Re: Propane water heaters
The last click you hear is the gas solenoid shutting off. The circuit board thinks that it did not light. Things to check,
Electrode clean? for can use steel wool of fine sand paper.
Wire connection at the electrode
Wire connection at the circuit board. Careful with this. Just unplug the connector and plug it in a couple of times.
If every thing checks out, it is probably the circuit board.
When you retire from fishing, then what?