AC Won't Turn On - 2000 Monaco Diplomat Diesel Pusher

AC Won't Turn On - 2000 Monaco Diplomat Diesel Pusher

by Pat
(Utah)

We purchased a 2000 Monaco diplomat diesel pusher. We have not been able to get the air conditioning (unit on the roof) or the heater to turn on. When I read the manuals they are not any help as far as troubleshooting.

Per the instructions on the thermostat, we would push the mold button, it will come up as cool but the air does not come on, it states to push the mold button again and it should show up as heater which does not show up. The motorhome had been in storage for about 1 to 2 years before we got it.

We have checked the fuses on the inside of the motorhome which are okay. We have tried to get it to work at a campground with a 50 amp hookup as well as with the generator. I feel that we are missing a step but don’t know what it is. The thermostat is a Duo Thermo and the air conditioner is a Dometic.

Comments for AC Won't Turn On - 2000 Monaco Diplomat Diesel Pusher

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Jun 17, 2012
2000 Monaco
by: Anonymous

Don't know how handy you are, but I would get a 110 volt tester, and test to see if you are getting current to the unit itself and to the thermostat. If not, you may have a wiring problem, and if it was in storage, it happens.

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