thermistor

[vacationer]

I just replaced my thermistor in my 2019 374 hc. Got it down to 35 on the weekend and now I checked yesterday and it was back up to 53. Could it be the extreme heat inside the trailer that brought the temp back up. All the windows and vents are closed and it was about 95 inside it felt like. Not using the trailer right at this moment but I leave it plugged in.

[Creeker]

Heat certainly plays a role and it could have been in or just coming out of its defrost mode. As has been said here many times before; adding exterior fans to move more air through the outside fins and out the upper vent will help tremendously.