Bcouse1313 Posted June 11, 2017 Report Share Posted June 11, 2017 I have a Hayward Heater H400. It was heating fine and then stopped working. It's trying to ignite. It's just clicking. Pump pressure is 17. All safety devices check out good. Pressure switch good. 24v coming out of the transformer. Any ideas? Quote Link to comment Share on other sites More sharing options...
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