Air conditioning knob doesn't blow on the lower settings.

[7thWheel]

Hey all. My air conditioner/heater doesn't start blowing until I turn the knob to the higher settings. settings 1-3 don't cause the air to blow at all. When I switch it to 4-6 it cranks. Is this a fuse issue or do I need to replace something? Thanks in advance.

 

[02LTD2.0]

Blower motor resistor has failed.

 

[7thWheel]

Blower motor resistor has failed.

Thanks. Do you know if that's easy to replace?

 

[02LTD2.0]

Thanks. Do you know if that's easy to replace?

Don't know. Never had a resistor fail. I've had the blower motor itself fail but not the resistor.

 

[HotZ28]

I see no mention of the year of the car! Apparently it is the manual control which has a 3-speed resistor for the lower settings & a separate resistor for the high speed fan. Usually, on older cars, the resistors were mounted on the firewall fan box behind the engine.

 

[7thWheel]

I see no mention of the year of the car! Apparently it is the manual control which has a 3-speed resistor for the lower settings & a separate resistor for the high speed fan. Usually, on older cars, the resistors were mounted on the firewall fan box behind the engine.

My bad. It's a 2002.

 

[HotZ28]

IIRC, the resistors of the '02 are located near the fan motor under the passenger side dash.

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[02LTD2.0]

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