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View Full Version : 2 wire thermostat replacement


bobrich
Nov 14, 2013, 03:11 AM
I have a 2-wire (red and white ) coleman manufactured home thermostat that sticks and I've tried to replace it to no avail. Replacement works till I try to switch the unit over to air then it runs constantly(as if in "fan only" mode)
How do I replace a 2-wire heat and air system thermostat?

Grady White
Nov 16, 2013, 08:43 PM
I've only encountered one of these 2 wire heat/cool systems in the 30 years I've been in the trade. If I recall correctly, I had to go back with the same type of thermostat as originally installed.