How do you fix something that won't stay broken?

Thanks O-B

Well the unit didn't fire up today.

On a possibly unrelated issue the converter fan won't shut off.
A call to the manufacturer revealed that it won't when there is a draw or load.
Not believing in coincidence I pulled the WH fuse then all the wires, still fan stays on.
I pulled all the fuses one at a time and the fan stayed on.
I have 5 breakers and did the same- fan turned off with the general circuit and main circuit.
The general circuit has 3 leads.
I'll have to run it down next week.