Small effort....GREAT pay-off-Duo Therm Control

[Rook]

I've been putting this off....but finally decided to do it. Do what? Well, remove my Duo Therm Heat and AC control and clean it. Why clean it. Remember this is a 13 year old coach.

Initially, the problem was it was very intermittent. I could push the change Mode buttons and it would flicker, cycle through several positions and stop at random on some position....usually not the one that I wanted! If I pushed several times I would eventually get it to stop on the position I wanted. I did a "reset" from the manual and it improved the performance, but not for very long. Finally, I removed it from the wall. Used a small tool to pry the tab on the bottom a bit and snap it open. Unpluged the phone cord, use a cloths-pin on the cord to keep it from disappearing into the wall. 4 screws remove the small circuit boad and you have ready access to the 4 push-button switches. I used a spray can of electronic switch cleaner with with the little red tube to spray each of the switches and the phone connection, operating the switches several times and repeatedly spraying each of them. Put it back together, plug it in on the wal and .....wallah, worked perfect....solid as a rock! Time well spent. Rook