If code on hayward heater

Jun 25, 2022 · The tech did the install and ran the heater only for a few minutes to check for ignition and stuff. He had done some other plumbing work so he didn't want to run in too long, or the pool pump either, so that the PVC glue really had some time to cure. The heater is a 400,000 BTU Hayward Universal HC Series Model HDF400 Pool Heater.

If code on hayward heater. 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. ... We have a hayward electric heat pump and it is showing a code of E03 and the heater leaks and it is not condensation ...

Turn off the power to the heater. Locate the thermostat adjustment dial, usually found near the control panel. Using a precision screwdriver, make small adjustments to the dial, clockwise to increase and counterclockwise to decrease the temperature setting. Turn on the heater and monitor the temperature for any changes.

If closed, LO code is Swimming Pool Heater Hayward H150FD Owner's Manual. Troubleshooting chart for Hayward Universal H-Series millivolt pool heaters, with SCREW 1 TURNHayward's Universal H-Series 400,000 BTU natural gas pool and spa heaters provide reliable, long-lasting comfort for pools and spas with surface areas up to 1,200 feet. Manufactured with a durable copper-nickel heat exchanger that provides superior protection against corrosion and premature failure due to water chemistry imbalances, ensuring ...View online or download Hayward H250FDP Owner's Manual, Troubleshooting Manual ... Brands; Hayward Manuals; Heater; H250FDP; Hayward H250FDP Manuals. Manuals and User Guides for Hayward H250FDP. We have 6 Hayward H250FDP manuals available for free PDF download: Troubleshooting ... Diagnostic Codes and Part Numbers. 19. Troubleshooting Guide. 20 ...Hayward HeatPro HP5, H/C & HP3100 Pool Heat Pump Parts. Starting from $31.99. Shop Now. Hayward Heater H-Series Parts H250ID1, H300ID1, HD400FD1. Starting from $7.99. Shop Now. Hayward HeatPro HP6003T, HP11003T HP21003T HP21203T HP2100TC03T Pool Heat Pump Parts.The Hayward HeatPro 140K Electric Heat Pump is a high-efficiency heater, gives you the ideal water temperature while using 80% less energy than natural gas heaters. It offers an alternative way to heat your pool that is safe, reliable, and energy efficient. Hayward HeatPro Electric Heater takes the heat from the surrounding air and uses it to ...Hayward H-Series heater for above ground pools and spas combines reliable technology with ease of operation and superior performance. H-Series heaters boast industry-leading hydraulic performance coupled with a 135,000 BTU rating for faster speed-to-heat capability. Their intuitive electronic panel is also quick and easy to operate, so pool ...

Size: 90,000 BTU (W3HP21004T) 90,000 BTU (W3HP21004T) $3,999.00. 140,000 BTU (W3HP21404T) 6 options from $5,499.00. 140,000 BTU (HP21404T) 2 options from $6,999.99. The Hayward HeatPro 95,000 BTU Heat Pump quietly and economically maintains ideal water temperature at all times. Ultra Gold corrosion-resistant evaporator fin offers unparalleled ...Hayward H250FDP pool heater showed SF code. Replaced the thermistor and restarted the power. Display still shows SF code and sevice light on. Cycled the mode button and the blower comes on, but no ign … read moreJan 10, 2024 · Conclusion. In conclusion, troubleshooting the Hayward pool heater code 1F can be done by following a few simple steps. First, check the water flow to ensure there aren’t any blockages or restrictions. Next, inspect the pressure switch for any signs of damage or malfunction. If necessary, clean the heat exchanger to remove any debris or buildup.Pool heaters work very straightforwardly: they generate heat to raise the water temperature. As long as they have a reliable water supply, the heater will not overheat. That’s why your unit will display the LO code when there’s something wrong with the water supply. The LO code signifies that there’s a low water pressure condition. […]View and Download Hayward H250FD owner's manual online. POOL AND SPA/HOT TUB HEATERS. H250FD swimming pool heater pdf manual download. Also for: H200fd, H150fd ...

Hayward 250 pool heater throwing AO code. Replaced control board, blower motor, pressure switch, igniter. Still not turning on. … read more. Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts.Step 1: Shut the power off and then take out all the screws from the display board. After taking off the whole board you’ll see that there is a lower panel on the other side. Take off the two screws and undo them. Step 2: You’ll see a ribbon cable. Take that off and then unscrew the underneath panel.Hayward Heater IF Code. Hello, I would appreciate any guidance that anyone may have to share. We are attempting to start up our Hayward heater for the season, but getting an IF code. Power is on, gas is on, pool water is flowing. I can hear the heater try and run for a few minutes, then a click and a restart.If closed, LO code is Swimming Pool Heater Hayward H150FD Owner's Manual. Troubleshooting chart for Hayward Universal H-Series millivolt pool heaters, with SCREW 1 TURNHeatPro In Ground Heat Pump, 140,000 BTUs, Square Platform. Hayward has an advanced lineup of gas heat and electric heat and heat+chill solutions to deliver the ultimate control of your water temperature.

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Service LED ON: “IF” Code On ICB, verify flame Is heater’s gas sensor & gas valve Inspect gas “IF” Code valve ON? connections are valve in heater secure Turn ON gas …Hayward H250 Quick Manual (4 pages) Universal H-Series POOL AND SPA HEATERS. Brand: Hayward | Category: Swimming Pool Heater | Size: 0.8 MB. Hayward H250 Pdf User Manuals. View online or download Hayward H250 Installation, Operation & Service Procedures, Installation, Operation And Service Manual, Quick Manual.Just to clarify, you're getting an LO code on your Hayward heater, is that correct? Ask Your Own Pool and Spa Question. Customer reply replied 8 days ago. Customer attachment 5/17/2024 2:03:05 PM.Summary of Contents for Hayward H300FD. Page 1 POOL AND SPA/HOT TUB HEATERS H150FD, H200FD, H250FD, H300FD, H350FD, H400FD & H500FD MODELS OWNER'S MANUAL FOR YOUR SAFETY WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, PRINTED 10/24/2011 AT 1:13 PM injury, or death.You need to put the heater in STANDBY Mode to get the bO code on the heater display. Press the mode button once to get the heater in STANDBY Mode. First, press and hold on to the Down key. Then, …Here you’ll gain easy access to information regarding your favorite Hayward products. Whether you are looking for a Quick Reference Guide, troubleshooting steps, or simply wish to view one of our product support videos, you have come to the right place.

The Hayward Heater CE Code error is a common issue that can occur with pool and spa heaters. This error code indicates a problem with the heater and requires …Make sure that the heater is in POOL or SPA mode. Press the MODE button on the user panel keypads to set the heater on STANDBY mode. On STANDBY mode, the heater will not heat the water. Press and hold the MODE and DOWN buttons for at least three seconds. The panel should display BO, which means bypass operation.Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience. Gain insight. Support. ... Phase Heaters: 1.0000: Pool Type: In Ground: Product Dimensions: 24 " x 34 " x 29.5 "Product Height: 24 in: Product Length: 29.5 in: Product Weight: 195 lb: Product Width:Diagnostic Codes Below is a list of all Diagnostic Codes for the HDF Heater. Troubleshooting Steps for each Code are covered on the following pages. Diagnostic Code Description AC Blower Vacuum Switch closed A1 Air switch circuit open before ignitor ; Hayward HDF400 | Universal HC Series Heater Troubleshooting Guide - Page 29Hayward pool heaters are equipped with a self-diagnostic system that detects faults and shuts the unit down. If your pool heater is displaying a code, follow these steps to reset the unit: 1. Turn the power off to the pool heater at the breaker box. 2. Wait five minutes and then turn the power back on. 3.The Hayward Universal H-Series 150,000 BTU Natural Gas Heater delivers premium heating performance for years of reliable, long-lasting comfort A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistryHayward Heater LO code. Thread starter joeg679; Start date Jul 19, 2023; Jump to latest Follow Reply Forums. Equipment - Build, Use, and Repair.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.*The City of Hayward Reach code is a local Green Building Ordinance adopted in early 2020 that prohibits natural gas use in newly constructed homes. This gas ban also applies to detached ADUs that are over 400 square feet. ... Re-roofing, water heaters, basic window replacements (like for like), stucco /siding replacement, minor non-structural ...But, if you find your Hayward is still showing the IF code on display, then read our complete solution guide to Hayward pool heater IF code. You will definitely get the solution. You will definitely get the solution.Jan 10, 2024 · Conclusion. In conclusion, troubleshooting the Hayward pool heater code 1F can be done by following a few simple steps. First, check the water flow to ensure there aren’t any blockages or restrictions. Next, inspect the pressure switch for any signs of damage or malfunction. If necessary, clean the heat exchanger to remove any debris or buildup.

Diagnostic Codes Below is a list of all Diagnostic Codes for the HDF Heater. Troubleshooting Steps for each Code are covered on the following pages. Diagnostic Code Description AC Blower Vacuum Switch closed A1 Air switch circuit open before ignitor ; Hayward HDF400 | Universal HC Series Heater Troubleshooting Guide - Page 29

Hayward Pool Heater IF Code What Does IF Code Mean? The Hayward Pool Heater IF code indicates an ignition failure. This means that the heater was unable to ignite the gas properly, preventing it from operating as intended. IF Code Quick Troubleshooting Steps. Refers to an ignition failure. Check gas supply and ensure valves are open.Medallion Energy 3055 Tech Park Way Deland, FL 32724 407-786-0000. Hours Mon-Fri: 8am – 7pm Saturday: 9am – 5pm Sunday: By AppointmentWe have a older Hayward heater that needs something because we have a older Hayward heater that needs something because our pool is small 16 x 28 and it takes a good 6 hours to heat. Live in Henderson NV do we need a new element or can you recommend someone.For hayward pool heater if code repair, check the pressure switch and ensure proper pressure is being reached. Hayward pool heaters display an “if” code when the pressure switch is not closed. This is caused by insufficient water flow, closed valves, air in the system, or a clogged filter.Learn how to properly start up and troubleshoot your Hayward Universal H-Series natural gas or propane pool heater with this helpful video!Learn more and sho...Change the sand in a Hayward sand filter by washing the old sand through the drain plug using a garden hose and then replacing it with 300 pounds of 20-mesh swimming pool filter sa...Hayward - Heat Exchanger Assembly H250. SKU: 614839. Details: The Hayward Heat Exchanger Assembly is a replacement heat exchanger designed for Hayward H-250 pool and spa heaters. Availability: In Stock. $2,369.99. Add to Cart. #5. Hayward - Rear Wire Harness, DS After 10-28-00. SKU: 614860.Get bd code heater 7 years old opened up pool worked fine then got code ... Our hayward pool heater is showing code. E 03 01. E 03 01. heater is new , was just hooked up and appeared to be working fine at first then a couple days later code appeared. it will start up and run for a few minutes and then code appeared again. ...Hayward H400 Low Nox If Code Hayward H400 Low Nox If Code. By GoodGirl May 13, 2010 in All Swimming Pools Types ... Members; 7 Report; Share; Posted May 13, 2010. Hi everyone, I have a Hayward H400 IDPL2 heater - it is propane and low nox. This is my 3rd season with it. When we started our pool we noticed that the heater will cycle on, try 3 ...

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This video goes over resolving a likely cause to the LO error code that comes up on Hayward H series pool heaters. Here's a link on the part you will likely...Hayward Pool Heater IF Code What Does IF Code Mean? The Hayward Pool Heater IF code indicates an ignition failure. This means that the heater was unable to ignite the gas properly, preventing it from operating as intended. IF Code Quick Troubleshooting Steps. Refers to an ignition failure. Check gas supply and ensure valves are open.Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience. Gain insight. Support. ... Rear Clearance - Heaters: 6 in: Refrigerant: Yes: Series Heaters: HeatPro: Shipping Dimensions: 43 " x 33.8 " x 33.5 "Shipping Height: 43 in: Shipping Length: 33.5 in: …Universal H-Series Natural Gas 400,000 BTU Low NOx. Hayward. SKU: W3H400FDN. The Universal H-Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional. Add to Compare. Add to Export.Heater will not power up Pages 14-22 Open FC1 and/or FC2 Fuse Pages 23-24 Open FC3 and/or F1 Fuse Pages 25-28 Open FC4 Fuse Pages 29-31 Diagnostic Codes Page 32 BD Code Pages 33-34 EE and CE Codes Page 35 IO and SB Codes Page 36 SF and HS Codes Page ... Hayward Part # FDXLFSKF30 (Qty. 10) Step 1:May 12, 2023. #1. Hey guys long time reader, but just getting frustrated trying to find the right steps/diagnostics for my issue. I have an 11year old Hayward (H400FDN) heater, 2 years ago I replaced all the boards. The heater has worked like a champ since. This past week we were using the heater quit and started throwing the IF code.Our network of certified personnel can help you build your pool, recommend a product, repair a faulty product, and test your water. Find a professional near you. Hayward offers environmentally responsible, cutting-edge pool and spa equipment for residential and commercial, in-ground and above-ground pools.First, reset your heater thermostat. Now, set the temperature point below 104 degrees. Then, set the function “Ok”. Always keep the temperature under 104 degrees to allow the heater to heat the water at this temperature. Note: Learn how to fix CE code on Hayward pool heater. 4. ….

For example, if the date code is 0919, it means the heater was manufactured in September of 2019. Where to Find the Serial Number. The serial number can be found on the heater's rating plate, which is usually located on the inner front panel or on the side of the heater. ... If your Hayward pool heater isn't working as it should, don't ...Diagnostic Codes and Part Numbers 19-20 1. Heater not powering up 21-26 2. Open FC1&/FC2 Fuse 27-28 3. Open FC3&/F1 Fuse 29-31 4. Open FC4 Fuse 32-33 5. "D" ode 34-35 ... Hayward Part # FDXLFSK19F30 (Qty. 10) G . The control continually compares the set temp to the actual water temp. WhenThe low NOx emission makes it a perfect choice for the environmentally concerned pool owner. Enjoy a warmer pool this season without your fuel costs skyrocketing. Hayward's Universal H-Series heaters represent innovative heating technology for pools and spas. Its hydraulic performance also saves energy by reducing the circulation time of the pump.USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Hayward Industries 1415 Vantage Park Dr., Suite 400 ... • control up to 4 (expandable to 8) heaters or low voltage equipment including gas heaters, electric heat pumps, and chillers as well as various low voltage ... distance from the pool/spa (or more, if local codes require). The OmniLogic is ...USE ONLY HAYWARD GENUINE REPLACEMENT PARTS 51300102101 RevB Hayward Industries 1415 Vantage Park Dr., Suite 400 Charlotte, NC 28203 Phone: (908) 355-7995 www.hayward.com ... Conformance With Codes: The heater shall be installed in accordance with all local and state codes and with thePool heater repairSo the H250 with an input of 250,000 BTU’s actually puts 210,000 BTU’s into the water per hour. Discounting heat loss (which there is always some) if you are using a Hayward gas heaters to heat the 18,000 gallon pool we have discussed above you will need: 22.58 therms of natural gas. 24.75 gallons of propane.Unlock the power of efficient pool heating with Hayward's knowledge base on heaters. Explore our range of high-performance pool heaters, from gas to electric options, designed to provide optimal comfort for your swimming experience.CAUTION - This heater must be connected to a bonding grid with a solid copper conductor wire gauge 8 AWG or larger. All Hayward heaters are designed for copper conductors only. The National Electrical Code (NEC), and most other codes require that all metallic components of a pool structure, including reinforcing steel, metal fi...Ensure the proper installation of the main circuit board within the heater. Check the short ground and high voltage issue and take steps to prevent it. 5. Circuit Board's Faulty Fuse. Another factor responsible for displaying the Hayward pool heater ce code is the faulty or blown fuse in the heater's circuit board. If code on hayward heater, The ps code on a hayward pool heater is a unique identifier that helps identify specific models and their features. It is a combination of letters and numbers that denotes the specific characteristics of the heater. By referencing the ps code, owners and technicians can quickly identify the model, its capacity, fuel type, and other important ..., Dec 2, 2021 · How to fix it: Check that pool pump is receiving enough water. Ensure that your pool pump is sending water to the heat pump. For variable speed pool pumps, try putting the pump speed up a notch Check for any clogs or backups causing poor water circulation. The same is true if what you use is in your pool is the Raypak pool heater., Enjoy a warmer pool this season without your fuel costs skyrocketing. Hayward's Universal H-Series heaters represent innovative heating technology for pools and spas. Its hydraulic performance also saves energy by reducing the circulation time of the pump. It can raise the temperature of an 800 gallon pool 30 degrees in less than an hour you'll ..., View and Download Hayward H250IDL2 installation, operation & service instructions online. Pool and Spa/Hot Tub Heaters. H250IDL2 swimming pool heater pdf manual download. Also for: H350idl2, H400idl2., So the H250 with an input of 250,000 BTU's actually puts 210,000 BTU's into the water per hour. Discounting heat loss (which there is always some) if you are using a Hayward gas heaters to heat the 18,000 gallon pool we have discussed above you will need: 22.58 therms of natural gas. 24.75 gallons of propane., Manuals and User Guides for Hayward HeatPro HP21104T. We have 3 Hayward HeatPro HP21104T manuals available for free PDF download: Troubleshooting Manual, Parts Manual, Installation Manual., Phase Heaters: 1.0000: Platform: Square: Pool Type: In Ground: Product Dimensions: 44 " x 30.25 " x 34 "Product Height: 44 in: Product Length: 34 in: Product Weight: 280 lb: ... HP31005T Hayward HeatPro Heat Pump Manual (51300056501RevG) (opens in new tab) Export 0 Assets. Export type selection. Export 0 Assets. Clear Selection ..., Hayward Heat Pump HeatPro - http://bit.ly/2RMr0E7Inyo also recommends Raypak Heat Pump Series - http://bit.ly/2NXa10LIn this video, we show pool owners how ..., IF NOT, open gas supply. Flame sensor & gas valve Step 12C Verify that the gas valve, inside the heater, is ; Hayward H250FDP | Universal H Series Troubleshooting Guide - Page 55 12. Service LED ON: "IF" Code (cont.) Voltage/pressure off gas valve Step 12E Verify correct flame sensor Step 12F Verify 22-28VAC off gas valve during ignition trial., Heat Pump Hayward Universal H-Series Low NOx Manuel D'entretien Et D'installation Service/installation: h150fdn h200fdn h250fdn h300fdn h350fdn h400fdn français (64 pages) Heat Pump Hayward HP50B Installation & User Manual, Universal HC Series - Dual Fuel 400k BTU. Hayward. SKU: HDF400. The industry’s smallest footprint heater allows replacement of almost any heater in an existing pad with the efficient reliability of the new Universal HC Series dual-fuel technology heater from Hayward®. Add to Compare. Add to Export. Overview., Hayward pool heaters are equipped with a self-diagnostic system that detects faults and shuts the unit down. If your pool heater is displaying a code, follow these steps to reset the unit: 1. Turn the power off to the pool heater at the breaker box. 2. Wait five minutes and then turn the power back on. 3., #1. I am getting an LP Error on my electric Hayward heater, which signifies low water pressure. I have turned the valve that normally bypasses the heater to go …, IF NOT, open gas supply. Flame sensor & gas valve Step 12C Verify that the gas valve, inside the heater, is ; Hayward H250FDP | Universal H Series Troubleshooting Guide - Page 55 12. Service LED ON: "IF" Code (cont.) Voltage/pressure off gas valve Step 12E Verify correct flame sensor Step 12F Verify 22-28VAC off gas valve during ignition trial., Aug 11, 2022 ... Comments53 · Jandy LRZ Pool Heater Not Working - Ignition Failure - Gas Valve Not Opening - Part on the Truck · Hayward H-Series 350k BTU Pool ...., The IF code appears on the heater display when the ignition sequence fails to complete. The heater attempts to light the burner three times before displaying the IF code and shutting down. The code …, UNIVERSAL HC-SERIES GAS POOL HEATERS. Industry’s smallest footprint heater (588 sq in) *. Dual-fuel technology from a single input source. 400,000 BTU heating capacity. Fits directly against walls, fences, or other equipment. Competitive heaters require 6–12" wall clearance., However, the Hayward heater is now giving an LO code, and the service light is on. I'm trying to figure out if this is something I can troubleshoot/fix myself, or if I need a pool or gas technician. Pump seems to be running fine. Psi on the sand filter looks to be around 5. Is this low, and does that maybe indicate it's a filter issue?, Hayward products including, quick reference guides, troubleshooting steps, and product support videos. ... Heater required kW : Heater required BTU/hr : Water weight kg : Water weight Lbs : ... Scan the QR code to send us a quick information request. Include your phone/messaging contact number and country in your message., Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com USE ONLY HAYWARD GENUINE REPLACEMENT PARTS 51 INTERNAL WIRING: If the heater display is blank after the electrical has been installed see …, Set both the pool and spa desired temperature on the heat pump before turning on the remote. Once the remote is calling for pool or spa you will not be able to change the function on the heat pump without turning the remote off. Use Terminals 1 and 2 for 2 wire remote connection. Use Terminals 3,4,& 5., POOL PARTIES AREN'T JUST FOR SUMMER. Universal H-Series Heater (H400FD) Intuitive control pad with protective cover is always easy to read and operate Universal junction boxes on left and right sides make electrical and automation, LP Error is usually LOW PRESSURE - low refrigerant charge, but on a HEAT PUMP if the condenser fan isn't working, you will also enable the low pressure senso..., Note: 104°maximum temperature. Step 1: Step 2: Step 3: Press the Mode button to place the heater in Standby Mode. Hold the Down Arrow and Mode buttons simultaneously for 3 seconds for Bypass operation. "bo" will be displayed on the screen. Page 7. Gas Pressure Testing., Page 4 of 7 Hayward City Hall 777 B Street Hayward CA, 94541-5007 Phone: 510-583-4140 Website: www.hayward-ca.gov Permit Center Hours: Please see website for operating hours c. A homeowner, unless they are also a qualified draftsperson or designer, can prepare plans for the following project types: like-for-like kitchen and bathroom, The tech did the install and ran the heater only for a few minutes to check for ignition and stuff. He had done some other plumbing work so he didn't want to run in too long, or the pool pump either, so that the PVC glue really had some time to cure. The heater is a 400,000 BTU Hayward Universal HC Series Model HDF400 Pool Heater., Step 1 Step 2 Verify the heater’s power LED is illuminated, and put the heater is Using the up and down arrows adjust the heater to the desired the desired mode. Page 13 How To: Set Clock Follow these steps to adjust the Clock Settings. Note: blocked off areas of the display represent flashing numbers., This integrated control board is designed to use with Hayward Universal H-Series Low NOx induced draft heater models H250IDL2, H350IDL2, H400IDL2 and also compatible with Hayward Universal H-Series Low NOx induced draft heater. New part incorporated on all IDL Heaters built after 9/20/04. Weighs 18-1/2-pound., Service LED ON: “IF” Code Inspect main gas supply Verify gas valve is ON Step 12B Step 12A IF “Ignition Failure”, Ensure main gas supply is in Verify that the gas valve, inside the heater, is in the the ON position., View online or download Hayward H350FDP Owner's Manual, Troubleshooting Manual ... Brands; Hayward Manuals; Heater; H350FDP; Hayward H350FDP Manuals. Manuals and User Guides for Hayward H350FDP. We have 5 Hayward H350FDP manuals available for free PDF download: Troubleshooting ... Diagnostic Codes and Part Numbers. 19. Troubleshooting Guide. 20 ..., May 26, 2022 · The control board oversees the operation of your heater, including monitoring temperature and safety features. In short, the Hayward Heater bD Code means there is a problem with the control board located on the right side of the heater. This can be caused by an open FC4 Fuse, faulty wiring, or a secondary high voltage fault., Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience. Gain insight. Support. ... Phase Heaters: 1.0000: Pool Type: In Ground: Product Dimensions: 24 " x 34 " x 29.5 "Product Height: 24 in: Product Length: 29.5 in: Product Weight: 195 lb: Product Width:, Preventing Future LO Codes. To avoid encountering the Hayward Heater LO Code in the future, consider implementing these preventive measures: Regular Maintenance: Stay on top of regular maintenance tasks, such as cleaning or replacing your pool filter and inspecting your plumbing system for blockages.