pspc271 wrote:
It's a dometic 12.5 ton AC with a dometic digital thermostat. The camper has 2 air conditioners each with a separate tstat. the front AC is a 15 the back which is acting up is the 12.5. Actually they were both doing the same thing at first. I opened up the front one and it seemed like the foam that was supposed to separate the cold air from the return wasn't wasn't sealed off. After I sealed it off better that unit has functioned properly. I did the same on the rear ac unit but it didn't change anything.
They don't make a 12.5 TON unit. If they did, your roof would collapse:B They make a 13.5k and a 15k. You need to verify that the Freeze Thermister is indeed installed in the coils and the cold air output is not hitting the wall tstat. Doug