Back from the customer's house. The furnace runs great by removing or
replacing the heat wire. Lights up, and goes right out. So, the conclusion
is either bad wire, or bad T-stat. I pulled the wire myself, and checked
that. Not shorted. Conclusion is that the YKW is defective.



--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"Stormin Mormon" wrote in message
...
I'm working (again) on a Heil. It's about 80K, upflow model. Older one, a 70
or 80 percenter.

Customer's complaint, keeps on running. House gets hot, and they have to
turn it off at the swtich on the side of the furnace.

He's changed the you-know-what a couple times. I pulled a wire for the YKW.

So, the fellow called me, and it's running right along. Wants to know if he
should change the YKW again. No, don't do that.

Last time it happened, I got him to call me right over. I pulled the main
cover, and tapped ont he box with the electric. Went right out. Aha! Relay
isn't releasing. Replace the relay.

And a couple weeks later, it's happening again. What's the odds of a bad
relay a couple months later? Not all that much.

what's the next couple things to check? Sticky gas valve would cause that
problem. Any other common problems?

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com