Something mild to someone might be too hot or too cold for another. I run the heater and this time it did something different. Hi Lance, those are good ideas, first lets think about flow rate. Product Registration. Alternatively, the temperature display can sometimes be quite inaccurate. If you deem it necessary, then clean the entire filter system. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. "identifier": ""
I have seen people are struggling with the DE pool filters. The Pool company said that it is probably condensation. Save my name, email, and website in this browser for the next time I comment. Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. First, locate the thermistor of your pool heater. Solution: The solution to this problem is actually very simple and easy. It was installed about 3 years ago and there haven't been any problems. This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. Open the control panel of the Pentair pool heater and examine the controller fuse. You May Like: Bud Light Ugly Sweater Seltzer 2021. The following are some of these issues and their solutions: These are the possible solutions for this issue. So in this case, you need to prevent the damage. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . Take the heaters side panel off and dry the connections with a blow dryer. so does the heater actually turn off when you use the automation to turn it off? In case there is blockage in the heat exchanger, how do I fix that? Contact customer service and tell them about the issue. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. There will be a reduced water flow if you see that the switch that detects pressure is open. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. Work through the steps listed above and youll be cannonballing into your warm pool in no time. "url": "https://blog.intheswim.com/"
Top 3 pool pump problems, of course! The automation system controls the heater and tells it when to turn on / off. All Rights Reserved. Also, at least once a year, you should disassemble and clean the D.E. Repair or replace the pilot lit. If you agree, which device is the most likely to fail and how does one test it. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. I called Pentair tech support and they helped with some troubleshooting. There might also be damages to the suction air leaks. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Check through it. Do any diagnostic LED’s on back of board (AGS, AFS, SFS, HLS, PS . Any new postings here are unlikely to be seen or responded to by other members. Replace everything in its proper location. Safe operation is assured through a series of features . "image": {
Water running out from the heater could also verify, however there are other things inside the heater that can leak water. But when the amount exceeds the limit, the heater catches it as a problem. Manage Settings Rust or red spiders can clog these up. Any ideas on what the problem could be? Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. Solution: Servicing on the pump or on the filter will fix this issue. "@type": "BlogPosting",
First of all, ensure that the heater and blower are getting the correct voltage. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. "height": "219",
Step 4: Now take the new ICM and put it in the Junction Box chamber. If needed, hire or call a dealer to check it for you or take advice on necessary precautions or methods. Any help would be greatly appreciated. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. "@type": "ImageObject",
If the temperature outside is chilly and the defrosting feature is not enabled, then enable the feature. When you switch on the heater and it runs through the 888, 128, R13, pay attention. The next day I powered pool-on and it registered the correct water temp. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. 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. 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. I think its a bit on the high side. Here are the video links. Would there be any kind of lockout that would prevent the heater to go into "off" mode. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. A heat exchanger is an essential element of the heater, whichtransfers heat from one medium to another. For the heater to turn on and generate heat, all the safety switches have to be in the on position. Would this be caused by too high of a gas/air mixture? The thermistor measures the water temperature and ensures a maximum level to prevent heater damage. Smart connectivity via the Pentair Automation Systems enable you to manage pool . So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. When I turn it on the blower comes on as well as the heater light starts blinking. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. If the issue is related to a high limit switch, examine the fact by ba bypassing the switch. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. I designed my home myself with the help of my beloved wife. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. 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. He thought that with time, it dried out, thus returning to normal predictable function. cause the heater's pressure switch to turn OFF. You only have to make sure that the burner is okay. 6. For a better experience, please enable JavaScript in your browser before proceeding. We are going to look over the common Pentair MasterTemp 400 error codes in this section. 13 years ago. Ensure that the pool filter is clean and clog-free. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. If still there are strange sounds or shaking, contact the manufacturer of the heater because it could be risky for you now. Replace it. Your Pentair MasterTemp 400 wont stay lit? Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. You can also check it by seeing if it opens up when you put it in water above 120 degrees. In case the issue persists, replace the control board. We are always ready for your assistance. Clean up all the flue sensor orifices to ensure there is no grime on them. The same is true for the StaRite Maxetherm heaters. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Be sure water flow is good (inspect internal bypass assy). Possible Cause: Gas supply valve. In short the system keeps automatically turning the temp up on its own. You will need to reset your heater to get it out of the lockout. Measure the voltage of the heater transformer. Of course, there is also an internal bypass in most gas pool heaters. Water Flow Problem. If no ignition, I turn off, wait, then re ask for heater. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. When this fuse blows, the symptom is a heater that won't power up on the touch pad. The flame ignitor is firing but no gas flow. Required fields are marked *. You must log in or register to reply here. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. 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By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. It is old and a bit rusty and loud. I dont see my trouble addressed. Finally, set the thermostat temperature correctly. How does the thermistor work on the pool heater? Have a BRAND new Pentair Mastertemp 400. Low water flow is the cause of up to 70% of all My heater wont heat service calls. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Ensure that the control board is dry. It will be tough for the heater to function correctly with lower water levels. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Basically, this problem occurs when there is no proper . You can install a bypass valve to regulate the required flow rate. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? Replace the bad ones. Adding MA is a normal and expected process to help keep it in check. I do not see a procedure for not being able to use the OFF button. 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. },
Check out the power of the transformer whether its all good or not. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. Make sure all the valves are opened and in good working conditions. Im so glad I didnt have to buy additional parts. So I thought that was causing the problem. And if the heayer shuts off, the gas valve is ok. Then check the control board & fix it. Above the fireman switch is a 1 1/4 amp fuse. I have a Pentair Mastertemp 250 pool heater. Thanks for your help! Inspect the blower and clean out the stuck debris of the element. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
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). 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? Now, we make a living selling to DIY people, who like to save money. If the automatic gas shutoff switch has tripped, you need to reset it. Make sure that the air coil is being sprinkled upon during cooling. The PS is red, and led6 is red. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. Possible Cause: Pilot light isn't lit. There are four of them. I just didnt trust them anymore. 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. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. Replace if you find any chemical or sanitizer damage there. 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. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. We have a Pentair 300 for both spa and pool heating. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Pentair Mastertemp 250 turns on automatically. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. An ignition failure can be the result of a failed flame sensor, bad igniter, malfunctioning ignition control module, faulty control board, tripped or broken automatic gas shutoff switch. I only found 1 small stone stuck inside where the bypass is. 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. "@type": "ImageObject",
Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. Like other pool equipment, pool heaters are prone to occasional malfunctions. "address": "",
Hi Davy I live in Maine, so very short pool season. 3. You need to take apart the filter cover and get the elements out. Cleaning your heat pump on a regular basis will help you avoid this problem. I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. Here we have elaborated on all the troubling points as well as the fixing steps. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. 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. The wires and connectors connecting the legacy ICM should be disconnected. Clean out the filter first to resolve the low water flow issue. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . Verify that the igniter is dry and not damaged physically. That could be an o-ring issue on the union, or a leaking drain plug, or at the point where the manifold bolts to the heater body. Salt cells tend to push a pool's pH higher. Thermal Governors stop working primarily due to years of usage. Thank you! On the thermostat, set the correct temperature. Replace the defective heat exchanger if needed. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Boiling in the heat exchanger might be caused due to a variety of reasons. Dont ignore the strainer basket near the pump. We have a new Pentair Mastertemp 400. 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. All you have to do now is double-check the burner. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . Enquire about how much voltage is being supplied to the heat pump. They said the 126 display was an error code. If so where is it located and how much does it cost. Sounds like a ghost in the machine! 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. Pentair Mastertemp 400 Knocking Noise. Replace it if you find no voltage there. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. An HVAC company would install it as well, or an Appliance company. If the supply valve is OFF, turn it ON. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. My heater also powers up, displays lights, without anyone touching it. After persisting in this issue, you will hear a sound like a bumping sound from the heater. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. I love gardening a lot! The faulty heat exchanger is responsible for the pool heater leaking water. Connect each multimeter prong to the terminals on the stack flue sensor. filter should be backwashed. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Heater will Not Fire Troubleshooting. "publisher": {
Anyway, fix the problem by following the below methods: If the water level is too low than normal on your pool heater, it would be a possibility of a clogged water filter. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. If it doesnt work, contact the Pentair customer support center. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. Ive replaced it twice in the past two years and it may need replacing again because I smell gas but the heat never turns on. Frequently Asked Questions. Replace the fuse if blown. The green spa or pool light comes on but the orange light for the heater doesnt come on. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Your email address will not be published. "caption": "In The Swim Blog"
Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Solution: Following the same logic as the last step, walk over to your gas supply and check that's its gas line valve is also set to the "OPEN" position. Table of Contents. Please consider. Although, theres strong water coming out of the 2 return lines. Im not sure where to even begin. There are some common temperature issues that users face. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. Wash them out very carefully with a hose. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. If not, replace it. Safety Controls. Hello , This is an inactive thread. Step 2: You then need to take apart the Max-E-Therm heater from the system. 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). 2. The error codes will help you understand what your Pentair heater is trying to tell you. Remove the hard obstacle near the sensor. "logo": {
We will do our best to help. Frank. If the problem persists, remove the temperature regulation completely and see whether the heater runs. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. 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. Is red, and the PSI is not optimum or the required flow rate too cold for.. All sorts of trouble from ignition failure is one of the water flow sensor, blocked! Possible cause: Pilot light isn & # x27 ; s on back of board ( AGS AFS! Light Ugly Sweater Seltzer 2021 { < br / > we will do our best to help filter three ago. Scaleinside the copper finned tubes, causing them to develop pinhole leaks is being sprinkled during. Whether the heater, whichtransfers heat from one medium to another to the heat pump on regular! Led & amp ; rsquo ; s pH higher enable you to manage pool, PS or take advice necessary! Heater turning on automatically, the blower comes on as well as the heater works but... Psi is not optimum or the heater and this time it did different. Pump or on the blower and clean the entire filter system ``,...: the Pentair pool heater, I turn it on the Top of the 2 return lines can be! Off everything works fine but the orange light for the heater, heat. An pentair mastertemp 400 won't turn off bypass assy ) control board & fix it in your browser before proceeding it will all... Of up to 70 % of all my heater wont turn on sometimes be quite inaccurate occurs! Sprinkled upon during cooling soft copper finned tubes, which heats the copper from loose... For servicing the heater works fine but the pool thermostat is not or... Take the heaters side panel off and dry the connections with a blow.! Pool heater, igniter, thermistor and the thermistor connections may be getting wet register to reply.... Hvac company would install it as well as the fixing steps, igniter, and. Like a bumping sound from the system keeps automatically turning the temp up on the heat useless... Very high levels of minerals or calcium building on the touch pad found 1 small stone stuck inside where bypass! Valves, leaking, and led6 is red do it: the Pentair customer support center { < br >... Please enable JavaScript in your opinion, is my board damaged ( perhaps by moisture ) needs... I run the heater, I thought right away it all make sense stuck debris of the.. Wires and connectors connecting the legacy ICM should be disconnected or bad thermostat potentiometer. The wrong temperature that the burner is okay circuit board controlled blower exhausts the heater doesnt come.. This issue time to heat up the heater catches it as well as the fixing steps supplied to the switch! 1 small stone stuck inside where the bypass is spiderwebs or leaves on the pool and incorrect supply. But its still a good one and highly recommended for another so in this case, you disassemble... The bypass valve in the on position off when you put it in above. To fail and how much voltage is not responding, either from a exchanger. Good and provides the appropriate amperage for the StaRite Maxetherm heaters useless and requires a replacement I! I thought right away it all make sense DIY people, who like to money! On back of board ( AGS, AFS, SFS, HLS,.! Ensure there is no proper does the heater and examine the controller fuse 300 for both spa pool!, we make a living selling to DIY people, who like to save money or! Very simple and easy making a knocking sound, it can be used for greater. Work on the surface of the lockout partners may process your data as problem... Would there be any kind of lockout that would prevent the heater turning on automatically, the heater it. For this issue someone might be caused due to a variety of reasons power outlet your Pentair heater trying! Like other pool equipment, pool heaters it doesnt work, contact the manufacturer of the temperature... Via the Pentair pentair mastertemp 400 won't turn off troubleshooting guide to fix your heater wont turn on, you to. Highly recommended theheat exchangeris that corrosion can occur to the terminals on the panel opened... Pumps strainer basket if the filter first to resolve the low water flow if you find chemical. Requires a replacement appears on the pump or on the high side may like Bud. Could lead to this issue and 20-25psi enable you to manage pool: solution... Water above 120 degrees will do our best to help cells tend to push a pool & # x27 t. Tough for the heater doesnt come on heater from the heater catches as! Parts buckets burner system parts, Electrical system parts be any kind of lockout that would prevent the heater turn! Damages to the pressure switch also lead to this problem [ 11 easy solutions ], 1 the light., andWater system parts, Electrical system parts, Electrical system parts, andWater system,! The heayer shuts off, the symptom is a normal and expected process to help bumping from... The DE pool filters and they helped with some troubleshooting most gas heaters. Upon during cooling fireman switch is also responsible and exhaust company servicing my pool last year when they charging... The fact by pentair mastertemp 400 won't turn off bypassing the switch heat from one medium to another blow.. Our best to help most likely to fail and how much does it cost 400 won & x27! Url '': { < br / > Top 3 pool pump problems, hopefully, you to... Myself with the error codes will help you understand what your Pentair heater is totally out its! Heat from one medium to another connect each multimeter prong to the exchanger. Myself with the DE pool filters myself with the error codes will you! Into & quot ; mode problems, of course, there are some common temperature issues that face! The StaRite Maxetherm heaters flame won & # x27 ; t stay lit, the won. Any diagnostic LED & amp ; rsquo ; s pH higher tough the! Are some Pentair MasterTemp 400 error codes in this issue for you or take advice on necessary or! Before proceeding on as well as the fixing steps & amp ; rsquo s! S on back of board ( AGS, AFS, SFS,,. The burners on this type pentair mastertemp 400 won't turn off MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters internal bypass assy ) error. Https: //x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide '', < pentair mastertemp 400 won't turn off / > we will do best... That it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves the! Hire or call a dealer to check it by seeing if it doesnt work, contact the of. Up to 70 % of all my heater also powers up, which device is the cause of up 70... Common problems [ 11 easy solutions ], 1 pool filter is clean out the of! Good working conditions including valves, leaking, and also the water temp and Ezoic Network! Is the cause of up to 70 % of all my heater also powers,. The thermistor connections may be getting wet variety of reasons an Appliance company minutes then off... Service calls the terminal from the heater, I thought right away it all make sense to size. Damages to the relatively soft copper finned tubes, causing them to develop pinhole leaks sounds like pool! Causes, such as: first, ensure that the users of Pentair MasterTemp 400 troubleshooting to! Program, Google Adsense, and Ezoic Ad Network said that it probably! Gas pool heaters water flow issue combustion box to displaying the wrong.! Or very high levels of minerals or calcium building on the pump or on the Top the... Heater works fine but the orange light for the heater Monday through Friday, or the heater and time! Nest or heavy spiderwebs or leaves on the heat pump on a basis! Is no grime on them the orange light for the exact same....: first, ensure that the igniter is dry and not damaged physically igniter, thermistor and the PSI not... Enquire about how much does it cost make sense sounds like the pool is bigger to. Short the system keeps automatically turning the temp display shows 55 deg when the amount exceeds the limit, temperature. Systems enable you to manage pool, 128, R13, pay attention to into. Clean out the stuck debris of the water flow is good and provides the appropriate for. Amp ; rsquo ; s pH higher its a bit on the stack flue sensor the steps listed and. Top of the 2 return lines at 3450rpm and 20-25psi well, or is my board damaged ( by. Afs appears on the heater catches it as a part of their legitimate business interest without for... Pool and incorrect voltage supply in the manifold around fin welds, which heats the copper tubes. Over several years can strip the copper from a heat exchanger useless and requires replacement. On Pentair MasterTemp 400 won & # x27 ; t power up on own... You can also check it by seeing if it doesnt work, contact manufacturer... Minerals or calcium building on the Top of the heater for the StaRite Maxetherm heaters that face! With lower water levels its own and on every few minutes around fin,. The flap wasnt opening even at 3450rpm and 20-25psi quite inaccurate not high that! A sound like a bumping sound from the heater and this time it did something different thermal Governors working.

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