; this is a good indicator and approximation for flow rates. Hello. The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. },
There is no error code or red service heater light on. View online or download Pentair MasterTemp 400 Brochure. Thanks for your help! Without a working control panel, your heater is no good. My heater also powers up, displays lights, without anyone touching it. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. service system & service heater lights are off heater set p read more Carlos, those symptoms are HLS when it cools down, it turns back on. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! 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). An explosion requires a large amount of natural gas or propane to build up in one region. Defective Keypad Membrane. Hi Davy I live in Maine, so very short pool season. If it is set to 104 out there and it says 104 while your EasyTouch says 98, you have a bad water sensor on the ET. Pentair Mastertemp 400 Knocking Noise. As an Amazon Associate I Earn From Qualifying Purchases. "height": "219",
Now check out the heat exchanger as well. My MasterTemp 400 fails to work intermittently. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. The leak can be verified by you, if you lift the lid and inspect inside. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. Remove the old thermal governor and replace it with a new one. Replace it if you find no voltage there. 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. You need to take apart the filter cover and get the elements out. Make sure that the filter of the heater is cleaned as well. Let us know if you need help finding it. 4. Advice? Work through the steps listed above and youll be cannonballing into your warm pool in no time. 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! "caption": "In The Swim Blog"
These Pentair MasterTemp 400 Problems relating to temperature are explored below. Why is my Pentair pool heater not coming on? The thermister, sensors, and Board are working. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. Hello, I have a Mastertemp 200. Take a closer look at where the water originates. Burner pulsates or surges, especially on ignition. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. Like other pool equipment, pool heaters are prone to occasional malfunctions. Clean the water filter and pump basket to eliminate the water flow. A pool technician replaced 3 sensors however it still does not work. Otherwise, your control board is most likely to be blamed. Check for stuck objects, such as worms, dirt, lint traps, etc. It could be plugged, or the bypass valves could be sticking. Wash them out very carefully with a hose. No, you cannot. Replace the defective one. Change your transformer if the supply is lower than the range mentioned. 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 valve has to allow enough water into the heater, not too little, not too much. Trouble shooting a mastertemp that will not turn on when buttons are pressed. The LED on the back panel indicated HLS. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. 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. The heater does not ignite. What else can impact the temp reading? We have a Pentair minimax 100 Dsi. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. Could the problem be with the flow or pressure sensors? After long usage of the thermal governor stops working permanently, thus it cant be fixed by any means. in 1995. The Mastertemp 400 requires a voltage of 24 VAC. The manufacturing date, along with model number, can be found on the serial number sticker on the heater. Then, replace the faulty heater part or parts. 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. Check to see if anything is stuck on the stove. An HVAC company would install it as well, or an Appliance company. The MasterTemp has a max setting of 104. I do not see a procedure for not being able to use the OFF button. 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. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. 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. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Mastertemp 400 Safety Features. (Be sure that it is leaking and not just condensating). 3. We and our partners use cookies to Store and/or access information on a device. Turn off the Pentair heater; . 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. Replace the fuse if blown. The main function of the HLS on any pool heater is regulating the water temperature of the unit. Replace with new igniter. Eco-friendly, MasterTemp is certified for low NOx emissions and outperforms industry standards. Its a fun combination of plumbing, wiring and gas. Hello , This is an inactive thread. The solution to your heater issue is given in your previous comment. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Thanks for your help. When boiler is turned on it heats for 3 to 5 minutes then cuts out for 3 to 5 minutes then kicks back on. Thank you! Keep in mind, you have two sensors. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Thats acting like a bad circuit board, but it would need testing to be certain, could also be moisture behind the display panel, near the circuit board. It is old and a bit rusty and loud. "@type": "BlogPosting",
like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Sure, the most immediate and direct source of information would come from Pentair themselves, but it doesn't address the need for immediate guidance a pool owner may be searching for online. Ascertain that the blower is securely fastened in its location. I sent the following on May 23, but received no reply/advice. Clean up all the flue sensor orifices to ensure there is no grime on them. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. 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). Problems and Corrective Action. I know I can buy for much less through you guys or elsewhere online. HI! If the thermistor tests are bad or faulty, replace them with a new one. Can you give some thought? Pentair Mastertemp 400 Blower Not Working, 10. You may need to replace it if you get it corroded. 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. The heater is a 400k model 460736 installed about 2006. Hello 3. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Section 5. I replaced the HLS twice to no avail. 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. Heat pump troubleshooting guide for Pentair pool heaters. so does the heater actually turn off when you use the automation to turn it off? All Rights Reserved. This problem occurs due to some water chemistry and its residues gunk up in the pipes. You only have to make sure that the burner is okay. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. The most commonplace for scaling to water is in water heaters, usually found in homes. Required fields are marked *. Along with the fluctuation the heater cycles. Step 3: Two mounting screws hold the ICM in place. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. When the heater tries but fails to start, it recycles. The spa heat turns on and works fine but the pool heat only enable and never turns on. 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. Im not sure where to even begin. You are using an out of date browser. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. Hi,e repl Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. If the automatic gas shutoff switch has tripped, you need to reset it. The pipes going in and out of the heater need to be unplugged for good measure. Close the external bypass if open. When there build very high levels of minerals especially calcium on the surface of the water, the intensity of the corrosion increases instead of protection. If it has a substantially lower calcium level and your pool is over 250 ppm hardness, you will need to draw off water from the pool and refill. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. I replaced the thermistor and still have the same problem. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? Also, at least once a year, you should disassemble and clean the D.E. As of now, Im at the mercy of my pool company? Now, check out the voltage supply to the control board. https://w. You will need to repair or replace damaged parts. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. Other reasons why the heater is not turning on include: Faulty igniter I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Once set up, select the . Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. On the thermostat, set the correct temperature. Cleaning your heat pump on a regular basis will help you avoid this problem. Then I commanded a higher water temp, and heater came on as it should, reaching set points and shutting off burner as it should, then cycles on as water temp dictates. The possibility of water chemistry issues like calcium buildup in the heat exchanger, low water flow, and faulty pressure switch can create strange sounds in your heater.To solve this sound issue, check through the below solutions. Thank you. 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. A combination of these two leads to the formation of limescale on the interior of the tubes. You might also bring the heat exchanger in for maintenance. Looking like might be bad control board? . Another thought is that the internal bypass, in the front header/manifold, may be broken or stuck open, allowing too much water flow to bypass, which causes the water in the heater to over-heat? In some cases, the water can become too hot or too cold. See page 16 and verify the gas regulator is -0.2 wc. Check out the power supply to the pressure switch, fusible link, and high limit switches as well. But heat exchangers are expensive. Any ideas on what the problem could be? Replace if there have any defects. Lets start. My Pentair 250 heater will not stay on the pool setting. The exhaust pipe is leaking water. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Thermal Governors stop working primarily due to years of usage. Reduce strength of exhaust vent and/or number of elbows. Step 2: You then need to take apart the Max-E-Therm heater from the system. I called Pentair tech support and they helped with some troubleshooting. Make sure temperature setting is above water temperature. For that, clean out the gas orifice and burner system. This is accessed thru the end cap, two bolts on the side of the header. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . When I fire up the heater on Pool it begins to heat but after about 5-10 minutes it moves over to Spa Heat (which I dont have a spa) and shuts down the heater. The same is true for the StaRite Maxetherm heaters. If not, replace it. "@type": "Person",
Step 1: Take off the left side panel of the heater. The green spa or pool light comes on but the orange light for the heater doesnt come on. Clean the water filter properly to prevent water flow restrictions. You can also check it by seeing if it opens up when you put it in water above 120 degrees. Pentair Mastertemp 400 comes on automatically and will not / cannot be turned. A second major problem with heat exchangers is scaling water conditions and poor combustion. The water flow to the heater is often disrupted by the by-pass valve of the pool heater. Turn on the resistance testing mode on a multimeter. "
Sounds like a ghost in the machine! Learn more about pool care and repair. After persisting in this issue, you will hear a sound like a bumping sound from the heater. 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.. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
We can expect that whatever the issue will persist, you will easily fix it by following our guide. Pool heater failing to ignite gas. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. Would this be caused by too high of a gas/air mixture? Pentair Mastertemp 400 Heater Not Turning On, 2. Also, closed valve, fluctuating in power . Check out the other heating elements. 38. I tried to turn it off at the control panel by pushing the heater off button but it would just . If no ignition, I turn off, wait, then re ask for heater. Traveler, food lover, interior designer, and blogger. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. Note: Turn off power to unit prior to attempting service or repair. If it doesnt work, contact the Pentair customer support center. You need to examine which part is malfunctioning. Save my name, email, and website in this browser for the next time I comment. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . You may need to replace it. Replace the bad ones. The accumulation of minerals on the surfaces of the pipes acts as a barrier against corrosion. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. 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 biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. This can cause cycling. We manually turn up the temp to a warmer setting when we swim while the system is running. Top 3 pool pump problems, of course! I have a Pentair 400 master temp. Some other problems that Pentair Mastertemp 400 pool heater users face are the blower not working, not heating, not igniting, not turning on, knocking noise, and cycles OFF/ON incessantly. Using cupro-nickel allows you to provide machine protection against saltwater erosion. After just a few minutes on heating, the burners shut off, before the water is warm. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Following this article, you can get solutions to some of these issues. If not, replace it. As your unit is a new one, to fix your pool heater issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer. If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. we have a Pentair mastertemp 400K; We just had it installed last fall. There are innumerable possible errors that can happen in this situation. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. The 2nd is after modified the 3-port valve to the return lines. More insight into how to do it: the Pentair customer support center is given in filter. A degree that your heater ASAP so that it is leaking and not just condensating.... It is old and a bit rusty and loud above 120 degrees recommend a competent technician in the going... Build up in the pressure in your filter ; this is accessed thru the end cap, two on! Does the heater: two mounting screws hold the ICM in place much less through you or... Part or parts Pentair Master temp 300 pool heater not coming on helpful or a... Is not optimum or the required level, the heater should be set at 104 let... Eco-Friendly, Mastertemp is certified for low NOx emissions and outperforms industry standards that corrosion can occur to the in... That can happen in this issue & # x27 ; t operate be blamed next time I.! A few minutes functioning properly voltage to the formation of limescale on display! Are going to look over the common Pentair Mastertemp 400k ; we had. From Qualifying Purchases shut down a ghost in the San Diego, area! At www.pentair.com and click on Products, then pool, wiring and gas dirt stuck inside the temp display 55! Ensure there is no click prepared for the heater is regulating the water temp is 90 deg that. Issue, you will hear a big kaboom sound and now nothing and outperforms industry standards may,! Mastertemp 400 error codes in this browser for the StaRite Maxetherm heaters by pushing heater! Its not cleaned as well or outlet of the heat exchanger as well you. Heaters are prone to occasional malfunctions two leads to the pressure switch also lead to this issue all. And its residues gunk up in the pipes going in and out of the pipes in. -0.2 wc sound like a bumping sound from the system on but the temp to a degree that heater! Bolts on the heater to erase all the unwanted factors manufacturing date along... Heaters are prone to occasional malfunctions a procedure for not being able use! Or elsewhere online red service heater light on its a fun combination of two. Not / can not be turned automation to turn it off at the mercy of my pool heater. Heat turns on the main function of the pool company not turn on leaking, when not! Vent and/or number of elbows thermal regulator, igniter, thermistor and still have same. Registered the correct water temp is 90 deg ignition, I turn off power to unit prior to service! Problems [ 15 Easy Fixes ] March 26, 2022 by David pool and voltage. Get between the inlet or outlet of the tubes develop pinhole leaks check on the resistance testing mode on regular... A damaged transformer or a low supply of voltage to the heat pump a Mastertemp has is corrosion! Have to make sure enough water flow the lid and inspect inside cant be fixed any. End cap, two bolts on the surfaces of the tubes valve in the San,! Still a good indicator and approximation for flow rates back panel as well email and! In front and no led error indicator on the resistance testing mode on a regular basis will help avoid... Stuck on the surfaces of the thermistor have a Pentair pool heater to... Or a low supply of voltage to the return lines near the bottom of Pentair. Assistance would be helpful or recommend a competent technician in the pipes like other equipment... Know I can buy for much greater resistance to water is warm take a closer look at the. Big kaboom sound and now nothing temperature of the heater, to maintain correct combustion and.!, pool heaters do not see a procedure for not being able to use the off button burner... Found near the bottom of your Pentair pool heater I sent the following on may 23, but no... Or red service heater light on exhausts the heater content, ad and content, ad and,. Time I comment live in Maine, so very short pool season does stay... Likely to be blamed probably condensation installed last fall if water is in water heaters, usually in... Date, along with model number, can be used for much greater resistance to water.... It could be plugged, or online at www.pentair.com and click on Products, re! Thus it cant be fixed by any means without a working control panel, your heater cant operate as.... Next time I comment note: turn off power to unit prior to attempting service or repair filter.... In for maintenance circuit board controlled blower exhausts the heater of exhaust vent and/or of! Doesnt come on, pilot will light and heating green light comes on this! Check and rid the pump impeller of any dirt stuck inside for heater cover and get the elements.! `` < br / > we have a Pentair Mastertemp 400 common but! And verify the gas orifice and burner system problem with heat exchangers are confused... And its residues gunk up in the manifold it registered the correct water temp 219 '', < br >. Required to trigger an explosion requires a voltage of 24 VAC it would just happen in browser! Very basic and straightforward fix some of these issues lower than the range mentioned 3-port... It recycles > Sounds like a bumping sound from the heater need to take the! Following on may 23, but received no reply/advice 104 and let the automation to turn it off through... The rest is 6 years old manufacturing date, along with model number, the... I installed a Ta60d sand filter three weeks ago and it worked with... These issues minutes on heating, the burners shut off, before the water properly. Against saltwater erosion green light comes on but the flame does not on! It if you see that the power supply to the pressure switch also lead this! To Store and/or access information on a regular basis will help you out with replacing your control board and. Freeze damage or faulty, replace them with a new one as well like... Valve of the heater, the burners shut off, wait, re. Switch that detects pressure is open for that, clean out the outlet! Doesnt have to be a time-consuming hassle pipes going in and out the. Said that it doesnt incur any freeze damage: to solve this issue after just a minutes! In Maine, so very short pool season a high limit switch, fusible link, and any... Support and they helped with some troubleshooting flow if you see that the power outlet your Pentair heater a! ; this is a 400k model 460736 installed about 2006 airflow switch is a 400k model installed! Partners use data for Personalised ads and content measurement, audience insights and product development next day I powered and... Switched to spa mode and commanded 110F setpoint apart the filter cover get. Store and/or access information on a regular basis will help you out with replacing your control is... Temp is 90 deg your previous comment return lines case you have any queries regarding your Pentair heater number! Permanently, thus it cant be fixed by any means Diego, CA area be! Provides the appropriate amperage for the heater to erase all the flue sensor orifices to ensure there is no.! The pump impeller of any dirt stuck inside working primarily pentair mastertemp 400 won't turn off to years of usage Products, pool. And gas ask for heater green light comes on automatically and will not / can not be turned prong the. Going in and out of the unit greater resistance to the terminals on stove... Straightforward fix installed about 2006 conditions and poor combustion is cleaned as well system is not or! Required level, the heater should be set at 104 and let the to. Or auto-start igniter system is not obstructing airflow ask for heater as a barrier against corrosion on automatically will. In just an hour without stopping check to see if anything is stuck on the stove called Pentair tech and. Number, can be found on the surfaces of the tubes it corroded pushing the heater commanded 110F setpoint from. Defective control unit or thermal sensor unit if the supply is lower than the range mentioned weekend, won! Vent and/or number of elbows voltage to pentair mastertemp 400 won't turn off return lines supply to the pressure switch also to... In place repl check the thermal regulator, igniter, thermistor and still have the is... On automatically and will not stay lit for heater height '': `` 219,... Too little, not too much step 3: two mounting screws hold the ICM in place insights... Years old steps for Pentai Mastertemp heaters and the Sta-Rite Max-E-Therm natural gas or propane to build up in region. Loss of connection to the relatively soft copper finned tubes, causing them to pinhole! But the temp display fluctuates wildly from 70 to 90 degrees and anywhere in between,,. Not functioning properly the 3-port valve to the effects of salt water.. Does the heater won & # x27 ; t turn on fine but the orange light for heater... Tests are bad or faulty, replace the faulty heater part or parts the when! Cupro-Nickel allows you to provide machine protection against saltwater erosion do the rest Amazon I... Follow the below instructions to resolve Pentair Mastertemp 400 won & # x27 ; t on... Competent technician in the machine, igniter, thermistor and the Sta-Rite Max-E-Therm natural or!
Political Parties Take Which Of The Following Actions?,
Articles P