Dometic cooler error codes
12V compressor coolers/fridges (e.g. Dometic CFX) show alerts and warning numbers for low voltage and compressor/sensor faults.
Dometic
E31 (low voltage alert)
The cooler stopped running on 12/24V DC because the incoming supply voltage drop… Warning 01 / 02 (NTC sensor)
The cooler's temperature sensor (an NTC thermistor) reads as an open circuit (01… Warning 03 / 43 (communication)
An internal communication fault between the cooler's electronic components (for … Warning 11 / 12 (NTC sensor)
Same kind of temperature-sensor fault as Warning 01/02, but for the small zone o… Warning 32 (fan overcurrent)
The cooling fan is drawing more current than allowed, which the controller treat… Warning 33 (compressor start)
The cooler's controller tried to start the compressor but it did not start, so t… Warning 34 (compressor speed)
The compressor is running but cannot reach or hold its target speed, so the cont… Warning 35 (overtemperature)
The temperature of the cooler's electronic controller has risen too high, so it …
The cooler stopped running on 12/24V DC because the incoming supply voltage drop… Warning 01 / 02 (NTC sensor)
The cooler's temperature sensor (an NTC thermistor) reads as an open circuit (01… Warning 03 / 43 (communication)
An internal communication fault between the cooler's electronic components (for … Warning 11 / 12 (NTC sensor)
Same kind of temperature-sensor fault as Warning 01/02, but for the small zone o… Warning 32 (fan overcurrent)
The cooling fan is drawing more current than allowed, which the controller treat… Warning 33 (compressor start)
The cooler's controller tried to start the compressor but it did not start, so t… Warning 34 (compressor speed)
The compressor is running but cannot reach or hold its target speed, so the cont… Warning 35 (overtemperature)
The temperature of the cooler's electronic controller has risen too high, so it …