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Old 10-10-2009, 07:13 PM
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Airjer_ Airjer_ is offline
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Re: heater only works on high

Sounds like a blower motor resistor. Check for continuity between the pins on the resistor that the orange wire and the black/white wire go to. If its open than the resistor is bad. High speed bypasses the resistor and is grounded through the switch.
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