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Lennox Furnace Stopped Working.
I have a Lennox Elite Series Furnace model GHR26 that just completely stopped working on me last night.
The led's are flashing as follows
Led 1 is off
Led 2 is slowly flashing
I've tried looking for an obstruction in the inlet/exhaust vent.....nothing..
I've released water from the condensation trap, I've taken all the small tubes off the pressure switch itself to make sure they weren't obstructed and I still have no furnace working(it doesnt start at all just a couple of clicking noises)
My next guess would be to replace the pressure switch itself, but before I do that how do I go about diagnosing the switch as being bad??? Ive checked for voltage and the blue wire shows about 28vac and the other one(purple wire) shows about 2vac throughout the sequence of events the furnace runs through. Any help would be greatly appreciated.