It might be a complex issue that will take a bit of research and learning about your pool if you haven't done so already. Related: Why You Should Upgrade To a Variable Speed Pool Pump. Evaluate outside factors This is the part responsible for shutting off the heater if it gets too hot. Hold the knob down for a minute, so the pilot generator heats up, then release. If the cycling on and off is accompanied by loud banging noises then be sure to read heater is making loud noises below. Worn out or damaged heat exchanger. In other cases, it can involve more in-depth troubleshooting. If you have 24 volts, then there should be a pilot visible thru the site glass (although it can be difficult to see). In addition to working through the gas pool troubleshooting list to save money, there are some great ways to save money when it comes to your pool heater. Gently tilt the heater until all the water runs out or use a shop vac or blower to blow the water out of the lines. If at any point you feel uncomfortable, over your head or you can't figure it out call a professional that works with appliance repair every day. Technically a solar pool heater can’t be turned on since the “heater” is mostly comprised of solar paneling/material. Of course, if you’re unsure of the final verdict and want some reassurance, seeking a professional industry advice could help. The downside is that the pool heat exchanger assembly is not cheap if it does need to be replaced. In both cases, the parts can deteriorate over time and lead to rust. When you crave a refreshing swim and have a pool heater to keep the water warm and comfortable, You know what isn’t so great? If the heater has been off for a long time, (more than one week), wait 3-5 minutes prior to firing the heater to give the pilot generator enough time to heat … Raise the thermostat to a temperature at least 5 degrees higher than water . The small amount of water that's inside the heater is overheated to the point of boiling, it eventually turns into hot steam, which causes the loud noises from inside the heater. Ensure gas line valve is open and unobstructed. The heater has a millivolt pilot light, which is lit, but the burner won't start up on it? If the heater must be hard wired, open the junction box and disconnect the cord. But only assume this is a possibility after you’ve gone through the rest of the tips in this post. We have sufficient flow. Gas pool troubleshooting can be tedious when the problem isn't easily recognized and needs a thorough investigation and it might be required for this issue. If you refilled your pool recently but forgot to power down your electric heater during that time, it may have burnt out or gotten damaged. Either way, if your gas, propane, electric, solar, or heat pump pool heater won’t turn on, don’t worry, this post has plenty of solutions for you. We'll go over some common questions related to gas pool heaters including fireman's switches and converting from natural gas to propane. Filters . If you didn't find your question in the gas pool heater troubleshooting section hopefully you find an answer below. Take a look at the heater thermostat on the unit itself and if you are using a mobile or automated control, double check that it's set properly as well. Direct sprinklers and rain spouts away from the heater or use a cover that will keep rain and snow out. 3. If you end up calling a certified service technician it's also handy to be educated when explaining the problem. It might also be something simple like changing the setting on your heater thermostat or control. It can also happen when sanitizer is high or when water is shocked too often. The Igniter is de-energized at flame sense or at completion of 4 sec trial. If it’s your first time running your heater, there’s a small chance that your pump isn’t strong enough to supply water at the pressure your heater needs. Show More. Salt Water Pool and Spa™ participates in various affiliate programs, including Amazon Services LLC Associate Program, as an Amazon Associate we may earn a commission from qualifying purchases. Cleaners . It has been sitting for a while. But if you own a pool heat pump, LIVE pool heater troubleshooting may be the perfect solution for you. When diagnosing a gas pool heater banging noise there is one common culprit, an open external water bypass left open that shouldn't be. It should be done by a professional and requires converting some of the parts including gas valve and burner orifices. Hire the Best Pool Heater Repair Services in San Antonio, TX on HomeAdvisor. However, it is still powered by your pump. Sanitization . On most units, the switch is located near the heater’s outlets. If you are in doubt, contact the manufacturer of your heater. If you use your pool every day for relaxing or exercising and are not looking to extend your swimming season into the cooler months, our heat pump is an ideal choice for your pool. If the gas pool heater pilot light won't ignite there are a few reasons for this. Keep the water temperature at the lowest comfortable setting. If you manage to get the pilot light lit intermittently but it goes out before heating the pool completely, you may have a number of things happening. Keeping your pool maintained and water chemistry in check will prevent this problem from occurring. Most of the time, this common problem is solved by upgrading to a variable speed pool pump. Low gas pressure or NO gas can be caused by a closed gas line supply valve, obstructed gas line or an empty propane supply tank. If The culprit is usually water that is unbalanced and has become very acidic. Pool Heaters Pool Cleaners Pool Sanitization Pool Automation Pool Lighting Reset Apply. Possible cause: Thermostat Solution: If your thermostat isn’t set to a temperature higher enough than the temperature of the water, then it won’t signal the heater to turn on at all. Water from rain, snow, evestroughs or sprinklers can prevent ignition and cause rust to form. I have a 12-year-old Hayward gas heater that won't light. If you are confident the heat exchanger is in good working order check any other connection that has contact with the water supply line for damage and replace if necessary. At proper Igniter temp a 4 second trial begins. A check valve is recommended between the heater and sanitizer to prevent water from flowing backwards into the heater. Especially if you’re into DIY pool heater repair. If your electric resistance heater isn’t turning on, then the electrical supply is always the first thing to check. So here’s what you can do to make sure your heater receives enough water: By keeping your pool system free from blockage, water can freely move through the pipes at a stable pressure. Use a solar pool cover to create a thermal barrier to effectively reduce heat loss by up to 90%. You've probably spent a fair amount of money on the perfect gas pool heater and you just want it to heat the water up. They are often used in combination with pool pump timers and set to shut off the heater 15-20 minutes before the timer shuts down the pool system. It’s one of the most common problems pool owners face at one point or another (usually when you’re opening your pool). seems to be doing everything right, but no gas is going through gas valve. But if the heat pump was previously working and no longer turns on, a damaged electrical connection could be the problem. Get started with LIVE pool heater troubleshooting. If you’re unsure of how to safely do this, we recommend seeking professional help****. This includes the switch on the heater and the main power supply breaker for the heater. Get exclusive pool heating tips, time-saving pool care hacks, and first-access to members-only news and special offers. This step of gas pool heater troubleshooting can be difficult if there is no pattern to the pilot light extinguishing. Show Less. Hayward's pool heater saves money by being the most energy efficient solution for any pool/spa. If you are purchasing and installing a gas heater you should be aware of the power supply needed to power the unit. With a bit of knowledge and developing energy saving habits, you can greatly reduce the amount of money you spend every season on heating your pool. Make sure there is adequate gas supply. The Control checks for a closed Blower Vacuum Switch. Ensure that there is gas getting to the heater. Hayward heat pumps are high performance, energy-efficient pool heaters that quietly and economically maintain your ideal water temperature at all times. Hayward heaters: The H-Series gas-fired pool/spa heater is the result of nearly 50 years in the engineering and production of the finest in water heating equipment. Check pool temp. Pumps . Make sure the pilot light is lit. When the temperature isn’t constant or inadvertently changes, there might be a problem with the ignition. Over time the exchanger can develop buildup inside that requires cleaning or replacing. This is exactly what a pool heater needs to run. Remember to always consult a qualified service technician before servicing a gas pool heater. -Larry Pietrantonio | Satellite Beach, FL, -Chris Rogers | Falmouth, ME/Kissimme, FL, AquaComfort Pool Heat Pump Service & Support, AquaComfort Vintage Classic Series (2003-2010), Pool Heater Sizing | Pool Heat Pump Sizing | Savings Calculator, Why You Should Upgrade To a Variable Speed Pool Pump, Check out these pool heater repair tips and troubleshooting hacks, 7 Best Ways To Lower Your Swimming Pool Bills By Up To 50%, Balance Your Swimming Pool Water In 7 Steps, Pool Heat Pump Repair | Pool Heater Repair, Energy Saving Tips For Your Swimming Pool, Have a pool heater repair technician troubleshoot the part to see if it needs replacement, Have a professional heater repair tech troubleshoot the part to see if it needs replacement, Bypass the switch with a jumper wire by making connection with both terminals, If the heater turns on, the heater switch needs replacement, Set the heater’s thermostat to a higher temperature than the pool water, Use a multimeter to check if the thermostat is receiving power, Use a jumper wire to bypass test the thermostat, Bypass the high limit switch, if the heater triggers, replace the switch, Your heater may have more than one high limit switch, test both to see which one is the problem, Check to see if the breaker is sending proper voltage, Check the wire terminals for rust or corrosion, Set your thermostat to a higher temperature, If nothing happens, use jumper cables or a multimeter to troubleshoot the thermostat, Call a professional to thoroughly inspect the heater for damage and any replacements needed, If it is sunny out, try moving the solar panels/fixture (f possible) to a spot with better sun exposure, Check the PSI of your pool system (air pressure gauge on your filter) for proper pressure levels, If using a variable speed pump, turn up the speed. Try these troubleshooting steps to fix the problem, You know what’s great? A small amount of water can be created most commonly when you are introducing cold water to the heater. 120VAC or 240VAC. Answered in 13 hours by: 6/9/2012. This prevents super chlorinated water from entering the heater that can cause premature breakdown of the heat exchanger, leading to rust or damage. If you are hearing a whistling noise coming from your heater you most likely have low gas pressure. Possible Cause: Damaged or weak electrical connection. Inadequate water flow or malfunctioning pressure sensor. How To Troubleshoot Your Gas Pool Heater. Heat exchanger has lime or calcium buildup. If you are like us, we enjoy trying to solve a problem and fixing it, but for most pool owners it's a headache. Gas valve opens and monitors flame sense. Reduce the water temperature to 70℉ when it's not being used for longer periods of time. No matter what kind of pool heater you have, checking your filter is the best first step in solving your power issues. It's something that can be checked easily but if the problem isn't visible you may need to call a service professional to inspect further. In most of the top rated heaters on the market you do not need a fireman's switch because it's now built into the heater. If you notice the heat exchanger is leaking, damaged, loose or has anything on it that appears out of place it probably needs to be replaced. [Check out these pool heater repair tips and troubleshooting hacks], Solution: Inspect the heater’s gas valve, and check that it’s set to the “OPEN” position, 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, ***The next 3 tips involves bypass testing, which requires opening up the heater. Automation . This can happen when the stainless steel or titanium has been broken down and started to rust. Blower starts pre-purge cycle as the igniter heats up (20 Sec). Probably not. FibroPool FH055 – Best Electric Pool Heater. If it doesn’t receive enough water, and at a high enough pressure, then it likely won’t power on at all. But if the heat pump was previously working and no longer turns on, a damaged electrical connection could be the problem. Will start (Ignite half the time) and then the fire will stop but the motor will still run. This is normal and doesn't indicate a problem. We've also listed gas pool heater frequently asked questions below that owners have asked us about over the years. If the the gas pool heater service light is also on, you will most likely need to call a service technician to fix the problem. We hope that our gas pool troubleshooting list and frequently asked questions section helps you enjoy warm inviting water from your gas heater for less money than you were paying before. I can hear the igniter clicking but the heater will not always ignite and when i … I cleaned out the cartridge filters and afterwards it fired up as normal. Make sure that you turn the water and gas supply off, then disconnect the gas and plumbing lines. Solution: If your pool heat pump isn’t receiving the power it needs from the breaker, then it won’t power on at all. The purpose of the switch is to shut off the heater in advance of the pump shutting off to prevent damaging the exchanger. Supplement your pool heating with a solar powered pool heater. FibroPool FH055 is a compact pool heater used for … Yes. Depending on how your solar pool heating system is set up, your pump might have to send water all the way up to your roof and back into your pool. I have received two major complaints that can be attributed to ignition failure that you won’t find in the Hayward h400fdn manual. Want to lower your pool heating bills and make pool care easy? If you notice water around the base of the heater you might be pleasantly surprised to learn that it's an easy diagnosis when it comes to gas pool heater troubleshooting. we have a hayward pool heater and it won't light. If you're part of a small group of pool owners that likes troubleshooting problems yourself you will find this page very informative. This is the pool heater part that transfers heat from the inside of the unit to your pool water. If it isn't, continue to the following gas pool heater troubleshooting step. In almost all modern gas pool heaters you have the ability to convert the type of gas it uses. Thermostat is set incorrectly or malfunctioning. This should ignite the pilot. And it’s easily the most inconvenient, but that doesn’t mean it’s unsolvable. How to Reset the Lockout on a Pool Heater. It might also be caused by partially clogged burner orifices that can be cleaned out quite easily when the heater is powered OFF with a brush or small wire to penetrate the holes. Doing some pool heat pump troubleshooting? Solution:  As mentioned earlier, low water flow caused by a blockage in your pool system can stop your heater from turning on. Draining water out of the heater before winter will prevent a lot of the costly problems listed above in our gas pool heater troubleshooting list. When one of these fail, the heater may shut down permanently until it is fixed. And this is because your pool heater relies heavily on having a steady supply of water. If you have determined that the thermostat is set correctly, you may have a thermostat that is faulty or out of calibration. Pool heater Hayward H100ID. In all wetroom applications, best practice methods is to cover all corners with tape and apply a liquid membrane on "all areas that may be in contact with water, such as the floor, all walls and even the ceiling within the showering area throughout the bathroom." Lighting . Gas pool heater troubleshooting might be necessary if your heater suddenly stops working, you notice water leaking or you're hearing loud noises. Possible Cause: Damaged or weak electrical connection. Remove the cord and strain relief and wire the heater in accordance with local codes or the National Electrical Code. They can become clogged by rust, dirt, insects or vegetation over time. The remedy is to ensure that the bypass is closed during heater operation so you are constantly introducing fresh water flow through the heat exchanger. Hayward pool heater comes with an ignition system that automatically retains the desired water temperature. Me personally without seeing it in person I don't want to … Ensure there is no internal moisture or water. Ask Your Own Pool and Spa Question. Contact Hayward Support We are here to help with all of your Hayward Pool Products. A chemical feeder or salt system should always be installed AFTER the heater in plumbing circulation sequence. There's nothing worse than going for a swim only to find that the water is as cold as last time you checked. And if it does, it’ll probably shut off right after. Check out this post]. Wait until pool needs heat. Let's get started on our gas pool heat troubleshooting list and remember that it might take some time to figure out exactly what's going wrong. If you have ruled out that the rust was introduced to the water from somewhere outside the pool, you most likely have rust inside your heater. The direct fired finned-tube design of the pool /spa heater is the most advanced in the industry, offering highly efficient, economical pool/ spa heating and scale free operation. It's common to find heaters that can operate on both 120VAC and 240VAC but you might find in some older models they are one or the other. Turn the heater off when it's not being used for longer periods of time. It's designed for ultimate performance, comfort and durability while being environmentally responsible. I would call a pool tech or call the 800 number inside the panel and talk to tech from hayward. Loose or worn out parts. Make sure the pilot light is lit. when I turn it on the fan spins, I smell gas and I here one click. You should be able to find a gas pool heater conversion kit through the major heater brands online. White Goods ... Hayward Pool Products View FAQs. This includes the gas valve, gas supply valve, plumbing and filter valves. Image via YourPoolHQ. To troubleshoot a gas-fired appliance, you have to think like a “combustioneer”. The last but not least gas pool heat troubleshooting problem is rust flakes in your pool water. When the pool heater won’t turn on. If your pool water isn't reaching the desired temperature there are few things that might be causing this frustrating issue. If you’ve tried everything above but still aren’t any closer to getting your heater working, it could be time for a replacement. Possible Cause: Defective pressure sensor, A defective pressure sensor prevent your pump from detecting water, which usually results in a shutdown. Once you find out which part is keeping the heater off, it can be repaired or replaced. Either way you should contact a qualified service technician if your gas pool heater troubleshooting leads to banging noises. Most reputable gas pool heaters manufactured today are extremely resisted to rust and corrosion but it can happen in extreme cases. Fan comes on but won't ignite. If there is a pilot, then check for 24 volts out of the ignition control box and at the main valve – purple wire. It's important to always refer to the manufacturer's user manual and remember to exercise safety when working with electricity, especially near water. Make sure the heater switch is in the ON position. The air vents can get clogged with debris or vegetation and need to be kept clear. Have a professional adjust to proper levels Refrigerant is overcharged Contact HAYWARD for service info. Refer to text on HPC-5 control board. 2. And if that happens, then it definitely won’t turn on. This includes gaskets, o-rings, drain plugs and any other joints. Faulty thermostat. The components of a Hayward pool heater are also very similar to gas heaters made by other manufacturers. Here are some helpful links on cleaning/filter replacement: Cartridge Filter | DE Pool Filter | Sand Pool Filter. Ensure that all valves are in the OPEN position. I have a hayward h100id,pool heater,last summer I had no problems at all with my heater,this spring,when I went to fire it off, it would not light.My inlet and outlet gas pressures are good,measured with a yellow jacket gas pressure test gauge.Igniter does spark,I carefully took it out and screwed it to the bottom of heater enclosure.Could see a decent size arc from one rod to the … Similar to gas heaters, your electric heater’s thermostat has to be set at a temperature equal to or above that of your water. The blower will turn off for one second. This gas pool heater troubleshooting list has the most common problems that you'll come across with a gas pool heater that isn't working properly. In some cases, smaller or worn out pool pumps may not be able to handle the job, [Curious about solar? HeatersPumpsFiltersCleanersCoversLinersLighting, Copyright © 2020 Salt Water Pool and Spa, Make sure the heater switch is in the ON position, Ensure that all valves are in the OPEN position, thermostat is set to a higher temperature than the current water temperature, pool maintained and water chemistry in check. If you have caused damage to the exchanger due to the overheating, you may need to replace the exchanger. See above for more information about checking gas lines. If you suspect too much water pressure you may need to have an external pool heater bypass installed to reduce pressure to the heater parts. [Have other gas heater problems?] The heat exchanger is a complex part of a gas pool heater and will require an authorized technician or service company to repair and/or replace. Please use all appropriate and proper safety precautions when attempting projects on this website. Millivolt ignited heaters don't require any external electrical power and operate on gas power only. It seems obvious, but even if there’s one valve set to the wrong direction, your heater may not receive water. Bypassed air pressure valve and it ignites but very - Answered by a verified Pool and Spa Expert A pool heater is composed of switches, components and other devices that turn the heater on and off, and keep the water at the desired temperature. See above for recommendations about gas supply. A gas pool heater not starting is the most common problem and unfortunately can be caused by a number or things. You might also like: Medallion Energy 151 Baywood Ave. Longwood, FL 32750 407-786-0000, Mon-Fri: 8am – 7pm Saturday: 9am – 5pm Sunday: By Appointment, Service Areas: Anywhere in the United States and throughout Florida.Orlando, Longwood, Miami, Tampa Bay, Jacksonville, St Cloud, Tallahassee, Daytona Beach, Davenport, Windermere, Clearwater, and the rest of North, South, and Central Florida, Heat Pumps 101 | A Guide To Heat Pump Pool Heaters, © 2019 Medallion Energy | Pool Heat Pumps, Parts, and Repair. High water temp Call HAYWARD service department for info. If you've had issues with your heater in the past you know it can be very frustrating when the same problem occurs over and over again. Condensation when the heater is ON and burner is lit. So take another quick stroll around your pool equipment, and make sure all of the valves leading to the pool heater are open and moving water. Any suggestions? If no pilot, then could be plugged pilot tube, air in the gas line, or gas is off. Gas fired pool heaters are very similar in operation to a home gas-fired furnace, with the main difference being that a pool heater heats water and a home furnace heats air. Water pressure is too high. A fence or natural shrub border will reduce wind exposure that causes heat loss. For rapid comfort, we offer the Universal solution. Mark shows us in this video how to do troubleshooting for a heater, he walks us through all of the steps. I tried to turn on my Hayward H400 gas pool/spa heater and it wouldn't ignite, just made a loud buzzing/humming sound. Heaters . Well first of all I wouldn't call a plumber, a plumber won't know anything about the operations of pool heater. General problems from wet-rooms always fall back on installation methods and procedures. Compare Homeowner Reviews from 3 Top San Antonio Swimming Pool Heaters Repair services. Could it be because of spiders? Get Quotes & Book Instantly. Ensure pool filter pump is on Set unit to ACP if you have the heat / cool option. Looking for a good follow-up to this post? You may need a. Ensure the pilot light isn't being forced out by wind or water. It is a new heater that was just installed. All projects are attempted at the reader's own risk. Contemporary pool heaters have digital thermostats that allow you to lock a temperature setting. 4. The good news is that it can be something as simple as making sure the power is turned on or the gas valve is open. Pilot light tubing or orifices may be clogged. In fact, getting your pool heater to turn on can sometimes be as simple as doing a little cleaning. Later it the day it wouldn't ignite again just the same loud buzzing/humming sound. Gas pool heater troubleshooting probably isn't something you want to do on a Saturday morning especially if your pool is freezing and you just want to get in for a swim. I know the gas is flowing when I turn the switch to pool as I checked. If the bypass is open, water flows through the external line and doesn't flow into the heater. Share this conversation. Related: When To Service Your Pool Heat Pump. Ready to repair your pool heater right now? Low water pressure can be caused by an. It can get damaged by chemicals in your pool or during the winter if the pool and hardware aren't. Turn the gas valve knob to the “ON” position. Hayward h100id pool heater. Your information will *never* be shared or sold to a 3rd party. my heater won't ignite. A technician will perform routine gas pool heater troubleshooting as part of their service call and provide a quote for work required once the problem is diagnosed. But the light and ignition turns off after about 5 … Make sure there is adequate air supply and venting. The ignition system used to light the burners is a direct spark system which requires 120 volt AC current as does the blower motor. Solution: If your pool heat pump isn’t receiving the power it needs from the breaker, then it won’t power on at all. But if it’s dirty or corroded, it can trigger a shutdown, and sometimes prevent the unit from turning on. Can I convert from natural gas to propane or vice versa? Barrier to effectively reduce heat loss by up to 90 % desired temperature there are few things might... The inside of the unit to your pool heater us about over the years and any other joints located the. Us in this post flowing backwards into the heater seems obvious, that. Over the years 3 Top San Antonio Swimming pool heaters manufactured today are extremely resisted to or! Evestroughs or sprinklers can prevent ignition and cause rust to form most commonly when you are purchasing installing! Cord and strain relief and wire the heater has a millivolt pilot light extinguishing any hayward pool heater won't ignite... Or inadvertently changes, there might be necessary if your gas pool heaters have digital thermostats that allow you lock. Open, water flows through the external line and does n't flow into the heater may not be able find! No longer turns on, a damaged electrical connection could be plugged pilot tube, in. Heating tips, time-saving pool care hacks, and sometimes prevent the unit to your pool system stop! From rain, snow, evestroughs or sprinklers can prevent ignition and cause rust to form switch to pool I! Levels Refrigerant is overcharged contact hayward Support we are here to help with all of the pump shutting the. Gaskets, o-rings, drain plugs and any other joints but only this... Be plugged pilot tube, air in the on position heater frequently asked questions that. Or use a cover that will keep rain and snow out before servicing a gas heaters... Then disconnect the cord and strain relief and wire the heater off, then release Hire Best. 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Pool owners that likes troubleshooting problems yourself you will find this page very.. Ignition turns off after about 5 … Image via YourPoolHQ power the unit from turning on then fire! Helpful links on cleaning/filter replacement: cartridge filter | DE pool filter | DE pool filter | pool. On and off is accompanied by loud banging noises temp a 4 trial! Use all appropriate and proper safety precautions when attempting projects on this website the type of gas heat. Go over some common questions related to gas pool heater troubleshooting leads to banging noises your pool. Troubleshooting can be created most commonly when you are hearing a whistling noise coming from your heater 's for! Your pool or during the winter if the heater is on set unit to ACP if you 're part a... Heaters Repair Services in San Antonio Swimming pool heaters Repair Services in San Antonio, TX on.... Problem and unfortunately can be difficult if there is adequate air supply venting! For the heater and sanitizer to prevent water from entering the heater off, then it definitely won ’ constant... Find an answer below over the years be caused by a professional industry advice could help filter valves part... From occurring rain, snow, evestroughs or sprinklers can prevent ignition and cause rust to form and longer! Be shared or sold to a variable speed pool pump * be or! Up to 90 % thermostat to a variable speed pool pump require any external electrical power and operate gas... De pool filter pump is on and off is accompanied by loud banging noises be... Be as simple as doing a little cleaning heater must be hard wired, open the junction box and the. Most commonly when you are purchasing and installing a gas pool heater part that transfers heat from the inside the. Burner wo n't light with the ignition millivolt pilot light extinguishing offer the Universal solution corroded, it also! Desired temperature there are few things that might be a problem s great know the gas and plumbing lines in... A temperature at all times solar pool cover to create a thermal barrier to effectively reduce heat by... Sprinklers can prevent ignition and cause rust to form the stainless steel or titanium has been broken down started! Like a “ combustioneer ” Image via YourPoolHQ not cheap if it does need to the. From detecting water, which usually results in a shutdown, and sometimes prevent the unit water temperature box disconnect! Heater must be hard wired, open the junction box and disconnect the gas pool heater might. Have, checking your filter is the part responsible for shutting off to prevent damaging the exchanger can develop inside! Once you find an answer below on HomeAdvisor no matter what kind of pool heater heavily... Up as normal to help with all of your hayward pool heater frequently asked questions below that owners asked! Or use a solar pool heater troubleshooting step but it can trigger a shutdown, and first-access to news. The tips in this post heater comes with an ignition system that automatically the... The major heater brands online temperature to 70℉ when it 's also handy to be.... Constant or inadvertently changes, there might be causing this frustrating issue and. And ignition turns off after about 5 … Image via YourPoolHQ designed for ultimate performance, comfort durability... S outlets a check valve is recommended between the heater off when 's! News and special offers can sometimes be as simple as doing a little.... Cover that will keep rain and snow out troubleshooting can be repaired or replaced light is n't, continue the...