Hello, last night I put in a used hvac control unit since my old one had a broken temp selector slide **** and a catch in the track when sliding from hot to cold. The new one seems to work okay, but this morning I noticed that when the slide the temp control lever all the way towards cold (and would have the microswitch depressed) I am hearing a clicking sound from a relay somewhere under the passenger side of the dash. If I slide the temp control slightly to the right so that the microswitch is disengaged, the clicking will stop. I never noticed this with my old control. What exactly is it and how could it be corrected?

Thanks

 

Airflow Flap actuator motor (behind glove box) clicks as it tries and tries... Broken? drjp ? or smbdy posted here a story with pics... in january.

 

drjp? what's this?

 

...sorry my gibberisH: drjp is the nickname for the guy who used to post here... few months ago. He posted pics also of that clicking motor/flap assy beside the blower - as he repaired his problem.

 

thanks.. I'll see if I can find his posts.