Hayward heater if code

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.

Hayward heater if code. Description: This recall involves the Hayward UHXNEGVT15001 Negative Pressure 6-inch Vent Kit for pool heaters. The vent kit is used exclusively on the Hayward H500FD Gas Heaters. The kit includes the following: one vent pipe adapter for negative pressure galvanized vent pipe, one flue cover plate with hole for vent, #10 sheet metal screws ...

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.

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 […]I describe the main causes and how to resolve the AO error if you receive one on a Hayward Heater.Oct 21, 2020 ... I describe the main causes and how to resolve the AO error if you receive one on a Hayward Heater.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. Hayward HDF400 | Universal HC Series Heater Troubleshooting Guide - Page 11. setting the max temp lock-out set point, the LEDs & display should flash rapidly.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.Dec 30, 2022 ... Hayward Pool Heater LO Code? Watch This ... Hayward H400 Pool Heater IF Error Code ignition Failure (IDXLFLS1930) Flame Sensor Replacement.Aug 8, 2016 ... Comments17 · Falla LO de calentador de piscina HAYWARD serie FDP · Hayward H400FD pool heater fixed igniter issue no thanks to Hayward support.View online or download Hayward H400FDN Owner's Manual, Troubleshooting Manual ... Brands; Hayward Manuals; Heater; H400FDN; Hayward H400FDN Manuals. Manuals and User Guides for Hayward H400FDN. We have 4 Hayward H400FDN manuals available for free PDF download: Troubleshooting ... Diagnostic Codes and Part Numbers. 19. …

The Hayward Heat Pro HP21124T pool heat pump has 110,000 BTUs, making it suitable for midsize pools. Ranks high as an energy-efficient and durable unit. Compatible with Hayward Intermatic, Compool, AquaLink, Goldline, and AquaSwitch control systems. The temperature display is continuous and easy to use allowing you to change your temperature by ...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.Fixing the Hayward Heater AO Code: Now that we've identified the common causes, let's explore the fixes to resolve the AO code issue: Inspect and Clean the Air Intake: Start by turning off the heater and inspecting the air intake. Remove any debris or obstructions that may be blocking the airflow. Ensure the intake is clean and clear.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.The IF code on your Hayward pool heater points to an ignition problem, usually occurring when the heater fails to ignite or the ignition process is interrupted. Advertisment. Read more The Ultimate Guide to Stronger Floors. However, This could result from gas supply issues, ignition control module problems, or defective igniters. Timely ...Hayward pool heater if code. If your Hayward pool heater displays an IF or 1F code, it indicates an issue of "Ignition Failure" in your pool heater. Different problematic components trigger the code to appear on display. Well, showing code helps you to determine a specific issue and helps you to take steps to the relevant issue immediately.

Available in 150,000, 200,000, 250, 000, and 400,000 BTUs, the Universal H-Series heater can raise the temperature of an 800-gallon pool 30 degrees in less than an hour—you'll feel the benefits the moment you step into the water. The Hayward Universal H-Series Low NOx can be added to inground pool kits sold by Pool Warehouse!HeatPro Round Heat-Cool Pump 100k BTU. Hayward. SKU: HP31005T. High performance, energy-efficient HeatPro heat pumps quietly and economically maintain the ideal water temperature at all times. Add to Compare. Add to Export. Overview. Specifications.Oct 21, 2020 ... I describe the main causes and how to resolve the AO error if you receive one on a Hayward Heater.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.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. ... i have an almost new hayward summit heat pump pool heater, shows steadt f-5 code for defrost mode, ...

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The electric heaters fit into compact spaces — even under spa skirts or steps. Like all Hayward heaters, they are easy to install and service. • 304 stainless steel tank, • 304 stainless steel threaded head, safety sensor electric heating element, • Service-ease design gives simple access to internal controls, • Heater on indicator light,With variable speed pumps, ensure you have the RPM of the filter pump set at 2200 RPM. Check and clean the heaters' heat exchanger. Remove and inspect the High limit sensors, and there are two located in the header of the heater. If there are any signs of corrosion or calcium buildup, replace them.Universal H Series Heaters® Troubleshooting: Hayward H400FDN | Universal H Series Troubleshooting Guide - Page 19 Diagnostic Codes Below is a list of all Diagnostic Codes for the UHS Heater. Troubleshooting Steps for each Code are covered on the following pages. Diagnostic Code AC AO BD CE EE HF HS IF IO LO PF SB SFHeater 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 37 ... Hayward Part # FDXLFSKF30 (Qty. 10) Step 1:My pool heater stopped working and the display showed IO which means the igniter is bad. It was replaced and still showed that code. Troubleshooting came to...

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 ManualClean the Filter. Your pool heater needs enough water pressure to run properly, usually at least 40 GPM (gallons per minute). If your heater is not getting a steady stream of water, it could be due to a clogged filter or dirty pump basket. Turn off your heater and pump before cleaning.I have 2003-vintage H400IDL2 Low NOx heater. Pool controls are Aqualink RS6. A few years ago the temperature sensor circuit on the RS6 board failed, so I have been manually turning the heater on/off since. (Previously the heater was in BO mode for remote operation.) I just upgraded the RS6 to iAqualink with the IQ900RS kit (rev R firmware).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.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.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, 150,000 BTU, Natural Gas, Pool and Spa Heater delivers energy efficient heating to your pool's water that you can trust. Hayward Universal H-Series - Versatility & PowerPlaster. Chlorine. Salt Water Generator. SWG Type. Pentair Intellichlor IC-60. Aug 27, 2021. #2. Welcome to TFP. b0 code simple means the heater is being controlled by the remote 2 wire connection to your Prologic and will not respond to the keypad controls.Apr 4, 2020. #7. You can check the ignitor with a meter by measuring the ohms at the 2 leads coming from the ignitor. An older silicon carbide ignitor ( shiny crystalline and fragile ) will normally ohm out at 45-150 ohms. A newer silicon nitride ignitor ( Looks like a smooth dull black matchstick ) will normally ohm out at about 11-17 ohms.Pacific Gas & Electric Company (PG&E) Water Heater Rebates. PG&E offers a $125 rebate for gas storage water heaters with an efficiency rating of .67 or more. PG&E offers a $300 rebate for electric heat pump water heaters with an efficiency rating of 2.0 or more. *Tankless water heaters do not qualify.My heater is a Hayward pool heater. I was sitting by the pool and all of a sudden there was a loud banging sound, I ran over to the heater and turned it off. The code that was displayed was H5. … read moreTroubleshooting Guide for Hayward and Summit Heat Pumps. Hayward-Summit Technical Support: 800-432-8387. Check the installation of the heat pump first to assure it is installed per the installation manual. Ensure the electrical hook-up is correct by checking the breaker is sized correctly for your unit and the wiring is per the National ...

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View and Download Hayward H250FDN service & installation manual online. POOL AND SPA/HOT TUB HEATERS. H250FDN heater pdf manual download. Also for: H250fdp, H350fdn, H350fdp, H400fdn, H400fdp.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.Aug 22, 2022 ... A super easy fix for a stuck button on a Hayward pool heater. Pool Heater Replacement Control Panel Keypad Membrane Switch Compatible with ...The electric heaters fit into compact spaces — even under spa skirts or steps. Like all Hayward heaters, they are easy to install and service. • 304 stainless steel tank, • 304 stainless steel threaded head, safety sensor electric heating element, • Service-ease design gives simple access to internal controls, • Heater on indicator light,Best Answer: Turn off the power to the Hayward pool heater. Locate the CE code on the display panel. Press and hold the "Reset" button for three seconds. Press the "Up" or "Down" arrow keys to scroll through the menu options. Select the "Service" menu option. Enter the four-digit service code. Press the "Enter" button.Adjust the water flow or call a professional if the pressure is too low. Clean the Filter: A dirty or clogged filter can cause Hayward Heater CE Code errors. Clean the filter thoroughly and replace it if necessary. This will improve the heater’s efficiency and prevent future issues. Inspect the Ignition System: If the above steps do not ...Nov 16, 2023 · The SF code on your Hayward heater’s display stands for “Stack Flue Sensor Failure.”. This code indicates that there’s a problem with the sensor responsible for monitoring the flue gases in your heater. Flue gases are the byproducts of combustion, and monitoring them is crucial for safety reasons. Common Causes of SF Code. By carefully following these steps and additional advice, you should be able to effectively diagnose and resolve the AO code issue on your Hayward heater. Have a question about pool heaters? Airlucent owner Tim David would like to answer your question in an upcoming article, call (256) 399-9708 or contact David via the contact page .

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Heat Pump, Heaters, Filter, & Pumps. Hayward-Goldline Salt Systems & Automation. Ok, if your pool equipment is this old, it is likely not under warranty, unless it is a heat pump exchanger. But we'll go through the breakdown anyway. HAYWARD Hayward Aqua Rite Hayward AquaRite HAYWARD ASTROLITE hayward cleaner Hayward ColorLogic 5g Hayward ...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: 1-800-741-9956. ... Hayward W3HP21104TC Pool Heat Pump - Lo Ambient - 110,000 BTU Features & Benefits:CE code indicates "Communication Error". Problem is communication between integrated control board and display board. Display board (DB) is the ...Oct 16, 2023 · By carefully following these steps and additional advice, you should be able to effectively diagnose and resolve the AO code issue on your Hayward heater. Have a question about pool heaters? Airlucent owner Tim David would like to answer your question in an upcoming article, call (256) 399-9708 or contact David via the contact page . 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. Start heater again. Does low side pressure drop below 30 psi for R-22 unit or 80 psi on a R-410A unit? Figure C. Replace LP switch. See Note 2 below NO Abandon existing switch on Hayward R-22 units. Replacement switch is a screw on switch. Use a swivel tee on the low side access port. On Summit and R-410A (4T) Hayward units the existing switch ... Our comprehensive Hayward Pool Heaters error code guide will explain common issues, provide tips, and show you how to read your model's error codes. …View and Download Hayward H150 installation, operation and service manual online. H150 swimming pool heater pdf manual download. Also for: H250, H200, H300, H350, H400, H210.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.The codes indicate specific issues that need to be addressed to get the heater running again. By knowing what each code means, you can identify the problem and find a solution more quickly.On 1/27/2010 at 7:57 AM, txpoolguy said: CE code indicates "Communication Error". Problem is communication between integrated control board and display board. Display board (DB) is the one mounted on the backside of the keypad. Integrated control board (ICB) is the one back in the heater behind the display board. ….

Hayward makes a range of pool filters, and only some of these filters require backwashing. The filters that do require backwashing are often fitted with the Hayward Vari-Flo multip...How do I reset my Hayward pool heater? Resetting a Hayward pool heater is a very simple process. Just follow these steps: 1) Turn off the power to the pool heater by shutting off the breaker switch. 2) Disconnect the wires from the terminal block. 3) Remove the cover of the terminal block.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 remainsIf 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 ...The IF code on your Hayward pool heater points to an ignition problem, usually occurring when the heater fails to ignite or the ignition process is interrupted. Advertisment. Read more The Ultimate Guide to Stronger Floors. However, This could result from gas supply issues, ignition control module problems, or defective igniters. Timely ...When it comes to taking care of your pool, one essential component that requires regular maintenance and occasional repairs is the pool pump. A well-functioning pool pump ensures p...Sep 10, 2023 · In this section, we’ll delve into the hayward pool heater p5 code, its features, and how it works. So, let’s dive in! Features Of The Hayward Pool Heater P5 Code: Energy-efficient: The hayward pool heater p5 code is designed with energy efficiency in mind. It utilizes advanced technology to ensure optimal fuel consumption, resulting in ... 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.Hayward Serial Numbers and Date Codes 1. Heat Pumps, Heaters, Filters, Pumps February 2004 - February 2010 ... Hayward 2015 ID Tag . 3A0112 = Standard Warranty Term 3A0112 = Product Family 3A0112 = Year of Manufacture 3A0112 = Month of Manufacture 123456 = Manufacturing ID 2. Chemical Automation, Controls, Lighting (Prior to 8-5-2011)Please enter a zip code within the 48 contiguous states. i. Please enter a valid zip code Your zip code will help us to provide you with the most up-to-date delivery information ... (Liquid Propane) gas can be hazardous by combustion or exhaust of the pool heater. Hayward pool equipment had created the Pool heater FAQ below to help the pool ... Hayward heater if code, Hayward Universal H-Series Low NOx Induced Draft Pool & Spa Heater | 200,000 BTU | Propane | W3H200FDP. The Hayward Universal H-Series gas heater is the "universal" energy efficient remedy for any new or existing pool or spa. An industry leading hydraulic design reduces circulation pump run time to provide energy savings of up to 18% when ..., 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..., 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..., 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, 400,000 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 & Power, Dec 15, 2023 ... If you are getting this HL1 fault code on your Raypak Pool water heater, this video explains what is going on., Pentair Master Temp 400. No service system or service heater lights. No codes lit on back of the board. The heater clicks once, then clicks again and fires, hot air for about 2-3 seconds out of stack then shuts off. Attempts to fire again. Same thing. Water flow is fine. Gas was checked on line and no leaks, correct settings per model instructions., The hayward pool heater h5 code is designed to effectively address gas supply problems, ensuring optimal performance and uninterrupted pool heating. With its advanced technology and reliable functionality, it ensures a seamless and hassle-free pool heating experience., GAS HEATERS: Universal H-series ASME Heater: 3 Years: CHLORINE GENERATOR & UVO3 SYSTEMS: Saline C ® 6.0 & 11.0 Salt Chlorine Generators: 2 Years* None: 2 Years* None: 2 Years** 2 Years* *Salt cells carry an 18 month parts warranty. * No field labor, factory repair labor only. **Salt cells carry a 1 year full warranty & a prorated warranty for ..., 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., This pool heater transfers 250,000 BTU of heat, and is fitting for swimming pools with a surface area of up to 750 square foot. This pool heater can raise the temperature of 1,000 gallon pools to 15 degrees Fahrenheit in just 36 minutes. 7. Hayward Universal H-Series Pool and Spa Heater – Model#H350FDN., Error Code IF. 9. Error Code IO. 10. Error Code LO. 11. Error Code PF. 12. Error Code SB. 13. Error Code SF. 14. Error Code bO. FAQs: How do you clean the heat exchanger of a Hayward gas pool heater? Can a pool heater get clogged? Can a gas pool heater explode?, SPECIFICATIONS AND DIMENSIONS H500FD H400FD H250FD H200FD H150FD BTU/hr 500,000 399,900 250,000 199,900 150,000 Thermal efficiency 83% 84% 84% 83% 82.7%, Test 2: Load Pressure Test. Here the aim is to check and measure if the gas supply or pressure holds up when the heater is in use. The manometer should again be attached to the INLET section of the gas valve. When conducting this test the Hayward pool heater should be turned to the on position. If your manometer reading is showing low loads ..., First, turn off the power to the pool heater circuit breaker. This should immediately shut down the pool heater. If the circuit breaker does not shut off, you should call a professional service technician to come out and inspect the problem. Next, check the fuse box located near the pool pump. The fuses should be in good condition., Troubleshooting Guide for Hayward and Summit Heat Pumps. Hayward-Summit Technical Support: 800-432-8387. Check the installation of the heat pump first to assure it is installed per the installation manual. Ensure the electrical hook-up is correct by checking the breaker is sized correctly for your unit and the wiring is per the National ..., The Universal H-Series Low NOx heater has an 84 percent industry-leading thermal efficiency and complies with all current California air quality emission standards. The 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., Use the “Mode” key to change your heater’s settings. Select the “Standby” Option and put the heater on it. Press the remote’s “Down” key and hold it and then press the Mode key and hold it simultaneously. For 3 seconds, hold down both the “Down” and “Mode” keys as long as the “bo” code doesn’t remove from your ..., 301 Moved Permanently. nginx/1.18.0 (Ubuntu), Dec 21, 2023 · 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. , Benefits of Solar Water Heaters - The benefits of solar water heaters are numerous. Visit HowStuffWorks to learn all the benefits of solar water heaters. Advertisement The benefits..., My pool heater stopped working and the display showed IO which means the igniter is bad. It was replaced and still showed that code. Troubleshooting came to..., 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., Hayward H400FD Manuals. Manuals and User Guides for Hayward H400FD. We have 13 Hayward H400FD manuals available for free PDF download: Service & Installation Manual, Manuel D'entretien Et D'installation, Owner's Manual, Quick Manual, Quick Reference Manual., Item No. 350886 | Manufacturer SKU: W3H100ID1. $1,299.99. Buy in monthly payments with Affirm on orders over $50. Learn more. Hayward W3H100ID1 H-Series 100,000 BTU, Natural Gas, Above Ground Heater it's a smart choice for any new installation or existing system. More Details., 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., 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..., When it comes to taking care of your pool, one essential component that requires regular maintenance and occasional repairs is the pool pump. A well-functioning pool pump ensures p..., Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience. Gain insight. Support. ... Heat Pump Heaters Installation & Operations Manual (513000003301G) (opens in new tab) Manuals. HP50HA2 & HP70HA2 Heat Pump Manual (51300022501RevE) (opens in new tab), 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. , 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., The hayward pool heater h5 code is designed to effectively address gas supply problems, ensuring optimal performance and uninterrupted pool heating. With its advanced technology and reliable functionality, it ensures a seamless and hassle-free pool heating experience., 1 How to Read Hayward Serial Numbers and Date Codes. 1.1 Pumps, Filters, Cleaners, Heaters, Heat Pumps, some Incandescent Lighting and Accessories; 1.2 Controls, Electronic Chlorination, ColorLogic Lighting; 1.3 Heat Pumps, Heaters, Filters, Pumps August 2015 - Present; 1.4 Heat Pumps, Heaters, Filters, Pumps March 2010 - July 2015, "IF" Code 52-55 13. "AC" Code 56-57 14. "AO" Code 58-60 Heat Exchanger: Flow requirements 61 Heat Exchanger: Inspection 62 Heat. Hayward H400FDN | Universal H Series Troubleshooting Guide - Page 4.