20 Most Recent Hayward H-series Electronic Gas Pool Heater H400 Questions & Answers


there is no error code 60 in the world of hayward. is there any chance you are seeing bO? if so, that stands for bypass on and the heater is being controlled by a remote controller.

Hayward H-series... | Answered on Jul 26, 2019


heater shows power, I had to replace three mother board according to tec. Still no sign of egniting. All it does is shows code of bd? what is that? do i need to reset something. help prices are killing me.

Hayward H-series... | Answered on Jun 04, 2019


to start with the basics, make sure there is enough water flowing through the system to activate the heater. you can put sand filter in whirlpool or bypass mode. if there is enough flow through the system, make sure the heater isnt on bypass. make sure that the gas supply is turned on at the heater AND at the meter. if your heater has a pilot light, make sure it is lit.
if you still have issues, you will have to get a service company in

Hayward H-series... | Answered on Feb 12, 2019


"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 diagnostic fault code of "IF" which stands for Ignition Failure. Undetected gas pressure problems if not investigated properly may result in unnecessary replacement and servicing of your Hayward Pool Heater.

Hayward H-series... | Answered on May 18, 2018


try turning heater all the way up see if control of spa controls temp

Hayward H-series... | Answered on Mar 13, 2018


overheating check gas pressure and burner tubes high limit

Hayward H-series... | Answered on Dec 09, 2017


bad heater exchange replace or replace heater keep chemicals if balance see pool school.com

Hayward H-series... | Answered on Dec 09, 2017


check safety circuit and gas and ignitor

Hayward H-series... | Answered on Dec 09, 2017


display bad

Hayward H-series... | Answered on Dec 09, 2017


check gas and ignitor if ok pressure switch or safety circuit

Hayward H-series... | Answered on Dec 09, 2017


make sure chemicals in balance PH 7.2 to 7.8 alk 80 to 120 if one or both too low will eat copper heatexchange

Hayward H-series... | Answered on Dec 09, 2017


Open the main door, locate the 2 white fabric coated wires, they go down towards the base of the heater. This is your igniter, usually a 5/16 nut driver will be the tool you need to remove it.

Hayward H-series... | Answered on Nov 22, 2017


pull off the side panel, the thermistor is located in the header and can be removed by backing out the nut, and then pulling the sensor straight out.

Hayward H-series... | Answered on Sep 04, 2017


check pressure switch and filter pressure or copper line to pressure switch or fusible link

Hayward H-series... | Answered on Mar 19, 2016


check pressure switch if voltage both sides ok if not bad switch or clogged copper tube also check filters

Hayward H-series... | Answered on Mar 19, 2016


it is connected to the copper line going into the heat exchange two wires going to the board if voltage both sides ok check hi limits

Hayward H-series... | Answered on Mar 19, 2016


try spa mode if not need new display

Hayward H-series... | Answered on Mar 19, 2016

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