Search found 7 matches

by rob77c
Fri Dec 23, 2011 8:02 am
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

- blower motor goes on and off by itself

It's fixed! Put the new board in yesterday, and problem solved. Freon, thanks for your able assistance. Happy Holidays to all.

Rob
by rob77c
Tue Dec 20, 2011 1:13 pm
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

- blower motor goes on and off by itself

I think I'm done with my diagnostics. I removed the thermostat wires, the wires coming in from the AC unit, and the wires coming from the humidifier, and the fan and inducer motor still come on. I'll be ordering a new board today. Thanks for all the help, and I'll post an update once I get the new b...
by rob77c
Sun Dec 18, 2011 7:33 pm
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

- blower motor goes on and off by itself

That's a good suggestion. Even though I previously disconnected the thermostat, you never know if there could be a pinched wire on the way to the furnace. I'll try that tonight. Thanks for all of the help. Oh, one more thing. Today I pulled the green blower wire off the board. The inducer and blower...
by rob77c
Sat Dec 17, 2011 4:35 pm
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

- blower motor goes on and off by itself

More to the saga. Checked the board, and nothing unusual there. As soon as I heard the fan kick in, I took the door off to watch. The inducer fan and blower would both come on together. The inducer would then start and stop once or twice, all the while with the blower running. Once the inducer stopp...
by rob77c
Sat Dec 17, 2011 11:48 am
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

- blower motor goes on and off by itself

Thanks. First thing to note is that when the thermostat is on, whether it be heating or cooling, everything works fine. Cycles run as normal, with no problems. Then, out of nowhere, at no particular time of day, when the thermostat is off, or even disconnected, I'll hear the fan kick in. The inducer...
by rob77c
Thu Dec 15, 2011 7:12 pm
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

- blower motor goes on and off by itself

No way you know of to test the circuit board?
by rob77c
Wed Dec 14, 2011 9:30 pm
Forum: HVAC General Forum
Topic: blower motor goes on and off by itself
Replies: 14
Views: 9041

blower motor goes on and off by itself

Goodman 100-3 furnace, 1993. Blower motor (and exhaust fan) comes on and off randomly, even when the thermostat is set to off. Removed the thermostat and separated the - no change. Any suggestions appreciated.