chaffoteaux celtic 2.2 ff, pilot light wont stay on?

On a chaffoteaux celtic 2.2 ff, the pilot light has needed resetting a few times lately, now it wont stay on at all when I release the reset button, Ive tried bypassing the thermocouple and exchanged the PCB for a second hand one I happened to have but I think whatever controls the gas supply for the pilot light isn't getting a signal to stay open. all other functions, ie, fans time clock etc, seem normal.
chris howson, November 2007
I have the same problem , plumber said I might need a new gas valve.

Joe, January 2008
I have the same problem , plumber said I might need a new gas valve.

Joe, January 2008
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