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I have a Hayward h400 that started whining in about 10-second intervals. I recently replaced the igniter and flame sensor as well as removed and cleaned all the burners. Soon after this repair the whining started. Research led me to believe I had a broken water diverter on the manifold. So I...

Howdy all, thanks for all the help over the years. I have a Hayward H400 IDL2 that consistently gets an IF error. When it first appeared it was intermittent, after a few cycles it would always lite. After troubleshooting it appeared to be the flame sensor, which I replaced. Problem was the...