Coleman Comfort Thermostat Wrong Temperature

[bdg004]

Hello everyone. I am hoping for a bit of help here. I have a 2010 Jayco Eagle 321RLTS. It has two a/c units in it. One of them works perfectly.

The other, the thermostat is consistently reading too high. Seems like it reads as low as 74° and then stays there. I tested it with an external thermometer. It was 67° in the RV according to the external thermometer, but the thermostat read 74°. I attached a photo.

I'm assuming the temperature sensor is to fault here, but I have no idea where I would find it. Does anyone have any ideas? I appreciate any help anyone can provide.

[Grumpy]

Originally Posted by bdg004

I'm assuming the temperature sensor is to fault here, but I have no idea where I would find it.

The sensor is in the thermostat. Sounds like you need two new thermostats.

[bdg004]

Originally Posted by Grumpy

The sensor is in the thermostat. Sounds like you need two new thermostats.

Oh, these don't have remote sensors? I assumed they did. Thanks for the quick reply.

[RedHorse1]

Is it possible the hollow wall the where ‘stat is mounted is getting warm air from the basement or outside up the inner space?

[bdg004]

Originally Posted by RedHorse1

Is it possible the hollow wall the where ‘stat is mounted is getting warm air from the basement or outside up the inner space?

I think it's possible, but it seems like something that just started. It just won't go below 74°. It seems odd to me. When it hits 74° on the thermostat, it's much colder in the RV.