Lawn & Patio: Hayward H400FDN Universal H-Series Low Nox 400,000-BTU Natural Gas Pool Heater - Hayward
Lawn & Patio: Hayward IDXL2ICB1931 Integrated Control Board Replacement for Hayward H-Series Low Nox and Hot Tub Heater - Hayward
Lawn & Patio: Hayward H400FDP Universal H-Series Low Nox 400,000-BTU Propane Pool Heater - Hayward
Lawn & Patio: Hayward FDXLBKP1930 Bezel and Keypad Assembly Replacement Kit for Hayward Universal H-Series Low Nox Pool Heater - Hayward
Home Improvement: Hayward Pool / Spa H-Series 150-400 Model Heaters Water Pressure Switch Assembly HAXPSA1930 - Advantage
Lawn & Patio: Hayward FDXLBVS1930 Blower Vacuum Switch Replacement for Hayward Universal H-Series Low Nox Pool Heater - Hayward
Lawn & Patio: Hayward FDXLFSKF15 1.5-Amp Field Wiring Panel Bulk Mini-Fuse Replacement Kit for Hayward H-Series Pool Heater, Set of 10 - Hayward
Lawn & Patio: Hayward IDXL2TRF1930 120/240-volt to 24-volt in AC Transformer Replacement for Select Hayward Heaters - Hayward
Lawn & Patio: Hayward FDXLTFP1400A Grey Asme Top and Front Panel Replacement for Hayward H400FD Universal H-Series Low Nox Pool Heater - Hayward
Lawn & Patio: Hayward IDXL2DB1930 Display Board Replacement for Hayward Universal H-Series Low Nox Induced Draft Heater - Hayward
Lawn & Patio: Hayward FDXLICB1930 FD Integrated Control Board Replacement Kit for Select Hayward H-Series Pool Heater - Hayward
Lawn & Patio: Hayward HAXCPA3403 H400 Control Panel Assembly Replacement for Hayward Pool Heater - Hayward
Home Improvement: Hayward Pool / Spa H-Series 150-400 Model Heaters Flange O-Ring 2pk O-43 HAXFOR1930 - Advantage
Lawn & Patio: Hayward FDXLHXA1400 Heat Exchanger Assembly Replacement for Hayward H400FD Universal H-Series Low Nox Pool Heater - Hayward
Lawn & Patio: Hayward FDXLTFP1400 Top and Front Panel Replacement for Hayward H400FD Universal H-Series Low Nox Pool Heater - Hayward
Lawn & Patio: Hayward IDXLTER1930 Heater Thermistor for H-Series Heater - Hayward
Lawn & Patio: Hayward FDXLFSKC30 Integrated Control Board 3-Amp Bulk Blade Fuse Replacement Kit for Hayward H-Series Pool Heater, Set of 10 - Hayward
Lawn & Patio: Hayward HAXHOR1930 Header O-ring Replacement for Hayward H-Series Ed1 and Ed2 Style Pool Heaters - Hayward
Lawn & Patio: Hayward IDXL2BVS1930 Blower Vacuum Switch Replacement for Hayward Select Hayward H-Series Heater (Discontinued by Manufacturer) - Hayward
Lawn & Patio: Hayward IDXL2BKP1930 Bezel and Keypad Assembly Replacement for Select Hayward H-Series Heater - Hayward
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Hayward H400 Pool Heater Popular Q&A
Q: How Do I Repair a Hayward H400 Pool Heater?
A: 1. Check and tighten the wiring. The pool heater user manual, listed in the References section, has a wiring diagram you can use to make sure no wires are cross... Read More »
Q: How Do I Repair a Hayward H400 Pool Heater?
A: Hayward recommends that only those qualified in pool repair attempt to fix the H400 gas pool heater. That being said, they do offer troubleshooting tips which m... Read More »
Q: Hi I hay a Hayward H400 pool heater. It is 2 Does anyone have an...
A: This is a water flow problem and will be the by-pass assembly in the water manifold. Or their may be an external by-pass wich will be a valve bridging the inlet... Read More »
Q: Hi, My new customer has a 6 year old Hayward H400 pool heater-
A: Hello, how can I help you today? Yes, you're on the right track, the IF is ignition failure. Now the first thing to do is turn the gas off so it can't fire, the... Read More »
Q: What is a error code bd on a h400 gas hayward pool heater
A: "IF" - Hayward Pool Heater Fails to Ignite: the most common reason for this problem is insufficient gas supply. The Hayward heater LED display will show a diagn... Read More »
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