I installed the MicroAir Easy Touch thermostat in my motorhome back in August and really like it.
We replaced the bedroom A/C unit (under warranty) in October and on our first camping trip since we've had a problem with the bedroom A/C cycling off almost immediately once the compressor starts.
This leads me to believe it's a problem with the install or the brand new A/C unit itself. HOWEVER, there is an anomaly with the thermostat during this cycle and leads to questions about the thermostat.
Here's the issue: I turn on the bedroom A/C with the Easy Touch thermostat and the fan starts right up. In 3 or so minutes the A/C compressor starts up and it begins to run. Then everything shuts down, fan and compressor within perhaps 15 seconds.
After a minute or so the fan starts back up and then another 3+ mins or so the compressor kicks in and the same thing happens again when everything stops after about 15 sec of compressor running.
OK, that sounds like a problem with the new A/C unit... right? But, I've found that during this process the thermostat goes from thinking the bedroom is warm enough for the A/C to run as set - but then the thermostat changes it's reading of the inside temp by 40 degrees or more. For example, if the temp in the room is 85 and the thermostat is set for 72 the A/C turns on. But when this on/off cycle happens the thermostat shows the inside temp at 47 degrees.
I shot a video of the process that shows this temp change on the thermostat. I started the video with the fan running and the compressor just starting. You'll see the inside temp in the upper left hand corner is about 87 degrees. Then the compressor and fan shut down and the thermostat shows in the inside temp to be in the 40's. A few moments later the inside temp returns to the 80's and the fan starts up again.
So, is it the A/C unit, the installation wiring, or the thermostat? Obviously, if the thermostat is reporting a temp in the 40s it's going to shut down the A/C completely.
I have an appointment to have this checked out by the installing repair shop in about 10-days. So, I'm asking here and I'll ask on Easy Touch support before that appointment date arrives.