My A/C is working, in the sense that it is blowing cold air. Yesterday while the car was running, it just randomly auto-changed (best way to describe it) and no longer responds to my changing of the knobs/desired output of A/C. After some simple googling it seems it 'could' be the resistor? Or is it a problem with the digital display? Thank you.
A/C Control Problem on 1999 Lexus RX300
by deta in Laredo, TX on April 15, 2011
A/C fan is always running high. I cannot change fan speed.
Problem started a few months ago and has gotten very consistent now. After driving for as little as 30 minutes, upon restart (could be minutes afterwards up to an hour), idle speed will be so low ...
the air conditioning is running fine but even after replaceing blend door motor still no heat operating ?