I've got a raypak p-m336a-en-c that has had some intermittent firing issues, and now just won't fire at all.
The pilot lights when CFH but continues to arch/buzz intermittently. I replayed the pilot assembly and continue to get the same thing, with no main valve click (open), only pilot open and lite.
I've pulled the burner out and cleaned and checked all wire connections and grounds.
I guess my next step is to test if I can activate the main burner valve. I was thinking about jumpering the +24 volts from the pilot valve to the main valve.
Is that something I can do safely?
If that's not the problem, then I'm guessing it must be the control board?
We recently had a VERY close lightening strike and I'm wondering if a ground surge through the grounding wire could damage the control board circuit?
Thanks for any insight on this issue. The heater is only in it's 3rd season of operation and was new when installed.