Hello, I have a Heatilator gas fireplace model GC150 NAT that will not start. I just bought this house and do not have a manual so I can not give much historical info. I believe this has the IPI system and utilizes a wall switch. When I turn on the wall switch I do not hear any clicking sounds and the pilot does not light. I plugged a light into the transformer box under the fireplace and switched the switch on and the light did not light. Not sure what that means but I read it in a post here. Any thoughts on other diagnostics for this model? THanks!