Brooke eklund Posted on Dec 05, 2015

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Heat and ac controls quit working. Changed the control unit and still nothing. Checked fuses and all good.

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jack layton

Chevrolet Master 5,569 Answers
Posted on Dec 05, 2015

jack layton

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Joined: Nov 12, 2014

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If your saying the blower motor doesn't work, turn on the hvac and check voltage and ground at the blower motor connector. Go from there.
Can you check for applicable hvac trouble codes? Some of the national brand auto stores will check codes for free, if there are any.
At the applicable fuses, you need to check fuse circuit for voltage. Even if fuse is good, if no voltage on the fuse circuit, the circuit is still dead. Use a testlight to check voltage.

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Heat and ac controls quit working. Changed the control unit and still nothing. Checked fuses and all good.

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jack layton

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Heat and ac controls quit working. Changed the control unit and still nothing. Checked fuses and all good.

1 Answer

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