Feb-02-2015 02:26 AM
Feb-07-2015 09:47 AM
Feb-02-2015 12:19 PM
turbojimmy wrote:
Thanks for the replies.
So would a faulty sail switch kill the fan right away? Or just prevent ignition? Whatever it is, it seems to be getting worse. It's getting harder and harder for the fan to start again. It seems that shutting off the TStat and turning it back on works better than moving the temp setting, if that's a clue.
When the fan doesn't run, I can still hear the clicking at the furnace when I move the TStat. So I'm now leaning toward blower or sail switch (if it prevents the fan from running).
Feb-02-2015 12:12 PM
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.
Feb-02-2015 12:00 PM
Feb-02-2015 09:59 AM
Feb-02-2015 08:26 AM
Feb-02-2015 08:23 AM
turbojimmy wrote:Looks like you asked something similar back in October.
I apologize if I've asked this before. I searched my old threads and didn't see it.
Feb-02-2015 05:02 AM
Feb-02-2015 04:59 AM
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.
Feb-02-2015 04:54 AM
Feb-02-2015 04:52 AM
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.
Feb-02-2015 04:44 AM