Question about Hayward H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1
Either the fan is not working, or the fan prover (pressure switch) switch is stuck. If you can hear the fan going strong, it is most likely the switch. You may try to just clean it out, but you may need a replacement.
This error is produced when the blower prover switch does not close after the blower starts, the control will stop the ignition and go into lockout. Automatic reset is immediate after the blower prover switch closes.
If you keep having this problem, contact a reputable service company, especially if it's under warranty.
The link to the owners manual is below, it references fault codes, etc..
Hope this helps.
Posted on Dec 31, 2010
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Posted on Jan 02, 2017
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