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Hi Ken, Happy to report that the furnace has been running as of this morning. I sort of hate to admit it, but the final problem turned out to be a faulty splice in the thermostat wire. I don't...

Hi Ken, The furnace is an Armstrong Ultra SX 90 (upflow).
Mod# GUK125D20-1A Serial# 8493611595.
I haven't checked all of the air passages for clear flow yet. There had been issues with the cup...

Hi, Thanks for the advice. As I noted before there is a switch mounted on a device which has a vacuum (air line) line going to it, which is connected via tubing to a port on the induced draft fan...

Hi, There is a lead going to the module which goes through a switch which is connected to vacuum (?) lines from the burner air fan and the gas valve. There is no power going through that switch at...

Hey Glinda, A quick answer here is Shadow of the Vampire. It is the 1st movie I saw on DVD, not that that has any bearing on it. If you love classy monster movies, you'll like this. A 55 y.o....

Hi, I have an Armstrong hi-e furnace, that I suspect has a faulty spark module. (The blower control board, the gas valve, pilot, and spark device are all new). The module is a Honeywell S8660k. ...