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How should I go about trobleshooting a 2-stage home Air conditioner digital thermostat that will not come on?

Oct 25, 2009 by kim | Posted in Home Theater

Yesterday, all of a sudden, the display went blank. The troubleshhoting manual said to "make sure power was on to the furnace and 24-vac between R & W. If C is used, 24 vac between R & C" what does this mean and how can I attempt

Heres the HVAC Basics if you wanna attempt to fix the issue yourself. You will first need to know what the wires do and what there connected toThe Red wire is your switch leg (connected to the transformer), The W White wire is used in heating mode (turns

ATXboi S | Oct 28, 2009

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