On Tue, 9 Jun 2009 18:42:09 -0400, "mmc" wrote:

The metal parts looked fine after I cleaned them up. How often does a
thermostat like these go bad?

I don't think it's a matter of time as it is cycles. Then again, I
think I've had one go bad on me on anything and that was a antique
tractor that was 50 years old.

By the time I need to do this again, I'll probably have lost my
"spares" or forgot about them anyway. I like to pretend I'm saving
money with stuff like this.

I hear that - been there. I amaze myself everytime I clean up my shop
- all the stuff I bought as "spares". The other day I found a bottle
of 3M Restorer that I never opened - has to be three years old. :)