A/C Temperature control not working

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
May 10, 2011
Threads
14
Messages
59
Hi,
I am planning on going on a long trip during the weekend with my family. My A/C system had a problem where a loud noise was coming from the vent selector box behind the radio. So as a temporary solution I disconnected the connector to the damper servo motor used for hot/cold air mix (87106-60100). Everything worked fine other than the fact that I couldn't control the vents from the dashboard controls.

Yesterday I suddenly got activated and decided to get an A/C mechanic to attempt to fix the problem before my trip. Unfortunately he dismantled the damper servo motor (after removing the entire dash board) and replaced the plastic wheels, but I think he has turned the plastic wheels and the timing on the motor was messed up.

I noticed that the A/C (cool air) does not come out of the vents unless I have the temperature nob turned down all the way to COLD (that's below 18C), any setting above this puts out hot air from the vents. So naturally assuming that this problem was related to the dismantled damper servo, I again removed the connector leading to the repaired damper servo motor.

Now the problem had shifted to not being able to control the temperature at all, and no matter what temperature setting you are in, the temperature is always MAX COLD.

Can anyone pls advice on what could be wrong? right now I just want to get it back to how it was before I got the bright spark idea of repairing the damper servo motor, where I was able to set the A/C temperature.

Your help is really appreciated.
 
Hi,

Is anybody able to tell me if A/C temperature control (on the dashboard) controls the cabin temperature by switching the compressor ON and OFF? or by opening the flap to allow hot air in from the radiator coolant. I'm just trying to diagnose where the problem is, and whether it has anything to do with the faulty damper servo motor. Thanks.
 
Back
Top Bottom