Replacing thermostat for gas furnace only
Have a 2003 Fourwinds with the old style wall thermostat with the hard on/off switch and temp adjustment below with just bars (no numbers). On several occasions, the furnace will start and heat up cam...
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Had those symptoms, got the digital thermostat, furnace still does that. It is more to do with the burner and ignition.
After some efforts there, it mostly cycles ok, but once in a while just blows cold air and you have to shut it off, wait till fan stops, turn it on and after fan starts wait for the boom when it comes on properly.
It has nothing to do with the thermostat in our case. Might in your case, but don't be surprised if that doesn't solve everything.
After some efforts there, it mostly cycles ok, but once in a while just blows cold air and you have to shut it off, wait till fan stops, turn it on and after fan starts wait for the boom when it comes on properly.
It has nothing to do with the thermostat in our case. Might in your case, but don't be surprised if that doesn't solve everything.
