We were enjoying the hot weather here in Ohio knowing we had a frosty camper to get into Saturday night. Much to our chagrin, the AC quite during the afternoon.
We were hovering around 90 so I decided to go into commando mode for a fix.
Here's what i know:
- AC vent cover in the trailer was dripping wet from either a leak on the seal (Which i already had replaced last year) or from heavy condensation from lack of air movement on slightly closed vent.
- no power to Dometic digital thermostat
- all breakers and fuses are intact..no problems there
- metal junction box/connections/circuit board were damp.
After pulling the cover off the electrical box on the ceiling I found..a circuit board installed directly under the AC intake...brilliant engineering.not
Put it back together to deal with when we got home...Than Sunday came and was even hotter. I figured I'd give it another shot and look deeper into the problem...
Further inspected the board connections and found the board in the picture below.
Yep, the 12v connection in the connector arc'd and burnt one of the connections in the female side of the thermostat connection.
So there I sat in my trailer ...hovering around 88 degrees by breakfast..and I remembered, i bought the 50 amp trailer ..capable of the second AC install.
I simply moved the male thermo connection to the OTHER thermo input, and we got AC! Turns out the pins on the connector had some carbon build up but the receiver connections were completely burnt away..like a fuse connection..
Ordered another board off ebay for 55 bucks...not worth submitting to extended warranty.
Before I install and run the risk of shorting out another board, anyone got advice? Do I need to just keep the main celing vent open all the time to prevent condensation during hotter weather or maybe have another leak? Can the drain pan get blocked?