Furnace Blower Question
I apologize if I've asked this before. I searched my old threads and didn't see it. I'm looking to fix this thing this week if possible. It's a 1984-era Suburban 35k BTU furnace. From a cold start,...
Forum Discussion
Grandpere wrote:turbojimmy wrote:Teacher's Pet wrote:
Circuit board was at the root of our furnace problems. We had no "clicking" of the ignition system after thermostat activated, when listening down by the furnace.
I get a loud click at the furnace when the thermostat calls for heat. Fan runs for a second or less and shuts off with the same loud click. Might be the board or maybe the fan motor is bad and drawing too much. The latter wouldn't explain why it stays running on a cold start.
The circuit board wasnt installed properly. It's hanging by the wires. Maybe I'll goof around with it to see if there's a loose connection.
The circuit board is suppose to be grounded to the chassis of the furnace, since it is hanging by the wires that could very well be the source of the problem. I am surprised that the furnace was working at all.
The furnace circuit/ignition module is NOT grounded to the chassis. It can "hang" and will still function correctly unless it is defective. Doug
