Recent content by sandmant

Thank you both @swamprat69 and @ajw22! Since the flame sound dies slowly over several seconds, and I hear nothing beforehand, and the clunk comes 10-20secs later, it sure seems like the gas supply just "goes away". But the only other gas user I have that is currently active is a 40gal water...

I have a 10yr old (but clean, lightly used) Hayward H400FD heater that began acting up several months ago. Unique from many other IF-related posts I've seen, mine always works perfectly for at least 30 minutes before cutting off, then going through 3 re-ignition attempts, then going to...

Goolkeeper, did replacing one or both boards solve your problem? I have the same issue and question as you with the same heater, except my circuit boards look brand new with no signs of heat damage or corrosion. Just past 3 year warranty. I've always turned the heater on via my control panel...