Hayward HS error code on gas heater

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kbran333
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Joined: Thu 10 Jun, 2021 10:43
My Pool: Above ground 27' x 4' round pool. Hayward PowerFlo LX 1.5HP pump, Swimpro Voyager 150 filter system. Hayward Universal H-Series heater 150,000 BTU

Hayward HS error code on gas heater

Postby kbran333 » Thu 10 Jun, 2021 10:53

The HS error code is occurring as the temp in the heater increases 6 degrees within 60 seconds. It will shut off and display the HS error code after running for about 30 seconds. I ran the system without any filters to make sure there wasn't a water flow issue. Filter system is showing 20 PSI with and without the filter installed. Filter has been cleaned. I have also replaced the thermistor and pressure switch, did not help. I am running out of ideas on this one.


pool pilot
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Joined: Sat 19 Jun, 2021 14:52
My Pool: 20K gallons in ground

Re: Hayward HS error code on gas heater

Postby pool pilot » Sat 19 Jun, 2021 15:17


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