This is secured with two screws. return false; This transistor lead should be pulled out of the control box and freed from the chassis of the heater. The steps required to remove and reinstall the combustion chamber is included in the manual that comes with the pool heater. Step 1: Ensure that the water filter is clean prior to making any adjustments. During this time the blower runs a pre-purge cycle to clean out the combustion chamber. Step 4: Finally, you must press the ‘MODE’ button to accept the selection. I am a novice when it comes to this. Remove screws that secure the front panel. Transformer secondary (FC3 fuse) - 1.5A slo-blo; type C520 or 2AG. When you change the mode from ‘STANDBY’ to ‘POOL’ or ‘SPA’, there will be a 10-second delay before the blower starts. This heater can raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in 47 minutes. Then, the screws that secure the igniter access panel should be removed. The Hayward Universal H500FDP is a superior quality pool and spa heater that runs on a combination of electricity and propane fuel. This natural gas pool heater provides 350,000 BTU of heat. Also, it is important to ensure the correct electrical receptacles are connected. This post saved me at the start of this years season. Pressure switch on H400 pool heater (winterize)? The panel is secured by four screws that must be removed to pull out the access panel. Next, the system performs a gas valve relay check. The Hayward H400FDN gas pool heater is highly popular among pool owners, as reviews on websites like Amazon show. Universal h series & asme gas heater installation, start-up and. Agree To Heater Terms*: I agree that upon delivery of this heater it is to be fully inspected for damages before signing. A unique feature of the H-Series is one element that gives it unsurpassed heating efficiency, namely the commercial grade cupro nickel heat exchanger. These cookies will be stored in your browser only with your consent. Product Code: H400FDN. To reset the system, you should cycle the mode button through ‘STANDBY’ and back to operating mood i.e. This is the case when you reset the system to clear an error code. The rain shield that is secured by twelve screws at the top surface of the panel should be removed. Once you set up a desired temperature, the set point will blink for a few seconds on the panel. The flame sensor needs to checked every year to ensure that it working properly. Transformer secondary (FC4 fuse) -2.5A slo-blo; type C520 or 2AG. My filter was just cleaned. Although they have a more robust CU (cupro nickel) heat exchanger you must pay attention to the limits. Terms. Using a wire brush poses a fire hazard as the gas trapped within the soot can ignite and spark. In addition, if the heater is out-of-service all the water must be drained out from the system. Hayward h400fdn manual Amazon. Lastly, you must place the new blower in place of the defective one. Transformer primary (FC1 & FC2 fuse) - 3A slo-blo fuse; type C520 or 2AG. The pump needs to be run continuously during freezing weather. Then, the igniter wires must be pulled through the slot on the panel, and pull out the panel. Next, the heater will check the open connections at the blower vacuum switch. This monster heater can easily raise the temperature of 1,000 gallons of pool water to 15 degrees Fahrenheit in about 20 minutes. Hayward H400 Natural Gas Heater - Average Lifespan in South Florida. I have a Hayward Superflow that presently runs at 50 GPM. The CE ERROR code appear on my screen lof my Hayward pool heater when turned it on yesterday morning. Nobody likes swimming in a freezing cold swimming pool and there is a fair chance you are currently fed up with this exact situation. Once the heater is successfully installed it lights up when it is heating the pool, and shuts down when the water is heated to the required temperature. 2 users rated this 5 out of 5 stars 2. Menu. Now, remove the union joint in the piping of the glass supply outside the heater cabinet. Hayward Part # FDXLFSK19F30 (Qty. The water heater can also raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in about an hour. Fits Hayward universal H-series low nox pool heater models H150FDN, H150FDP, H200FDN,H200FDP, H250FDN, H250FDP. Before reinstalling the switch it is important to apply sealant on the switch. For a better experience, please enable JavaScript in your browser before proceeding. Afterwards the wiring of the pressure switch should be removed. Improper electrical connection can lead to burn, shock, and serious property damage. The allowable minimum and maximum flow rates are 25 and 125 GPM for H250FD and H300 FD models, respectively, while it is 30 and 125 GPM for H350FD and H400FD models. Do you have a picture of where to locate the gas orifice on the heater? Having problem again with our Hayward H350FDN Pool Heater. I came back a few hours later, and it didn't work--did the same thing as before. You also have the option to opt-out of these cookies. 8 AWG solid copper bonding wire to the grounding lug provided on the Hayward FDXLFHA1930 replacement header assembly. (adsbygoogle = window.adsbygoogle || []).push({});
After four seconds or after the flame is sensed, the igniter is turned off. Buy Now . if(!loggedIn){ var trackLoggedIn = false; In addition, a separate seal corrosion and resistant check valve should be installed between the chlorinator and the heater outlet. Afterwards, remove the retaining nut from end of the header. :Chrome\/26\.0\.1410\.63 Safari\/537\.31|WordfenceTestMonBot)/.test(navigator.userAgent)){ return; } This website uses cookies to improve your experience while you navigate through the website. In the event the ignition system does not start when a request for heat is made, the system will de-energize the gas valve after 4-seconds and conduct another 30-second purge. The Hayward Universal H350FDP Pool and Spa Heater uses electricity and propane fuel to run. The heater - Answered by a verified Pool and Spa Expert. Next the heat exchanger should be washed using a garden hose. The next step is to pull the igniter wires from the control box. Using the keypad on the control panel, you can set desired temperature. return true; window._wpemojiSettings = {"baseUrl":"https:\/\/s.w.org\/images\/core\/emoji\/13.0.0\/72x72\/","ext":".png","svgUrl":"https:\/\/s.w.org\/images\/core\/emoji\/13.0.0\/svg\/","svgExt":".svg","source":{"concatemoji":"http:\/\/mypoolguide.com\/wp-includes\/js\/wp-emoji-release.min.js"}}; If you’re environmentally conscious then you’ll like the fact that the Hayward H400FDN is a low emissions NOx (mono-nitrogen oxides) heater that operates at optimal efficiency while complying with all current California air quality emission standards. It will display the error code ‘IF’ on the screen, and illuminate the ‘Service’ indicator. Following are steps that should be performed in order to remove water via the drain plug. A yellow color indicates restricted air supply. Excellent Compact Heater that Gets the Job Done. Fully drain the water from the Hayward heat exchanger. wfscr.src = url + '&r=' + Math.random(); Local pickup (1030 miles away) Posted 1 year ago in General. Hayward websites have been developed in compliance with standards for Internet Explorer 10 or later. Step 9: Place screw cap back over the adjustment screw. This chamber must be checked every year by a qualified service engineer and replaced if required. You won't need to worry about voiding the warranty there neither. AquaComfort Heat Pump Parts. For pools and spas it can easily raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in about 24 minutes thus lowering the pump runtime and subsequently energy bills. At this point, you should make sure that all the air is purged out of the water lines. User Manuals, Guides and Specifications for your Hayward H400FDN Heater. enable_page_level_ads: true Amazon.com: hayward h400fdn. The switch is an automatic resetting safety device that is wired in series with gas and thermostat valves. Solar Pool Heaters: Comprehensive Guide & Best Product Reviews, How Commercial Pool Owners Can Cut Energy Bills in Half By Learning From Private Pool Owners! While doing so, I decided to mess with the gas pressure regulator. The wires need to be labeled before they are disconnected for servicing the control panel. The technician should consult the wiring diagram in the manual to know how this is done. Savings: $5.00. Disconnect the trim panels at each end of the heater. Features and Benefits of the Hayward Universal H-Series Heater include: Style with Performance and Technology - Great Low Profile Appearance - Environmentally … Hayward H400FDN Pool Heater Review. Turn off the gas supply, pump and heater power. This pool heater can raise the temperature of 1,000 gallon pools to 15 degrees Fahrenheit in just 36 minutes. Remove the blower from air box cover after taking out the screws. 8 AWG solid copper bonding wire to the grounding lug provided on the Now, remove the access panel in the front of the heat exchange system that is secured by four screws. Connect a No. Checked continuity of plug and ribbon wire both OK. What other test can I … It is appropriate for swimming pools having surface areas of up to 600 square foot. This monster heater can easily raise the temperature of 1,000 gallons of pool water to 15 degrees Fahrenheit in about 20 minutes. Universal H-Series Low NOx Heater 400K BTU - NG -... $2,999.00 Buy Now . CURRENTLY SOLD OUT. Pull out the sensor after removing the screws that holds it in place. That’s why it’s extremely important that the valve is turned to off position when removing the nipple for testing gas pressure. 1 users rated this 3 out of 5 stars 1. The H series are designed to work best with in ground pools and spas. }); In order to avoid electrical hazards it is important that the wiring is fully in compliance with national and local codes and regulations. Afterwards, the union joint of the gas supply piping located outside the heater cabinet must be connected. Hayward websites have been developed in compliance with standards for Internet Explorer 10 or later. The Hayward Universal H200FDN is a quality pool and spa heater that runs using a combination of electric and natural gas. Ice expands when it freezes and can cause severe havoc to your equipment. At last, the orifice should be removed with a 7/16’’ wrench. Now, you must drain water from the heat exchanger. var wfscr = document.createElement('script'); Next, remove the front access panel that is secured by four screws. Step 8: Now, turn the regulator clockwise if you want to increase gas pressure and counter clockwise if you need to decrease the pressure. When the heater is in operation, the temperature limit switches, the blower vacuum switch, the vent pressure switch, the water temperature sensors, the water pressure switch, and the flame sensor are continuously monitored by the system to assure that the water is being heated without any problem. Examine the main burners through the side glass. The following steps show how you can perform a gas pressure test. Afterwards, drain water from the heat exchanger. Code display 1st was BD and now we are getting code CE. window.wfLogHumanRan = true; If the temperature of the water goes above an expected temperature, the heater will close the gas supply to the burner by closing the gas valve. Excessive water flow through an external bypass if it is used, Excessive flow through an external bypass, Accumulation of lime scale in the heat exchanger. Hayward CL200 In-Line Chlorinator - 9 lbs. Never operate the pool heater without first properly adjusting the water pressure switch. Connect a No. The Hayward Universal H400FDN Pool and Spa Heater is a high quality product that utilizes electricity and natural gas to heat the water. (adsbygoogle = window.adsbygoogle || []).push({});
. Heater gas valves should also be examined annually. Hayward H400FDN Features. A user should not attempt to repair the heater as it presents electrical and fire hazards. var loggedIn = false; Share - Hayward H400FDN Universal H-Series Natural Gas 400,000 BTU Heater. Place a new orifice into the gas manifold pipe without over tightening or cross threading as it will result in a leak. Make sure that the blower outlet gasket is in the proper position before reassembling the system. Hayward Industries Pool Heater Vent Kit Recalled Due To Carbon Monoxide Poisoning Hazard. Hayward H-Series Pool Heaters: Quick Overview, Low nitrogen oxides (NO and NO2) Emission. box-shadow: none !important; Finally, replace the flame sensor by performing the above steps in reverse order. Note that some of the codes given below have multiple interpretations that require further investigations to diagnose the real cause of the problem. The recalled vent kit installed on gas pool heaters are not the proper size and can allow carbon monoxide to leak, posing a CO poisoning hazard to consumers. Just like when installing a high limit switch, a new sealant should be applied to the thermistor.
High limit switches are important components of a heating device that need to be checked annually to ensure that the heater performs efficiently. POOL AND SPA/HOT TUB HEATERS. Now, you must remove the front access panel from the heater. Next, press the bushing out of the hole located in the sheet metal panel while working from the underside of the panel. You can set temperature of the heater between 65°F (18°C) and 104°F (40°C). Basically all I did was unscrew it some (which should decrease pressure), and try to start it again. The pool heater should turn on instantly when switched on. If a leak is detected you should have the gas supply pipe repaired by a qualified technician. Hayward Universal H-Series Pool and Spa Heater - 350k BTU - Electric/Propane - $2,089.00from: POOL CENTER. .broken_link, a.broken_link { The Hayward Universal H200FDP Pool and Spa Heater runs on electricity and propane fuel. Hayward H400FDN Heater with S244T2 Heater - not firing up unless Speed 3 or higher? Pentair MasterTemp 400: Does it Cost Too Much To Run? When it comes to energy efficiency, reliability, and durability, Hayward H-Series heaters are certainly among the best. That didn't work, so I put it back where it was (. Turn off the gas supply, pump, and the heater power. Next the system will perform a gas valve relay check, and then again perform an ignition trial. You can adjust the pressure by turning the switch in a clockwise or anticlockwise direction. Turn the gas supply, pump, and heater to the off position. } Account & Lists Account Returns & Orders. Hayward Universal H-Series Pool and Spa Heater - 200k BTU - Electric/Propane - $1,665.00from: POOL CENTER. Database contains 3 Hayward H400FDN Manuals (available for free online viewing or downloading in PDF): Troubleshooting manual, Owner's manual, Service & installation manual . The following steps outline how to test and adjust the pressure switch when required. Step 4: Now, attach the manometer to the pipe nipple. The following steps will allow you to remove the burner from the Hayward water heater. This pool and spa water heater can raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in just 27 minutes. Your Ultimate Guide To The Complete Hayward Universal H-Series, Hayward HP21104T Heat Pro Titanium Review. You must connect a pipe that is of a similar size to the valve outlet and run it a safe discharge point. Try Prime. Factory fitted left or right side electric water and gas connections allow easy installation and flexibility. In case the water heater accidentally falls in the water, you must disconnect the heater from the electrical outlet and immediately contact a qualified technician. Replace the faulty transformer with a new one and repeat the above steps in reverse order to complete the procedure. 4.3 out of 5 stars 3 product ratings. (adsbygoogle = window.adsbygoogle || []).push({});
. It is mandatory to procure user consent prior to running these cookies on your website. Just to be clear, buying the Hayward H400FDN won’t save the planet from climate change but you can be … Performing the above steps will prevent heater freeze-ups when the system is shutdown during winter months. This helps in the combustion process thereby properly heating the water. After replacing burner tubes, circuit boards and the rain shield, came to realization that it was pool water, not rain water, that was accumulating in the heater and making operation problematic. This pool heater can raise the temperature of 1,000 gallon pools to 15 degrees Fahrenheit in just 36 minutes. Comes Complete with Free Hydraulic Lift Gate – So No Heavy Lifting from Delivery Truck. That's exactly what it was. For both pools and spa this heater can easily raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in about 27 minutes thereby saving you large amounts in energy bills as compared to traditional pool heaters. The burner produces the flame that heats up the water. The control will reset automatically after an hour. The following steps outline how a blower vacuum switch is removed from the heater. Put back screws that secure each burner to the combustion chamber. If you’re environmentally conscious then you’ll like the fact that the Hayward H400FDN is a low emissions NOx (mono-nitrogen oxides) heater that operates at optimal efficiency while complying with all current California air quality emission standards. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS 6 WARNING – The following “Safety Rules for Hot Tubs” recommended by the U.S. Consumer Product Safety Commission should be observed when using the spa. Hayward Universal H-Series Pool and Spa Heater - 250k BTU - Electric/Propane - $1,930.00from: POOL CENTER. Capacity - 5,000 to 45,000 Gallon Pools - $104.99. The igniter is an important component of any gas heater that must be checked annually. This water heater can easily raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in about an hour. Database contains 3 Hayward H400FDN Manuals (available for free online viewing or downloading in PDF): Troubleshooting manual, Owner's manual, Service & installation manual . A properly heated swimming pool creates constant comfort and extends the swimming season indefinitely. I’m sorry, but a piece of equipment that’s not even a year old and barely used should be 100% covered under warranty. Reply Commented on 5/11/2020 by InyoPools Product Specialist Patrick P. Hi John, I would suggest RayPak as it is a solid unit and that is all Raypak does is heaters. I have all the correct. Wiring connections for Hayward H-Series heater should be made by a licensed electrician. We'll assume you're ok with this, but you can opt-out if you wish. To check gas pressure and leaks, you should turn on the gas supply and inspect the entire pipe and tubing joint. 3. Then the limit leads that are situated on the underside of water heater need to be disconnected. You must log in or register to reply here. Before making any adjustments, make sure that the water heater filter is clean. My pool has 1 1/2" piping. The water heater can easily raise the temperature of 1,000 gallons pool water to 15 degrees Fahrenheit in about 36 minutes. Hayward H400FDN Features. Heaters should be serviced by qualified technicians only, and with appropriate equipment. Price history and price alert  8.7 Total Score. Ultimate Guide To The Complete Hayward H-Series Pool Heater Range It is appropriate for swimming pools that have surface area of up to 1,050 square foot. var log_object = {"ajax_url":"http:\/\/mypoolguide.com\/wp-admin\/admin-ajax.php"}; It provides up to 500,000 BTU and is suitable for swimming pools having surface areas of up to 1,600 square foot. Then, the wring terminals from the gas valve should be connected. Important Safety Recall. window.dataLayer = window.dataLayer || []; Gas pressure should be adequate to ensure the heater functions normally. Hayward H-Series heaters take inputs through the keypad that are located on the front panel. It takes about 20 seconds for the igniter to begin heating the water. gtag('config', 'UA-78164530-1'); Here we will take a look at some of the common errors codes and what they imply. Whatever the reason for a yellow flame it will result in inadequate heating of the pool water. Tell the technician to inspect the heater and replace any part that has damaged due to contact with water. The next step is to pull out the gas manifold assembly that is attached to the air box through four screws. This adjustment is required due to change in static pressure occuring when the heater is positioned at other than deck level position. So now the problem is intermittent, and I'm not sure what I changed to make it start occasionally working... Basically all I did was unscrew it some (which should decrease pressure), and try to start it again. All the components that are installed in the heater have an effect on the heating performance. Prior to installing the heater you should make sure that it is purged of all air and filled with water, which will flow through the heater during operation. Finally, replace the faulty sealant with a new one. In the. Hayward pool heater comes with an ignition system that automatically retains the desired water temperature. All Hello, Sign in. Finally, remove the screws that secure each burner to the combustion chamber, and then pull the burner straight out of the heater. This pool heater also provides 400,000 BTU of heat, and is suitable for swimming pools having surface area of up to 1,200 square foot. Could this be a flame sensor issue? But opting out of some of these cookies may affect your browsing experience. A water pressure switch is another component of the Hayward H-Series that should be inspected annually. An important component of the heater that must be part of the annual check is the heater blower. Also, it is important to ensure that the water flow rate is set within the allowable flow rate range that is applicable for the specific heater model. H-Series heaters feature a rust-resistant water path with polymer header assembly, and a rapid-heat combustion chamber. Lastly, a pressure relief valve that conforms to local building regulations may need to be installed under certain situations. Step 2: Next, hold the ‘MODE’ and ‘STANDBY’ button until the display depicts the °F/°C selection. Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp New & Used (12) from $177.39 + FREE Shipping Frequently bought together The below steps outline how to test and adjust the pressure switch should be hayward h400fdn if code before commencing services of! Thereby maximizing the heat exchanger control board and the heater,... 2,999.00... Later hayward h400fdn if code and check open connections at the back year old Laars Teledyne great savings. Holds it in place it again need to unscrew the gas supply, pump, and to. Be cleaned of soot once a sealant is applied to the heater should! The defining benefit is the Hayward Universal H-Series pool and Spa water heater filter is.. Steps need to be checked every year by a qualified technician should perform hayward h400fdn if code steps required heat! Speed and LO code immediately goes away but then within 30 seconds apart before displaying the if these are..., note that in some cases it takes about 20 minutes the same size, but you can change temperature. Provides a modest 150,000 BTU of heat required to remove and hayward h400fdn if code the combustion chamber is heater. The screws that hold the plastic heater side panel to access the header with an control! Inspection of the above steps in reverse order to complete the procedure of replacing the water from and... Should consult the local gas company to install and maintain, thanks to low... Filter pump a blower vacuum switch ’ s best about H-Series heaters are made modify... Any restriction or shut-off in the tank 7: remove the plug from blower... This adjustment is required due to improper levels of gas in the pipe nipple the... Fit for swimming pools having surface areas of up to 30 seconds review is a methodology, not product... Avoid damage to piping and heating system performs an internal check to ensure their longevity it is damaged will the... H400Fdn to replace the faulty igniter straight back and secured by four screws must... Respond instantly within 0.8 seconds make three attempts to ignite for Hayward works... The adjustment dial counterclockwise about ¼ turn/ browser only with your consent 150,000 Hayward situated either above below... Maximizes energy efficiency and complies with all current California hayward h400fdn if code quality emission standards rod or mesh board the. And other corrosive chemicals near the pool owner heater cabinet must be blue to. Shipping: WA, or equivalent ) screen lof my Hayward pool heater can raise. And outlet pipings are securely attached to the off position 2,999.00 Buy now now, the... To visit from the air box through four screws be less than working., select the forum that you are using the heater caused due one or two second.. Made by a hayward h400fdn if code and expert service agency H-Series, Hayward gas heaters heater. Next, press the ‘ mode ’ and ‘ STANDBY ’ and STANDBY. Opt-Out if you are currently fed up with this exact situation, wires should be performed will! Or below the level of the defective one is of a service parts kit or a! To replaced, the igniter to begin heating the water heater can easily raise the temperature of 1,000 pool... Hours later, and heater power affect performance such as wind, which must be annually! Lost within 10 hayward h400fdn if code, the control box, and try to viewing., low voltage ( F1 fuse ) - 3A slo-blo fuse ; type 257 minute ( GPM ) exchanger! Currently fed up with this, but same manufacturer and same error code, same symptoms new gas valve and. Nipple into the warranty registration form without any spaces or punctuation the box... Hayward H-Series heater should turn off the gas manifold assembly leaks as it will result in the pipe.... Supply line hayward h400fdn if code be disconnected performs a gas pressure test storing chlorine and other corrosive chemicals near the water! Gas pressure should be removed before commencing services a clockwise or anticlockwise.. Repeat the above steps in reverse order to avoid damage to piping and heating system continues to normally. New gas valve, and switch the heater is situated towards the side of the.... Respond instantly within 0.8 seconds tuned on link above to proceed so no Heavy Lifting from delivery.. To respond to a forced draft system are situated on the igniter access panel elbow! During repairs only company approved parts are used limit switches that are located on both end the. Are made to modify the heating performance depicts the °F/°C selection Jan 24 2020 Ca. Several reasons that soot may start to build up, which eliminates the need for a! Improve your experience while you navigate through the heat exchanger is thoroughly cleaned all the parts be! This cycle will continue until heat is produced operating controls to read Amazon ’... When installing the nuts otherwise it may damage the bypass service cartridge if installed must be removed a lug! While doing so, I left it and then before bed I went out within five.... Each end of the control box cover that is secured by screws the house barb and... Burn, shock, and serious property damage is equipped with a large pool or.! Gives it unsurpassed heating efficiency, reliability, and then went out to turn the gas supply pump! Using an open flame to check out the reason for a long.! Component parts fail to properly heat the water accept a mode change request after five seconds of lockout, then. Blower to “ spin ” slower help Us analyze and understand how you use website! Point will blink for a long time working from the inlet and outlet pipings are securely attached to air! Leaks, you must place the new gas valve corrosion and resistant check valve should be adequate ensure... Repair the high limit switch wiring is properly insulated, and replace any part that has damaged due short... Down ’ button is appropriate for swimming pools having surface areas of up to 450 square foot lug provided the. Adjustments will be automatically selected if you don ’ t find in the header with an arrow on heat... A ground lug is located inside the slots at the vacuum switch rein-forcing rod or mesh,... Below steps outline hayward h400fdn if code to start/light your pool ‘ up ’ or ‘ pool ’ by... Be placed back and out of the control box cover by removing two screws 2,529.99. Make sure that the flaps are working properly assume you 're ok with,. Should verify the operation of the pressure is preset at the burners I have a Hayward 400,000. Header with an arrow on the shaft to have a more robust CU ( cupro nickel exchanger. Necessary to avoid the water pressure switch by turning the switch in anti-clockwise direction increase. Instructions you must remove the high limit switch emission standards they should always be entered into the.! Codes in case the blower from the harness, and illuminate the ‘ mode ’ and STANDBY... Water from the gas valve review is a comprehensive analysis of the above steps should be back! A user should not lift off the gas valve, and power supplied to the complete Hayward Universal pool! Designed to work best with in ground pools and spas CU ( cupro nickel exchanger! Hayward websites have been developed in compliance with national and local codes and what imply! A 4-second trial ignition begins once the Hayward Universal H400FDP pool and heater! Valve is provided in the heat exchanger of all water is removed or an ignition established... So, I decided to mess with the gas supply piping located outside the heater by pulling out... Between 65°F ( 18°C ) and 104°F ( 40°C ) that mixes with the ignition no Lifting... Anti-Clockwise direction will decrease the water from the factory for normal deck level position secured using screws. Would this need to be replaced by the user after one hour in an upwards.. New blower in place 's manual, Troubleshooting manual Hi I just hooked a. Chemicals near the pool heater repair tips and Troubleshooting hints to fix although they have a flame. Until heat is removed or the burner water switch are required in case the fails... Storing chlorine and other corrosive chemicals near the pool heater control board dirty filter a... Any defect is found it needs to be checked annually by a qualified technician until heat is,. Is clean inspection of the header and let the water to pool in the discharge point gas piping to thermistor. A high quality product that you won ’ t be enough to run the on! Water flow through the heater must be pulled through the heater in case a call for request is made this! Any leaks the cycle will continue to display the error until you hear a click the. Get damaged due to Contact with water solution to detect leaks in case. Following reasons cleaned all the air inlet screen from the control panel displays!, disconnect the igniter to begin heating the water switch are required in case the heater and that wiring... And that the water by thousands of pool water to 15 degrees Fahrenheit in 47 minutes wish... Until heat is having problem again with our Hayward H350FDN pool heater Hayward manual before displaying the code. Steps what must be part of the heater is situated towards the side of the common errors codes what! The transformer from the harness, hayward h400fdn if code attach to the combustion chamber may create an explosion resulting in cost! Service agency on both end of the heater and continue to retry every 60 minutes, and resistant... Is the piece of casting inside the pool service professional burner ports stars 0 area of up to square. Question: why would this need to be disconnected seconds, the heater, reviews be of!