Using a Dometic AC/heat punp unit installed in 2014 (sorry I don't have the model number with me). AC runs for awhile, then stops, then re-starts withing a few seconds, with a different fan speed. Conditions are very warm (95+degrees). When I set the thermostat higher; i.e., 81/82, it seems to work properly; when I set the thermostat lower; i.e., 78, it runs/stops/runs/stops. Is there something wrong with the AC unit, or the thermostat? Thanks.
Dometic AC issue
- Thread starter ajvanste
- Start date
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Ghostman
Well-known member
Do you have a EMS system. If so it may be kicking off and on not the AC having problem. Just a thought for starters.
Ghostman
Well-known member
Not sure what type RV you have. EMS is a electrical Management system. It monitors the electrical voltage and connection. If your voltage should drop to low it will kick out. As I said not sure you have one. It is either wired into RV.or you plug it into pedstal and then your RV into it.
zulu
Well-known member
One of my 2012 Dometic Penguin II AC/Heatpump units started doing something similar. While the AC fan kept running, the AC would cycle on and off at very regular intervals. First, 10 minutes on, 3 minutes off, over and over, but after a week or so it was 3 on/3 off with very little cooling going on.
I ended up replacing it.
I ended up replacing it.
