Hayward pool heater lo - PitschPlumbing. 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 to make enough pressure to make the switch. Open the front panel of the heater and look up in to the right. You will see a round part with 2 wires ...

 
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.. Bates fish market gardena ca

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.Model W3H150FDP. Cupro-Nickel heat exchanger with patented "V" baffle design increases the life of your unit and reduces heating time. Patented Polymer Header design provides superior hydraulic performance which saves energy and protects against damage due to high flow conditions. 2" x 2 1/2" CPVC unions.Pool Covers. In addition to heating your pool or spa, you can enhance the warming effect by adding a cover to maintain a comfortable water temperature. Using a swimming pool cover when the pool is not in use can reduce your heating costs by as much as 50-70%. Read Pool Covers Save Water and Energy to learn about additional …The heater core in the Chevy Astro van acts like a small radiator that the engine coolant passes through. If the van's heater has trouble working, you may need to replace the core.... Dive in with a dealer near you. 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. 4. 5. Explore Hayward's pool parts and accessories for maintenance and upgrades. Find high-quality replacements, equipment, and supplies to enhance your pool experience.* Texas Heater Kits Available * 500,000 BTU provides unprecedented speed to heat, with just 2 models delivering 1 million BTU’S while using minimal pump room space Specifications NOTE: the maximum temperature set point is 104° F. 13. Hayward H400FDN | Universal H Series Troubleshooting Guide - Page 14. in bypass mode for external control. Step 1 Step 2 Press the 'MENU ICON' button to place the heater in 'STANDBY' mode. Step 3 Press and hold the minus & plus buttons for 3 seconds. Model W3H150FDP. Cupro-Nickel heat exchanger with patented "V" baffle design increases the life of your unit and reduces heating time. Patented Polymer Header design provides superior hydraulic performance which saves energy and protects against damage due to high flow conditions. 2" x 2 1/2" CPVC unions. INNOVATION MADE EASY. Hayward Commercial Aquatics offers a full range of industry-leading innovative products designed to work together as one total system to help every commercial pool perform at its absolute best. Our products set the technological standard while providing unmatched performance, efficiency, reliability, versatility and ease ...TOP VENT PRO-INVERTER 13.5kW. SKU: PASRW030PUBP. Add to Compare. Showing 1-12 of 22. 1. 2. Heating swimming pools is a wise investment as it increases its value and extends the swimming season. So to graduate to a higher degree of comfort and control, choose a Hayward pool heater.The Lo on a Hayward heater means “low.” When the Lo setting is selected, the heater runs at a lower speed, which can help conserve energy. In some cases, the Lo setting may indicate a malfunction or another issue with the heater. If you notice your Hayward heater displaying an LO code, it is important to check the manual or contact …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.A 30% fill on propane can cause issues with a pool heater, but not the one you are having. Heater manufacturers recommend nothing lower than 50%. At 30% you can get a very ugly flame at the burners. From Hayward: "The Hayward heater LO code indicates a fault in the temperature limit switch, vent pressure switch, or water pressure …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.Shop for a Hayward W3H400FDP Universal H-Series H400 Low NOx Pool Heater, 400,000 BTU, Propane Gas at The Pool Supplies Superstore. FREE Shipping & Unbeatable Low Prices.Hayward Heater LO code. Thread starter joeg679; Start date Jul 19, 2023; Jump to latest Follow Reply Forums. Equipment - Build, Use, and Repair. ... Most of the time, an AG pool will have higher than normal pressure at the heater since it …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...* Texas Heater Kits Available * 500,000 BTU provides unprecedented speed to heat, with just 2 models delivering 1 million BTU’S while using minimal pump room space SpecificationsPool 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 ...Hayward - Inground Pool Heater - Universal H-Series - Lo-Nox. Categories. Above Ground Pool Packages; Above Ground Pool Liners . Above Ground Pool Liner Accessories ; ... Lo-Nox - Inground Pool Heater Hayward. MSRP: $3,498.99 Your Price: $2,599.99 (You save $899.00 ) SKU: UPC: * Current Stock: Quantity: Decrease ...We have 3 Hayward H300FDP manuals available for free PDF download: Troubleshooting Manual, Service & Installation Manual, Owner's Manual Hayward H300FDP Service & Installation Manual (64 pages) POOL AND SPA/HOT TUB HEATERSClean 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.Here you’ll gain easy access to information regarding your favorite Hayward products. Whether you are looking for a Quick Reference Guide, ... Learn about maintenance, innovation, pool safety & other insights from Hayward. Explore. Tools. Utilize tools and downloads of mobile apps ... Universal H Series and ASME Gas Heater Installation, ...Fits hayward universal h-series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp; Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, …LO on a Hayward Heater#VSP#2speedpump#backwashfilter#cleanfilter#aqualogicThe Hayward H-Series' Finn Plate cupro-nickel heat exchanger has special V-groove design for faster heating and longer life. Hayward Universal H-Series, Low NOx, 250,000 BTU, Propane Gas, Pool and Spa Heater delivers energy efficient heating to your pool's water that you can trust. Hayward Universal H-Series - Versatility & PowerIf it’s primed and pumping and you have LO clean your filter cartridge. If that doesn’t work run the system with the cartridge removed and see if it it fires. If it does buy a new cartridge. If it still doesn’t work call Hayward cuz you could have a bad a pressure/flow sensor. 2.Offers heating that is energy efficient and environment friendly. Please review the For Your Swimming Pool brochure. Patented bypass design ensures better hydraulic performance. View More Details. BTU Rating: 399900. 199900. 200000. 399900. Pickup at South Loop.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.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 ...We have 3 Hayward H300FDP manuals available for free PDF download: Troubleshooting Manual, Service & Installation Manual, Owner's Manual Hayward H300FDP Service & Installation Manual (64 pages) POOL AND SPA/HOT TUB HEATERSA 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...1. Locate the control panel. 2. Press the ‘Power’ button. 3. Set your desired temperature with the ‘Up’ and ‘Down’ buttons. 4. Press ‘Mode’ to activate the heating function. Pool Basics: How To Start/Light a Hayward H-Series Pool Heater.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 ...LO on a Hayward Heater#VSP#2speedpump#backwashfilter#cleanfilter#aqualogicDive in with a dealer near you. 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.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 …Enter a postal code to find the nearest Hayward authorized pool professional. Postal Code: How far from the above postal code do you want to search? Enter the miles in the box …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 SpasThe Hayward Universal H-Series gas heater is one of the most energy-efficient Pool and Spa heating solutions on the market! Its ground-breaking hydraulic design reduces pump circulation run time, giving you an energy savings of up to 18%! This unit is perfect for the environmentally conscious Pool and Spa owner thanks to its Low NOx ...Find a professional near you. Find a dealer. Hayward offers environmentally responsible, cutting-edge pool and spa equipment for residential and commercial, in-ground and …Service LED ON: “LO” Code “LO” Code (Limit Open) may relate to water flow. Verify the pump is running & adequate water is flowing through heater. “LO” is NORMAL when the …Apr 3, 2023 · 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 […] 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 ...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.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 …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.•Only qualified technicians should service heater •Replace damaged wiring immediately •Ensure appliance is properly ... "LO: Code 44-47 Change/Replace Combustion Chamber 20-26 12. "IF" Code 48-49 ... The default Max temp set points are 90ºF (Pool) 104ºF (Spa). When setting the max temp lock-out set point, the LEDs & display should ...HeatPro Variable-Speed Heat-Cool Pump 120k BTU. Heating swimming pools is a wise investment as it increases its value and extends the swimming season. So to graduate to a higher degree of comfort and control, choose a Hayward heating solution.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...View and Download Hayward HC Series troubleshooting manual ... The default Max temp set points are 90ºF (Pool) 104ºF (Spa). When setting the max temp lock-out set point, the LEDs & display ... may relate to water flow. Verify the pump is running & adequate water is flowing through heater. “LO” is NORMAL when the pump is turned off or ...The Hayward H-Series' Finn Plate cupro-nickel heat exchanger has special V-groove design for faster heating and longer life. Hayward Universal H-Series, Low NOx, 250,000 BTU, Propane Gas, Pool and Spa Heater delivers energy efficient heating to your pool's water that you can trust. Hayward Universal H-Series - Versatility & PowerIf 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.Offers heating that is energy efficient and environment friendly. Please review the For Your Swimming Pool brochure. Patented bypass design ensures better hydraulic performance. View More Details. BTU Rating: 399900. 199900. 200000. 399900. Pickup at South Loop.LO Code Pages 40-43 IF Code Pages 44-46 AC Code Page 47 AO Code ... Heater must then be in Spa or Pool Mode for operation. The heater will ... Hayward Part # FDXLFSKF30 (Qty. 10) Step 1: Page 14 Verify incoming voltage to heater is present (110-125 or 220-245 VAC), ifStumbling 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.4.2 464 ratings. Amazon's Choice in Swimming Pool Heaters by Hayward. 50+ bought in past month. $3,17900. Delivery & Support. Select to learn more. Ships from. In The Swim …Aug 3, 2014 ... Audio turned out weird, so you may have to turn the volume up! How to diagnose and repair your Hayward H Series (H250) Gas pool heater.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.I have Hayward H150FDN Universal H-Series, Low NOx, 150,000 BTU, Natural Gas, Pool and Spa Heater and I am getting a LO code with is a flow problem. I have my intermatic timer set for 755am to turn on and give my equipment power, then at 8am the Hayward pump turn on.Model W3H150FDP. Cupro-Nickel heat exchanger with patented "V" baffle design increases the life of your unit and reduces heating time. Patented Polymer Header design provides superior hydraulic performance which saves energy and protects against damage due to high flow conditions. 2" x 2 1/2" CPVC unions.The Universal H-Series Heater is the world-class heater with an Earth-friendly conscience. While all Hayward H-Series heaters are energy-efficient, the Universal H-Series Low NOx heater has an 83-84 percent industry-leading thermal efficiency and complies with all current California and Texas air quality emission standards.A 30% fill on propane can cause issues with a pool heater, but not the one you are having. Heater manufacturers recommend nothing lower than 50%. At 30% you can get a very ugly flame at the burners. From Hayward: "The Hayward heater LO code indicates a fault in the temperature limit switch, vent pressure switch, or water pressure …Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience. Gain insight. ... Phase Heaters: 1.0000: Platform: Square: Pool Type: In Ground: Product Dimensions: 37 " x 30.5 " x 33.6 "Product Height: 37 in: Product Length: 33.6 in: Product Weight: 230 lb:Show pool professionals that sell/service these specific products (restricts search to include only companies that sell/service each item checked):The Hayward H-Series' Finn Plate cupro-nickel heat exchanger has special V-groove design for faster heating and longer life. Hayward Universal H-Series, Low NOx, 250,000 BTU, Propane Gas, Pool and Spa Heater delivers energy efficient heating to your pool's water that you can trust. Hayward Universal H-Series - Versatility & PowerTurn the thermostat all the way up on the heat pump. These units are not compatible with 3 wire remotes. For 2 wire air switch installations remove the jumper between terminals 1 & 2 and replace it with the 2 wires from your switch. Set the thermostat on the heat pump to the desired temp. Wiring Diagram HPABG / HP380.Dive in with a dealer near you. 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.A 30% fill on propane can cause issues with a pool heater, but not the one you are having. Heater manufacturers recommend nothing lower than 50%. At 30% you can get a very ugly flame at the burners. From Hayward: "The Hayward heater LO code indicates a fault in the temperature limit switch, vent pressure switch, or water pressure …Main Takeaways. When troubleshooting a pool heater, check the power, temperature settings, filter, pool pump, and plumbing valves. Some common issues with gas pool heaters are with the pilot light, leaks, dark exhaust, and rust. I recommend contacting a professional to help with complex fixes such as electrical, plumbing, or …Jun 7, 2020 ... Diagnosis of common problems on a Hayward pool heater.Hayward Heat Pro W3HP21104TC 110,000 BTU Lo Ambient pool heater pump has continuous temperature display, self-diagnostic codes, UV-resistant cabinet. Call Us Nationwide: ... Hayward W3HP21104TC Lo Ambient Pool Heat Pump, 110,000 BTU. Write a review [Call For Availability] Free Shipping. CODE: HeatPro W3HP21104TC, Lo …INNOVATION MADE EASY. Hayward Commercial Aquatics offers a full range of industry-leading innovative products designed to work together as one total system to help every commercial pool perform at its absolute best. Our products set the technological standard while providing unmatched performance, efficiency, reliability, versatility and ease ...Remove front & rear panels Remove wires from limit switches. Step 13. Remove the 4 screws from the bottom of the front and rear panels and pull up and out to remove each one. Step 14. Use needle nose pliers to remove the 2 red wires from each of the high limit switches. Remove wires from water pressure switch.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.Program Heater Bypass & Temperature Lockout 13-15 Test/Adjust Gas Pressure 16-17 ... “LO” ode 46-51 12. “IF” ode 52-55 13. “A” ode 56-57 14. ... The default Max temp lock-out set points are 90ºF (Pool) 104ºF (Spa). Press the MENU I ON button to place the heater in STANDY mode.Universal H-Series Propane Gas 300,000 BTU Low NOx (Expert Line) Item #H300FDP. EXPERT LINE products are only available through your local pool professional. The Universal H-Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional. Standard cupro nickel heat exchanger.Reach out via phone at (908) 355-7995 or email for unparalleled customer service and technical support to keep your pool in optimal condition. ... Hayward Insights provides expert advice, ... Pump, Filter, Heater, Lights, & Whole Goods Tech Support. 1 (908) 355-7995 (U.S.) Contact us by letter: Hayward Holdings, Inc. PitschPlumbing. 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 to make enough pressure to make the switch. Open the front panel of the heater and look up in to the right. You will see a round part with 2 wires ... 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. Replace defective switches.Having a clean and balanced pool is the ultimate goal for every pool owner. One of the most popular and efficient ways to achieve this is by using a Hayward salt system. However, l...Service LED ON: “LO” Code “LO” Code (Limit Open) may relate to water flow. Verify the pump is running & adequate water is flowing through heater. “LO” is NORMAL when the pump is turned off or there is insufficient water flow. Test pressure switch voltage Test pressure switch voltage (cont.) Step 11C... Page 46 11. Service LED ON ...I have Hayward H150FDN Universal H-Series, Low NOx, 150,000 BTU, Natural Gas, Pool and Spa Heater and I am getting a LO code with is a flow problem. I have my intermatic timer set for 755am to turn on and give my equipment power, then at 8am the Hayward pump turn on.TOP VENT PRO-INVERTER 13.5kW. SKU: PASRW030PUBP. Add to Compare. Showing 1-12 of 22. 1. 2. Heating swimming pools is a wise investment as it increases its value and extends the swimming season. So to graduate to a higher degree of comfort and control, choose a Hayward pool heater.

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. . Urm thrift and boutique

hayward pool heater lo

Jun 7, 2020 ... Diagnosis of common problems on a Hayward pool heater. PitschPlumbing. 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 to make enough pressure to make the switch. Open the front panel of the heater and look up in to the right. You will see a round part with 2 wires ... 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.Aug 21, 2023 · Inspect Wiring Connections. Check all wiring connections in your pool heater for looseness or corrosion. Tighten any loose connections and clean any corrosion or oxidation present. Faulty connections can disrupt the electrical flow and cause ignition failure, so ensuring all connections are secure is crucial. Heater must then be in Spa or Pool Mode for operation. The heater will fire when instructed by the external control. Control Configuration- Two wire 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 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.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... HU-429948972. 3 years ago. Hi I just hooked up a new 150,000 Hayward. With pump on low speed I get the LO code. So I put on high speed and LO code immediately goes away but then within 30 seconds I get HS code and shut down. 724-977-7371. Like. The Hayward pool heater spa mode is designed to maintain a specific “spa-like” temperature in the pool. To use this mode, enable “Spa mode” from the control panel, set the required temperature, and let the pool heater warm the water. Once ready, test the water. This process is a joy to behold for those who want to soak themselves in ...Hayward - Inground Pool Heater - Universal H-Series - Lo-Nox. Categories. Above Ground Pool Packages; Above Ground Pool Liners . Above Ground Pool Liner Accessories ; ... Lo-Nox - Inground Pool …Medallion Energy 3055 Tech Park Way Deland, FL 32724 407-786-0000. Hours Mon-Fri: 8am – 7pm Saturday: 9am – 5pm Sunday: By AppointmentHayward - Front Header Assembly. SKU: 614836. Details: FRONT HEADER ASS'Y. Availability: In Stock. $569.99. Add to Cart. Keep your pool equipment running strong with Hayward H-Series H250IDL2 - H400IDL2 Low NOx Pool Heater Parts.Aug 3, 2014 ... Audio turned out weird, so you may have to turn the volume up! How to diagnose and repair your Hayward H Series (H250) Gas pool heater. HU-429948972. 3 years ago. Hi I just hooked up a new 150,000 Hayward. With pump on low speed I get the LO code. So I put on high speed and LO code immediately goes away but then within 30 seconds I get HS code and shut down. 724-977-7371. Like. Key Takeaways. The P5 code on Hayward pool heaters indicates a problem with the pressure switch. Common causes of the P5 code include clogged filters, improper water flow, and electrical issues. Troubleshooting steps for the P5 code involve checking water pressure, inspecting the heat exchanger, and verifying the gas supply..

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