Gas fireplace was originaly installed without a room (wall thermostat),we have since had one installed but this year when the fireplace comes on and heats up the fan does not come on. Yes I have checked to make sure the fan is in the on position. I can make come on manually but it will not not function automatically on its own. Any ideas?
Answer:
You might want to check the thermostat wiring and if it's good, you might have to change the thermostat itself.