Hello,
I am having issues with our gas furnace starting.
When the thermostat clicks on the fan will turn on for 1-2 seconds then flip off. If I keep resetting the system then I can get it to turn on randomly after several tries of turning it off and on.
Does this seem to be a start capacitor problem? Any other ideas?
Thanks!
An update after investigating a bit further: The furnace is a Goodman GMP100-5. And the problem has to do with the exhaust fan not the main blower for the central system. So when the furnace tries to start up, the exhaust fan goes on for 1-2 seconds then will sometimes shut down. When this happens the only way to get it going is to constantly reset the system by turning the master switch on and off until the exhaust fan successfully fully starts. There doesn’t appear to be a capacitor conntected to the fan. The power for the fan goes directly to the circuitboard. Any ideas?
you probaly should have this checked sounds like one of the limit switches locking out the furances and you are reseting the board every time you mess with thermostat please be sure your furanance is not overheating this is dangerous
this sounds like the pressure switch to me let me see if i can find a link for you
could be a bad pressure switch (attached to that motor via small hose) or clogged exhaust. Maybe birds nest at the end of it…??
Most those new furnaces have a blinking light to lead you to the problem.
But basically… 1. exaust fan turns on
2. vacuum swich must be activated to continue
3. ignitor turns red maybe 15-30 seconds
4. gas valve turns on
5. flame sensor must detect heat to contiue
6. after a minute or so large fan turns on
7. until thermostat satisfied
8. there are several over heat sensors if one of those trips out usually the furnace will just run the large fan only and no gas…
Sounds like your not making it to the ignitor red stage so check out the vacuume switch… also a blocked flew will cause same problem.
Thats the best i know…
I have a kitchenaid model number kscs25fkss01, 6months ago it stopped dispensing ice, now water will not dispense and the light will not work. looks as though there is no power to the dispenser. is there a reset button?