My heater fan only works on the highest setting. Can you tell me why? And what can I do to fix it?
Saturday, October 24th, 2009 AT 8:23 PM
1 Reply
BLUELIGHTNIN6
MECHANIC
16,542 POSTS
Most common cause for this is a faulty blower motor resistor. Replacement of the resistor is required. First test your blower motor relay, if it tests good then suspect faulty resistor.