Question about Hayward H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1
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 Sep 16, 2009
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If communication between the ignition board and the display board is not established
within 3 s of power-up an error will be displayed. After communication is
established, if it is lost for 30 s, the error will be displayed. The error code will
be cleared upon a valid data exchange between boards.
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