Community Forums

vito.a · 11-08-2020, 10:09 PM

I replaced two of three heat pumps.
The problem is the A/C version must match the thermostat version.
If you install new model A/C units, then you either need to install a new Comfort Control 2 (CC2) thermostat, or purchase retrofit control boards.

However the new CC2 thermostat will not work with older model A/C units. If you want to use the new CC2 thermostat you need to replace all three A/C units simultaneously with the new version.
They make a retrofit control board so the new A/C can work with the older Dometic 5 button thermostat, but the reverse is not doable. The new CC2 thermostat will not function with older A/C units.

vito.a · 11-09-2020, 09:47 AM

I would call PPL RV parts and ask when they have some new A/C's coming in. They are one of the largest Dometic dealers.
https://www.pplmotorhomes.com/parts/...ir-conditioner
800-755-4775

Captjarhead · 12-13-2020, 02:18 PM

Alight guys and gals a little update. Got all the A/Cs replaced and finished a few other simple task. Got a tricky one for me. When i was starting my gen it would run fine for a bit then shut down about a minute later it would start back up for just a couple minutes. Don't ask me why I did this but I unplugged the harness just to the left facing the generator and fired it up. Everything worked perfect except I had to start and stop from outside. Any ideas what is up?

153stars · 12-13-2020, 03:05 PM

I'm not sure if there is a second plug in harness also but its a known issue of a plug getting dirty and or wet causing issues. Even a couple genny starting on its own going down the road due to plug. The wires are pretty thin ,I think the go right to a PCB so would take much to show/ look like a closed to a switch. Could be one of the stop switches as well. Do you have auto genny start panel ? Did it repeat it after plugging it back in. ? Clean plugs try again to see if it's repeatable and not just a fluke.

JJTL · 12-13-2020, 04:04 PM

Sounds like you did get it running. Usually first thing to check when generator cuts out is the fuel level in the main tank. The pickup for the generator is at the 1/4 tank level, so if you get below that the generator will stall out. The idea being that you can’t run your tank dry and not be able to start the main engine.

Cleaning plugs and connections is always a great first step to take.

Josh

Outbound · 12-13-2020, 04:35 PM

Congrats on your new purchase, you picked a great coach and very hard to find with only 12,500 miles, should give you years of great service, wonder if at one time it was a live aboard since front film is showing age and a/c may need work.

Kurt Averill · 12-13-2020, 06:25 PM

Quote:

Originally Posted by Captjarhead

Alight guys and gals a little update. Got all the A/Cs replaced and finished a few other simple task. Got a tricky one for me. When i was starting my gen it would run fine for a bit then shut down about a minute later it would start back up for just a couple minutes. Don't ask me why I did this but I unplugged the harness just to the left facing the generator and fired it up. Everything worked perfect except I had to start and stop from outside. Any ideas what is up?

Auto start /stop settings in the inverter?

Timaz · 12-17-2020, 01:48 PM

Quote:

Originally Posted by Kurt Averill

Auto start /stop settings in the inverter?

This was my thought also. Look at your inverter/charger control to see if auto start/stop is turned on. If it is, turn it off. Your inverter manual will tell you how.
This happened to me.

Tim