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Heater only works on full speed - Cars & Trucks

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  • Cars & Trucks Master
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No sign of vehicle here but would say look at the blower motor resistor as the culprit. Will likely be under dash in glovebox area . When no make, model shown in posting, I usually advise following wiring from blower motor back to dash controls and you'll usually find it not far from blower motor connection.

Posted on Jan 16, 2013

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Posted on Jan 02, 2017

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