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Concorde forced air furnace gas smart valve
semmion
Dec 24, 2009, 07:39 AM
What is the operation of the smart valve in the furnace. What is the indication when it goes bad. Four elashes from the trouble light?
wmproop
Dec 24, 2009, 09:11 AM
What does the sticker/label on inside of the access door/cover say about diagnostic codes?