I have the printouts and went out to check things out...
Previous trip, the gas water heater fired right up, no fault light, only a few seconds delay before sparking.
Last trip, immediate fault light, no sparking.
Troubleshooting,
Removed drawers to reach control board, unplugged and moved to side of water heater accessible from cabinet under stereo. Discovered high pitched noise coming from control board along with the fault light. So with meter in hand, I turned on the switch, got the immediate fault light and high pitched noise as before, but by the time I was ready to check voltages on control board, it sparked and started. I still have the noise, perhaps it was there before but I could not hear it under/inside the cabinet??
I did not time it with stop watch, but it appears a ~10 second delay and then it starts? Is this normal?
