Manuals through 2025 now available!

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LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Blower Motor: Testing and Inspection

Blower Motor Noise Diagnosis:

BLOWER MOTOR AND WHEEL ASSEMBLY
Vibration and/Or Noise Diagnosis
The blower speed switch, in conjunction with the resistor block, supplies the blower motor with varied voltage.

Caution: Stay clear of the blower motor and resistor block (Hot). Do not operate the blower motor with the resistor block removed from the heater A/C housing.

Refer to the Blower Motor Vibration/Noise chart above for diagnosis.