Furnace runs for 8 minutes at a time.
This is driving me nuts. For the past few months, my furnace has adopted this annoying feature in that it only runs for eight minutes at a time. To make it run more, you have to turn the thermostat ...
Forum Discussion
The limit switch should never be able to shut the blower down- it just shuts the flame down. On a hunch, simply because the motor has been replaced, I would look carefully at the blower rotation- makes sure it is turning the right way. I would also look at the combustion blower wheel to make certain it is installed correctly- I have seen them installed backwards, with the opening out, rather than in.
The limit switch is the only part *meant* to be temperature sensitive in there, though if it is getting way to hot, all bets are off.
I'm not sure what the surface temp of the heat exchanger should be, but it would be pretty hot.
You can bypass the thermostat right at the furnace- just tie the 2 blue wires together.
The limit switch is the only part *meant* to be temperature sensitive in there, though if it is getting way to hot, all bets are off.
I'm not sure what the surface temp of the heat exchanger should be, but it would be pretty hot.
You can bypass the thermostat right at the furnace- just tie the 2 blue wires together.
