Hayward pool heater says lo

This blower vacuum switch is designed to use with Hayward Universal H-Series Low NOx pool heater models H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP. Weighs 4.8 pounds.

Stumbling upon a 'LO' code on your Hayward heater can be quite the head-scratcher. Don't worry, you're about to unravel the mystery behind this cryptic message. This code typically indicates a water temperature sensor error, but it can also be a sign of other underlying issues with your pool heater. In this article, you'll learn the steps to diagnose and fix the problem, ensuring your pool remainsHI, I have a Hayward Pool Heater Lo Hox (I think the name) it is about 40,000 BTU natural gas 240 Volt. Blower moter in side. It has ran great for the past 6 or so years. Last fall I was in the pool house when it was running (fine). We had a sudden power failure (my wife turned off the pump) it made a bad sound she quickly turned on the pump.Hayward 100K BTU HeatPro Heat and Cool Pump. $ 4,299.00. Pay over time with Bread. Hayward 100K Heating & Cooling capability includes active defrost for low ambient operation. Unit will heat and cool water to maintain the desired temperature. Multi-speed fan modulates speed automatically for quiet, energy-efficient operation.Hayward products including, quick reference guides, troubleshooting steps, and product support videos. ... Learn about maintenance, innovation, pool safety & other insights from Hayward. Explore. FAQs. Explore our deep knowledge base of frequently asked questions. Explore. Tools. ... Universal H Series and ASME Gas Heater Installation, Start-up ...I have a Hayward H250 Natural Gas Inground Pool Heater. The display reads "LO" and it won't allow me to raise the - Answered by a verified Pool and Spa Expert ... my hayward h250 pool heater temperature says its 20 deg higher then it really is,when i raise the temp and the unit fires the digital reading goes up even tho the pool water is lower ...400,000 BTU heating capacity. Fits directly against walls, fences, or other equipment. Competitive heaters require 6–12" wall clearance. Ultra-compact frame for easy drop-in replacement. Dual-fuel tech switches between natural gas and liquid propane. Allows for in-field conversion with a quarter-turn.Pool Length m: 10: Pool Width m: 6: Pool A. Depth m: 1.4: Pool surface area sq.m: 60: Pool surface area sq.ft: 645.6: Pool Volume cu.m: 84: Pool volume litrs: 84000: Pool Volume USGallons: 22176: Turnover time hr: 6: Flow rate required gpm : Flow rate required cu.m/h : Water Temperature Required deg C : Air temperature around pool deg C ...If your Hayward pool heater is displaying the LO code, it means that the limit string is open and the heater will shut down and enter lockout mode. To fix the problem and close the limit string, you’ll need to wait 2 minutes for the automatic restart.

Steps to Properly Shut Down Your Pool Heater. Step 1: Turn off the power supply to the heater. Step 2: Disconnect the gas supply to the heater. Step 3: Turn off the pool pump and wait for the water to cool. Step 4: Open the heater's drain valve and drain the water from the system.This includes the switch on the heater and the main power supply breaker for the heater. Ensure that all valves are in the OPEN position. This includes the gas valve, gas supply valve, plumbing and filter valves. Make sure the pilot light is lit. If it isn't, continue to the following gas pool heater troubleshooting step.The hayward pool heater p5 code can be prevented and maintained through regular cleaning and inspection of the heater components. ... Invest in the hayward pool heater p5 code and experience the ultimate heating performance for your pool. Say goodbye to chilly waters and hello to luxurious warmth with this top-of-the-line pool heater. Trust ...Hayward H350FDN Pdf User Manuals. View online or download Hayward H350FDN Owner's Manual, Troubleshooting Manual ... LO" Code. 46. Pressure Switch Adjustment. 49. IF" Code. 52. AC" Code. 57. AO" Code. 58. ... Brand: Hayward | Category: Swimming Pool Heater | Size: 1.88 MB Table of Contents. Table of Contents. 2 ...When your Hayward pool heater flashes the 'bo code', it's signaling that there's an issue with the bypass operation. Here's a strategic approach to get your heater back to optimal functionality. Reset the Heater: Turn off the heater and the circuit breaker for 30 seconds. Power up the system again to see if the 'bo code' persists.Mar 16, 2018. #1. We have a Hayward H400IDL2 pool heater that ignites and runs normally at start up. After about 10 minutes it begins to repeatedly cycle off and on before finally throwing an IF code. We've had multiple service calls from 2 different pool companies and have replaced the gas valve, flame sensor, igniter and control board.

You don't need a fancy test meter to troubleshoot a pool heater. ELECTRONIC POOL HEATER TROUBLESHOOTING GUIDES. For our example heater, we will be using the Old Teledyne Laars Series I & Series II Spark Ignition heaters, made from 1986-1997; but the concepts apply to electronic heaters made by Raypak, Hayward or Purex - RP2100, H-Series or ...One of the most common calls we receive during season is the FLO error on a pool heater. Learn more about what causes this error and how we resolve it.Plaster. Chlorine. Salt Water Generator. SWG Type. Pentair Intellichlor IC-60. May 12, 2023. #2. The F5 code seems to be related to the HP being in defrost mode. The F5 code is different then the 5F code which is a bad temperature sensor.Pump is running, water is flowing through heater, heater plugged in, gas on. Service panel says Lo and "service". I've tried switching mode to pool with a heat setting of 80F ... HI My Hayward Hseries pool heater shows a LO and stops working when it rains. My temp dropped from 92 to 80.

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Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. Possible Cause: Gas supply valve. 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. Possible Cause: Pilot light isn't lit.Hayward H400 Installation, Operation & Service Procedures (48 pages) pool and spa/hot tub heater. Brand: Hayward | Category: Swimming Pool Heater | Size: 2.1 MB. Hayward H400 Pdf User Manuals. View online or download Hayward H400 Installation, Operation & Service Procedures, Installation, Operation And Service Manual.21. 4.8K views 2 years ago. My pool heater would not fire and was showing the LO (low flow) code. This shows where the adjustment knob is on the pressure switch and insight into how to...1.3 Heater Cycling On And Off. 2 Troubleshooting Steps. 2.1 Check Gas Pressure And Fuel Supply. 2.2 Inspect Air Supply And Venting. 2.3 Ensure Proper Water Flow. 2.4 Clean Filters And Pump. 2.5 Adjust External Bypass If Needed. 3 Tips For Diagnosing Problems. 3.1 Follow The Heater Start Sequence.I was given a heater with the used pool I purchased. Previous owner indicated it worked, but leaked. I decided to see what was wrong. As it turns out there ...2 Troubleshooting Steps. 2.1 Check Gas Pressure And Fuel Supply. 2.2 Inspect Air Supply And Venting. 2.3 Ensure Proper Water Flow. 2.4 Clean Filters And Pump. 2.5 Adjust …

1. Obtain the necessary equipment; Qty (2) manometers to read pressure in inches of water column, Qty (2) 1/8”NPT pipe barbed fitting, Qty (1) barbed tee for use with 3/16” silicon hose, silicon or EPDM hose to fit on barb fittings, 3/16” hex wrench, 7/16” open end wrench, and medium flat screw driver. 2.A quick, simple, and to the point video on how to operate your Hayward H-Series Pool Heater both in natural gas or propane format. This covers all models fro...Learn How a Pool Works; Learn How Solar Pool Heaters Work; Learn About Hayward. At Hayward, we're more than just equipment. Learn more. Hayward Insights. Hayward Insights. Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience.April 9, 2023 by William. Hayward pool heater IF code basically signifies the ignition failure of your heater system. The major reasons for Hayward pool heater code IF/ignition failure include lower gas supply, clogged filter, and malfunctioning of the gas and plumber valve. Also, a faulty transformer, defective flame sensor, bad igniter, and ...Libreville is Gabon's largest city and capital. It is a port city of 703,904 that is home to one third of the country's population. Mapcarta, the open map.Cleaning the burners on your Hayward pool heater is essential for keeping it running smoothly. Follow these simple steps to get the job done: Step 1: Turn off the pool heater and disconnect the gas supply. Allow the unit to cool down before proceeding. Step 2: Remove the front panel of the heater to access the burners.>Pool Supply Unlimited has parts for Hayward Universal H-Series Low NOx Induced Draft Pool & Spa Heater | 300,000 BTU | Natural Gas | H300FDN. ... Hayward Heater Display Board H-Series Low NOx Models | IDXL2DB1930. ... ayudarle a diagnosticar los problemas de su equipo y escuchar acerca de cómo podemos mejorar y todo lo que está en su mente ...If your Hayward pool heater is displaying the LO code, it means that the limit string is open and the heater will shut down and enter lockout mode. To fix the problem and close the limit string, you'll need to wait 2 minutes for the automatic restart. A malfunctioning temperature limit switch, water pressure switch, or vent pressure switch ...Jul 5, 2016 ... Wired a Hayward pool heater, propane, trips every few hours ... pool heater tripping ... He says nameplate is 12 amps so did you put a amp meter on ...A LO fault is constantly showing up. It was from great ... Is a Hayward pool heater ENMP6-21A capable of heating a 30,000 litre swimming pool that also has solar heating ... Pump is running, water is flowing through heater, heater plugged in, gas on. Service panel says Lo and "service".Posted July 15, 2009. I have searched for an answer on here to no avail just similar problems. I have a Jandy Aqualink RS i think its an 8, i have a Hayward IDL400 pool heater. my problem was that the heater was coming on and firing when the filter pump turned on, i checked the jandy box witht he sub panel, both the filter pump and the pool ...If the heater is connected to the line side of the circuit it will be powered at all times. In this situation, when the pump shuts down the heater will display a fault code of “LO”. If there is a call for heat and the pump then restarts there will be a 2-minute delay for the heater to fire. After the pump has been running for at

Step 2: Close all valves leading into and out of the heater. This includes both intake and discharge valves. "It is crucial that all valves leading in and out of the heater remain closed during draining to prevent unwanted water flow, ". Step 3: Locate the drainage cap located at the bottom of your pool pump.

Faulty water temperature switch, malfunctioning vent pressure switch, and defective temperature limit switch are accountable for displaying the Hayward pool heater LO code. Also, the damaged flow switch diaphragm and clogged filter are responsible for showing this code on your pool heater. However, going through the article, you will learn all about reasons behind LO 1. First, check that your filter pump is On. Next, ensure the heater is enabled and the set point is higher than the current water temperature. Select the bow to water. Press the heater tile to enter the heater's menu. 2. Ensure the heater is enabled and the set point is higher than the current water temperature. Mar 16, 2018. #1. We have a Hayward H400IDL2 pool heater that ignites and runs normally at start up. After about 10 minutes it begins to repeatedly cycle off and on before finally throwing an IF code. We've had multiple service calls from 2 different pool companies and have replaced the gas valve, flame sensor, igniter and control board.Posted August 22, 2009. I have one of those heaters and could never get it STAY lit more than 1 minute. The fix was to adjust the gas regulator. The gas pressure is important to how the heater works. If your comfortable adjusting the regulator , only turn the screw 1/4 turn till it stays lit.Pomeade IDXL2DB1930 Display Board Replacement for Hayward Heater IDXL2DB1930 Display Board， Compatible with Hayward Universal H-Series Low Nox Induced Draft Heater, H400FDN HD150FDN dummy Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for In-Ground Pools and SpasView and Download Hayward H150FDN troubleshooting manual online. universal h series heaters. H150FDN heater pdf manual download. Also for: H150fdp, H150fdpasme ...Print. Heater-Universial 200 Lp Lo Nx Item #H200FDP. The Universal H-Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional. Standard Cupro Nickel Heat Exchanger. Excellent Salt Water and chemical Corrosion Resistance. Exclusive 'Totally Managed' Cupro Nickel Heat Exchanger Water Flow. Pool heater question. This is a raypak pool heater manifold. Have a water sw open code. Where’s the switch. There two sets of wires running to probes. Ones a thermometer and the other is this little brass plug with two terminals coming off it. I’ve removed it and it’s not a switch. Thoughts ? Heater staying on lo and says service - Answered by a verified Pool and Spa Expert. We use cookies to give you the best possible experience on our website. ... We have a hayward pool heater - 21 foot pool. Pool just opened. Turned on heater - Says needs service - temp window says low. Propane is on.

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We have a commercial inground pool with a 250000 btu Hayward H Series Propane Heater for the spa and we just added a 140k Hayward Heat Pro Heat pump to pool. How can we plumb them together so both poo …Hayward HeatPro Heat & Cool Heat Pump, 100,000 BTU. Hayward W3HP31005T. Write a Review Ask a question. $4,599.00. Starting at $ /mo with Affirm . Prequalify now. Select Size. HeatPro Heat & Cool Heat Pump, 100,000 BTU. In Stock.Hayward salt systems are a popular choice for homeowners looking to maintain their swimming pool water in a clean and safe condition. These systems use salt to generate chlorine, e...Hayward Commercial Pool's Universal H-Series ASME gas heaters are designed and certified for commercial use. The flagship of our H-Series line encompasses high-end features and construction materials as standard. ... * Texas Heater Kits Available * 500,000 BTU provides unprecedented speed to heat, with just 2 models delivering 1 million BTU'S ...A quick, simple, and to the point video on how to operate your Hayward H-Series Pool Heater both in natural gas or propane format. This covers all models fro...The chemical part of opening is done. I put salt in today as pool temp was 72 degrees (heater hasnt been running yet) and i think I'm supposed to turn on the chlorinator but google says to wait 24 hours after putting in salt so I'm going to turn it on tomorrow.To effectively clean the cell, it is recommended to follow these steps: 1. Power off the salt system. 2. Disconnect the cell from the system. 3. Rinse the cell with a high-pressure hose, removing any debris or scale buildup. 4. Inspect the cell for any visible signs of damage, such as cracks or broken plates.Say more by seamlessly including video within your publication. ... HAYWARD ® POOL AND SPA/HOT TUB HEATERS H150FD, H200FD, H250FD, H300FD, H350FD & H400FD MODELS ... LO EE. USE ONLY HAYWARD ...First, Power cycle the Omni Controller by selecting the power button at the bottom left of the screen, followed by pressing the shutdown option. Once the controller display is shutdown, turn power off using the breaker, wait 60 seconds and power back up. Wait 3 minutes and then check to see if the connection has been re-established.Proper maintenance is essential for your pool. It will ensure its efficient and economical operation as well as extend the life of your investment. Hayward equipment helps to reduce the amount of daily maintenance needed to operate your pool, however, it does replace the maintenance required for optimal efficiency. The links below offer pool ...Libreville is Gabon's largest city and capital. It is a port city of 703,904 that is home to one third of the country's population. Mapcarta, the open map. ….

Keeping this in consideration, what does Lo mean on a Hayward heater? The Hayward heater LO code indicates a fault in the temperature limit switch, vent pressure switch, or water pressure switch.To fix it, ensure the pump is on, is wired and connected well, the water flow is above the required minimum pressure, the filters are clean.Are you experiencing a LO code on your Hayward H-Series pool heater? If so, give this video a watch for a few basic tips on how to work through the issue you...Create an Account & Add a Pool 10-12 Find IP Address (mobile) 13-14 Find IP Address (pc) 15-17 Setup and Suspect a Sub Account 18-24 Troubleshooting: Pg. 25-44 1. LAN Function Not Working 26-30 2. Unit Not Communicating 31-35 3. Web/App Account: Login Failure 36-37 4. Endless Refresh OR Failure to Refresh 38-41 5.NEW Hayward Universal H-Series Low NOx heater combines industry-leading hydraulic performance; environmentally responsible low NOx emissions and a standard cupro nickel heat exchanger with a low profile appearance, lighter weight design, independent left or right side electric, water and gas connections plus 2" x 2 1/2" CPVC union connections ...Program Heater Bypass & Temperature Lockout 9-11 8. "SF" or "HS" Code 41 Change/Replace Gas Mixer 12 9. "PF" Code 42 Test/Adjust Gas Pressure 13-15 10. "HF" Code 43 Burner Inspection 16-19 11. "LO: Code 44-47 Change/Replace Combustion Chamber 20-26 12. "IF" Code 48-49 Troubleshooting: Pg. 27-57 13. "AC" Code 50 Diagnostic Codes and Part ...Clean the hayward heater regularly to prevent any debris buildup, which can trigger the if code. Remove leaves, sticks, and other objects from the heater. Check the air filter and clean or replace it as needed. A dirty filter restricts airflow and can cause the heater to overheat, resulting in the if code.According to ANGI, electric pool heaters cost $1,000 to $6,000 to install on average; natural gas or propane pool heaters cost $1,500 to $6,000 to install; heat pump pool heaters cost $2,500 to ...Locate the pilot light assembly on your pool heater. 2. Turn the gas control knob to the “Off” position and wait for 5 minutes. 3. Turn the knob to the “Pilot” position and press it down. 4. While holding down the knob, use a …Aug 8, 2021 · NJ. Aug 7, 2021. #1. Hello, I have a H150FDN pool heater. It's worked all summer so far, but last week I noticed that it would turn on for a few minutes then turn off and show Lo. The filter is clean and the output is strong. I ordered a new pressure switch, but in the meantime I took the two wires that connect to the switch and made a jumper ... Hayward pool heater says lo, We have a hayward pool heater - 21 foot pool. Pool just opened. Turned on heater - Says needs service - temp window says low. Propane is on. I go thru this every year. Contractor's Assistant: Who manufactured the pool? Don't know. Pool is about 5 years old. Tucker pools opens an closes it every year. They just opened it Monday, What to do if the pilot light for your pool heater is not turning on or if the pilot light is not lasting very long or pilot outage. We'll go over on how to ..., While all Hayward H-Series heaters are energy-efficient, the Universal H-Series 400 Low NOx heater has an 83-84 percent industry-leading thermal efficiency. ... Hayward Universal H Series Low NOx 400,000 BTU Natural Gas Swimming Pool Heater Product Code: W3H400FDN Maximum Altitude: 10,000 FT BTU Rating: 400,000 BTUs Heater Type: Natural Gas ..., Hayward Pool Products 620 Division Street, Elizabeth NJ 07207 Phone: (908) 355-7995 www.hayward.com Contents ... heat is available. For Hayward, Jandy, and Compool valve actuators (with wire end connectors), two 3-pin connectors are supplied. Plug the actuator into one of the Aqua Solar's two 3-pin connectors, This review article covers only the Hayward H400FDN. A few Hayward Universal H-Series gas pool heater models. The defining benefit is the Hayward H400FDN is well suited to the pool owner with a large pool. The Hayward H400FDN gas pool heater is highly popular among pool owners, as reviews on websites like Amazon show., Follow the included steps to place the heater in bypass mode for external control. Step 1. Press the 'MENU ICON' button to place the heater in 'STANDBY' mode. Step. The 'SPA' indicator should illuminate & the display should show the Max Temp set point. Step 2. Press and hold the minus & plus buttons for 3 seconds., Hayward 100K BTU HeatPro Heat and Cool Pump. $ 4,299.00. Pay over time with Bread. Hayward 100K Heating & Cooling capability includes active defrost for low ambient operation. Unit will heat and cool water to maintain the desired temperature. Multi-speed fan modulates speed automatically for quiet, energy-efficient operation., ProLogic: How It Works. • All ProLogic systems are salt chlorination ready and can control 4-16 high voltage relays, 3-4 valve actuators and 1-2 heaters. • These systems can manage: Hayward Variable Speed Pumps, ColorLogic Lighting, Sense & Dispense, AquaConnect Homenet, as well as a wide variety of remotes., The best way to drain the H100ID1 above ground pool heater is to disconnect the gas and plumbing lines and tilt the heater so all the water is removed. Please make sure to close off the water supply and turn the gas supply off prior to disconnecting the plumbing. You can also use an air compressor or shop vac to blow the water out of the ..., If the heater is connected to the line side of the circuit it will be powered at all times. In this situation, when the pump shuts down the heater will display a fault code of “LO”. If there is a call for heat and the pump then restarts there will be a 2-minute delay for the heater to fire. After the pump has been running for at , One of the most common calls we receive during season is the FLO error on a pool heater. Learn more about what causes this error and how we resolve it., The Universal H-Series 400,000 BTU Natural Gas Pool & Spa Heater from Hayward provides reliable, long-lasting comfort for pools and spas with a surface area up to 1,200 ft. Built with a durable cupro nickel heat exchanger, it offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry, ensuring you ..., If you're looking for help fixing your Hayward Pool Heaters, look no further! Our comprehensive Hayward Pool Heaters Troubleshooting guide will explain commo..., This product must be installed and serviced by authorized personnel, qualified in pool/spa. heater installation. Improper installation and/or operation can create carbon monoxide gas. and flue gases that can cause serious injury, property damage, or death. U.S. PATENT NOS. 6,026,804 & 6,321,833., This unit is perfect for the environmentally conscious Pool and Spa owner thanks to its Low NOx capabilities. The Hayward Universal H-Series gas heater meets or exceeds the South Coast Air Quality Management District's (SCAQMD) Low NOx emission standards, making it ideal for use in states with strict air quality guidelines such as California., 1. First, check that your filter pump is On. Next, ensure the heater is enabled and the set point is higher than the current water temperature. Select the bow to water. Press the …, This includes the switch on the heater and the main power supply breaker for the heater. Ensure that all valves are in the OPEN position. This includes the gas valve, gas supply valve, plumbing and filter valves. Make sure the pilot light is lit. If it isn't, continue to the following gas pool heater troubleshooting step., Hi all. I have a Hayward pool heater (model #H250FDN). Over the past week, the heater fired up and heated just fine. All display functions seemed to operating normally (temperature read out was good, i was able to cycle the mode from standby, to spa, to pool, and back to standby)., I have a Hayward H400FDN heater. Have a aqua links control in side my house . When I turn on my heater and select pool on my aqua links, it works perfect but when I switch to spa heat it stays on pool … read more, Reset the Heater: Sometimes, simply resetting the heater can clear the LO code. Turn off the heater, wait a few minutes, and then turn it back on. Professional Service: If you’ve tried the above steps and the LO code persists, it’s advisable to contact a professional pool heater technician. They can diagnose the issue more accurately and ..., The Hayward Pool Heater SF Code is a safety feature that prevents the pool heater from over-heating. The code stands for "Safety Fault" and is displayed when the temperature in the heater exceeds 110 degrees Fahrenheit (43°C). It will shut off power to the pool heater until it can cool down to a safe temperature., All HAYWARD Pool Heaters can be shipped to you at home. What are some of the most reviewed products in HAYWARD Pool Heaters? Some of the most reviewed products in HAYWARD Pool Heaters are the HAYWARD Universal H-Series Propane Gas 150,000 BTU Low NOx Pool Heater with 5 reviews, and the HAYWARD Universal H-Series Natural Gas 400,000 BTU Low NOx ... , If you're looking for help fixing your Hayward Pool Heaters, look no further! Our comprehensive Hayward Pool Heaters Troubleshooting guide will explain commo..., May 26, 2011. #1. Hi everyone, I am hoping you can help me out! I have a Hayward H400 IDPL2 heater - when we opened this year I got an IF code so I cleaned out the nozzles and checked the gas levels. After no luck lighting - I replaced the ignitor. After I replaced the ignitor - I then got a CE code. So today I replaced the Display board and ..., 21. NJ. Jul 19, 2023. #1. Hello, I was getting a Lo code on my heater and replaced a few parts and it went right away, it started up and then went right off, a few times and I …, Many choose Hayward pool heaters to keep their pool water comfortable and warm. However, sometimes these heaters can experience issues that require a reset. To reset your Hayward pool heater, you’ll need to turn off the power, wait a few minutes, and then turn it back on again. This simple process can resolve many common […], Here I go over some of the most common problems that affect these Hayward, formerly Summit Heat pump or thermopump pool heaters. Flo (no flow) and LP (low pr..., If the pool heater coil breaks, the pool heater will no longer produce heat. In this case, you must replace the pool heater coil. 2. Replace the Pool Heater Motor. The motor is responsible for turning the pool heater on and off. If the motor is not working properly, the pool heater cannot operate. In this case, the pool heater needs to be ..., HI, I have a Hayward Pool Heater Lo Hox (I think the name) it is about 40,000 BTU natural gas 240 Volt. Blower moter in side. It has ran great for the past 6 or so years. Last fall I was in the pool h … read more, If the Flowsensor persistently detects a No Flow state the system may need to be inspected and maintained by a Hayward Authorized Servicer . The Flowsensor detects water flow from the filter pump in a Body Of Water. It is unsafe to run water treatment features, such as heating, Chlorination, or pH adjustments while there is no water flow., Average Life Expectancy of a Pool Heater. Here's the quick answer - pool heaters can last anywhere from 10 to 25 years or more, depending on the type of pool heater, how regularly it is maintained, and how thorough the maintenance is. Gas. Gas pool heaters can last up to 5 to 10 years., Generally, LO refers to the pressure switch, water pressure. This can be caused by either the diaphram in the flow switch has failed or the filters is clogged and/or pump is unable …, Steps to Maintain Your Hayward Pool Heater. Step 1: Turn off the power supply and gas valve before performing any maintenance. Step 2: Remove any debris from the heater and surrounding area using a soft brush or vacuum. Step 3: Inspect the heat exchanger for any signs of corrosion or buildup.