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View Full Version : Intertherm model 063


gawinn56
Dec 10, 2008, 10:20 AM
Gas furnace works only when the main off/on switch is in on position, need a wiring diagram for unit and suggestion on what problem is

hvac1000
Dec 10, 2008, 10:24 AM
Incomplete model number

BTW it is supposed to work when the switch is on?