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Why semi truck ac and heater stop blowing?

Updated: 8/21/2019
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9y ago

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The problem exists somewhere in the circuit for the HVAC blower. Check fuses and relays. If they check out, check for power and ground at the weatherpack terminal which connects to the HVAC blower. If that checks out, then your blower motor is probably bad.

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9y ago
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Q: Why semi truck ac and heater stop blowing?
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