Dometic Fridge “E-3” code

[Dometic Fridge “E-3” code]

I have spoken to Dometic support. They were the ones who suggested the limit switches and power supply to be replaced. The fridge is installed in the slide. Has worked fine for most of 8 years. Cooling unit was replaced approx 2 ago and worked fine till about 4 weeks ago. Been dealing with it since then.😡  

[Dometic Fridge “E-3” code]

High temp in cooling unit

[Dometic Fridge “E-3” code]

My Dometic Refrigerator in my 2011 Coachman Pathfinder keeps shutting off and showing an E-3 code. A repairman has changed the limit switch on the fans, the lower heater and also changed the power supply. However problem keeps occurring.