HVAC Controller Replacement/Installation (Page 1/2)
VanGTP5000 JAN 18, 11:31 PM
I tried searching for a thread on swapping out a push button AC controller. I am pretty sure the two harness connections are plug and play, but I would like to learn how the cable is attached on the underside before I attempt to swap units.

Any help would be appreciated.

Thanks,

-Van
agranlund JAN 19, 03:10 AM
Hi Van,

This is how the unit looks on the underside at both extremes of the hot/cold slider:



--Anders
VanGTP5000 JAN 19, 08:21 AM
Thank you Anders. Do you recall how the cable attaches to the slider pin at the end?

-Van
viperine JAN 19, 11:43 AM
The cable is held in place with a press-on washer that is quite a pain to remove. A small flathead screwdriver and patience is your friend. Try to "walk" the washer back up the post, little by little. It's spring steel and keeps itself tight with "fingers" all facing inward on the plastic post.
A screw also keeps the cable sheath positioned stable at the HVAC controller unit, this will be obvious when you start pulling it out of the console and flip it over to view underneath.
VanGTP5000 JAN 19, 11:58 AM

quote
Originally posted by viperine:

The cable is held in place with a press-on washer that is quite a pain to remove. A small flathead screwdriver and patience is your friend. Try to "walk" the washer back up the post, little by little. It's spring steel and keeps itself tight with "fingers" all facing inward on the plastic post.
A screw also keeps the cable sheath positioned stable at the HVAC controller unit, this will be obvious when you start pulling it out of the console and flip it over to view underneath.



Thank you viperine! Good description...I need to remove my stereo before I can pull out the HVAC unit because the harness cables are pretty short in there. So this description gives me an idea of what I am up against.

Thanks,
-Van
Lambo nut JAN 19, 12:46 PM
A small screwdriver can work for the pressed on washer but I have had better luck with a couple of seal picks or dental picks. Trick is to press up on the inner fingers only going around in a circle. If you just try to pry on the outer rim it will get tighter and break the washer or the post. Just go slow and take your time. If you do break the washer, new ones can usually be found at the parts or hardware store.
VanGTP5000 JAN 20, 04:27 PM

quote
Originally posted by Lambo nut:

A small screwdriver can work for the pressed on washer but I have had better luck with a couple of seal picks or dental picks. Trick is to press up on the inner fingers only going around in a circle. If you just try to pry on the outer rim it will get tighter and break the washer or the post. Just go slow and take your time. If you do break the washer, new ones can usually be found at the parts or hardware store.



Thank you for the detailed description. It will surely be a great help.

-Van
VanGTP5000 FEB 06, 12:17 PM

quote
Originally posted by viperine:

The cable is held in place with a press-on washer that is quite a pain to remove. A small flathead screwdriver and patience is your friend. Try to "walk" the washer back up the post, little by little. It's spring steel and keeps itself tight with "fingers" all facing inward on the plastic post.



Boy you weren't kidding! This thing is on there really good!



Trying not to ruin it...

-Van
VanGTP5000 FEB 06, 12:30 PM

quote
Originally posted by Lambo nut:

A small screwdriver can work for the pressed on washer but I have had better luck with a couple of seal picks or dental picks. Trick is to press up on the inner fingers only going around in a circle. If you just try to pry on the outer rim it will get tighter and break the washer or the post. Just go slow and take your time. If you do break the washer, new ones can usually be found at the parts or hardware store.



Like this...

https://www.youtube.com/watch?v=-q0cVCgRYUs

-Van
VanGTP5000 FEB 06, 04:44 PM
Thanks again for the help...mission accomplished!

-Van