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are all pipes back on now?
31 means an air switch is not closing when the exhaust fan starts...is the exhaust fan starting? And was anything done to vent pipe?
and are you sure it is not code 13?
Thank you...is the exhaust fan in top section turning on?
Ok we have 2 fans....one in the top section known as an exhaust fan....this takes exhaust up the chimney. Then we have the main circulation fan in bottom...that is the one that blows air out the vents/registers,
The one I am concerned with right now is the smaller fan in top section