c wire help

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Old 11-21-12, 01:54 PM
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c wire help

Trying to set up new honeywell 7 day thermostat. I believe wiring at thermostat is correct. My old thermostat didn't require a c wire but it was there unused. The problem is wiring at furnace. The blue c wire is not connected to anything. Where do i connect?
 
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Old 11-21-12, 06:42 PM
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Open the furnace panel a take a picture of the low voltage terminals.
 
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Old 11-27-12, 10:43 AM
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thanks for the reply here is the picture
 
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Old 11-27-12, 11:07 AM
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I connected blue to yellow and white and heat works but not AC
 
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Old 11-27-12, 11:59 AM
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YOu need to wire the blue wire to C on that terminal block that you just posted a photo of.
 
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Old 11-27-12, 12:46 PM
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The first pic shows connection of ac and furnace. Tw c wire would have to be connected to one of those connections I would think and not directly on furnace panel?
 
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Old 11-27-12, 01:56 PM
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C wire goes on at C at the furnace.
 
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