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Model: Goodman AWB30-08C Electric AC/Heat

I'm hoping someone can help me identify the 24V C wire. Fortunately the thermostat line has a spare wire already run, so I just need to find the C wire in the HVAC. See diagrams below:

enter image description here

enter image description here

I can also post a pic of the exposed wiring if need be.

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up vote 0 down vote accepted

The wire labeled BL in both images, should be the C wire. W and BR activate the heat relay. G activates the blower time delay relay. PK takes 24v to the thermostat.

If you're looking for the C wire, because you want to install a fancy new WiFi thermostat. Make sure the transformer can support the additional load, before you connect the thermostat. It doesn't look like there's a fuse on the transformer, and you wouldn't want to burn up the transformer.

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Thank you for the great explanation, I will try it! – Robert Jun 30 '14 at 23:07

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