I have two wires connected to my furnace thermostat. There is a place labeled G on the thermostat. Can I simply run a wire from the G terminal on my thermostat to the terminal labeled G on my furnace fan relay to operate the fan separately?

I have a 10 year old Heil furnace. When the furnace tries to come on the combustion fan comes on but nothing happens after that. The pilot does not come on, no flames, nothing. I hired a service tech and he said that we need to change the gas valve since it faulty. Is there anything else I...

How do I wire my inline duct fan to my Goodman model gmp100-4 gas furnace fan so that the inline duct fan comes on and off when the furnace fan does? I understand that I need a relay from the inline duct fan but don't know where to connect the relay to the furnace.

I have a Comfortmaker Furnace (approximately 1998/99) and the fan will not turn on allow the furnace to heat. When I try to turn the furnace on it blows a 3 amp fuse at the blower motor. I removed the fuse and jumped it and all it will do is make a faint buzzing noise and not turn on. I can...

I have a forced-air gas furnace w/o AC and a simple dial-type heat-only thermostat.  How do I change my system so that I can manually operate the furnace fan when not calling for heat? Merlyn