Have a wall-mounted 240v thermostat that serves 2 baseboards in the same room. Since the room is seldom used, the thermostat is in the 'off' position. The other day I was in the room and it was like a sauna. Baseboards were hot, as was the thermostat itself. Turned the breaker off and in a couple of hours the room cooled down.
This evening I turned the breaker on, with the themrostat still in the 'off' position, and in 30 minutes or so the room was warming.
Is it possible that I have a thermostat that has failed? If so, what is the recommended test procedure? The thermostat in question is an Intertherm Model 7-D. I believe this is a 4-wire stat.
Last edited by Back40Help; 01-20-2011 at 10:43 PM.