Re: Shutter-Opening Thermostat

Posted by Greenfield On 2021/10/17 5:06:30

Have you confirmed that the shutterstat is indeed non-functional? Heat up a pot with about one inch of water on the stove to about 150 degrees with the stat in it and check for movement of the bellows. After warming up, let it air cool back to room temperature (don't shock it) Also, you should have a low tension return spring on the top end of the shutter assembly to help the shutters close. I'd have to believe that the spring takes a lot of stress off the stat during the cool down.

PS - If you have a problem that money can fix, then it really isn't a problem.