I have a customer that has a GEM-42 gas fireplace made by Heat & Glo that ignites sometimes, and sometimes not. When it does not lite, there is no gas or spark to the pilot.
I've verified 110VAC to the junction box and that there is 2.9v going into the module from the transformer. The wall switches will not turn on the unit, but the local switches sometimes allow the system to operate. Would the module, if bad, operate sometimes?
I have the troubleshooting tips from the installer's manual, but that isn't much help. Where can I obtain a troubleshooting flow chart with voltages at the different terminals? It may be a wiring issue because it is a rat's nest of wiring under there.
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Thanks guys !!!