Sounds like its the PCB model.Housewarmer had a helluva lot of trouble with the one with the big circuit board as it was strapped to the lefthand side at the back of the fire.The PCB does have a fuse that could have blown.The other type of Housewarmer has an ignition box also this time to the right hand side.Hope neither is the problem as cost is ridiculous.
Tony S, February 2009