Furnace Troubleshooting
Long story short, i hope. Suburban sf 35 f furnace problem just started a month back in middle of some cold weather. worked fine then one day just didn't start up again. turned thermostat up , n...
Forum Discussion
opnspaces wrote:
If I follow correctly you can run the furnace while it's on the bench? Then when you put it back in the trailer it does not work correctly?
Before you buy a thermostat you might try a test of removing the thermostat off the wall and connect the wire on the terminal labeled R (or RW) to the wire on the terminal labeled W. If your theory is correct the Furnace should run and heat. Let it run for a minute then disconnect the wires and it should shut off. Now let it cool for a few minutes and connect the wires again. If it works flawlessly then you most likely have a bad thermostat.
Did that and nothing happened. Checked all wires on diff modes and only the red and blue wire had any power to it when running a/c. Used multimeter on all wires. No juice to white wire coming from thermostat in any mode.
