Search: Posts Made By: Bob14525
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07-06-13, 12:09 PM
Replies: 8
Views: 8,537
Posted By Bob14525

Adam, G is your air handler (indoor fan), so...

Adam,

G is your air handler (indoor fan), so it should read 24V (from common or ground) when the T-stat is calling for heating or cooling, so that is normal. However, when the T-stat is calling...
07-06-13, 08:49 AM
Replies: 8
Views: 8,537
Posted By Bob14525

Are you saying that you're not seeing 24VAC at...

Are you saying that you're not seeing 24VAC at the wires that connect to the low voltage side of the contactor (with the wires disconnected)? If so, then it's one of two things: either a problem...
07-05-13, 05:14 PM
Replies: 8
Views: 8,537
Posted By Bob14525

The contactor has a high voltage (240V) side, and...

The contactor has a high voltage (240V) side, and a low voltage (24V) side. The low voltage side gets it's power from the 24V transformer passing through the thermostat. When the thermostat calls...
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