Dometic RV fault codes
Dometic builds a large share of RV refrigerators, air conditioners, awnings and thermostats. Codes appear on the appliance display, the thermostat, or as fault indicators on the control board.
Air Conditioner
E0 / EA / EE
Electronics and drive faults on the FreshJet inverter bo… E1
The thermostat has lost its communication link with the … E2
The indoor (return-air) temperature sensor is reading op… E3
The indoor (return-air) temperature sensor is reading as… E4
The outdoor temperature sensor (fitted on select heat-pu… E5
The freeze sensor is reading open-circuit or out of rang… E6
The CCC2 thermostat reads an open circuit on the optiona… E7
The CCC2 has lost 120 VAC line power to all of the air c… E8
Invalid zone configuration: the heat pump and electric h… E9
Invalid zone configuration: the dehumidifier DIP switch … EL
LIN-BUS / CI-BUS communication failure. The air conditio… P0
The inverter control module (IPM) has detected an over-t… P1
Under-voltage protection. The unit has detected the inco… P2 / P3
P2 is AC over-current protection (the unit is drawing mo… P4 / P5 / P6 / P7
Refrigerant-circuit temperature protections. P4 = discha… P9
Compressor drive abnormal, or the compressor fails to st…
Electronics and drive faults on the FreshJet inverter bo… E1
The thermostat has lost its communication link with the … E2
The indoor (return-air) temperature sensor is reading op… E3
The indoor (return-air) temperature sensor is reading as… E4
The outdoor temperature sensor (fitted on select heat-pu… E5
The freeze sensor is reading open-circuit or out of rang… E6
The CCC2 thermostat reads an open circuit on the optiona… E7
The CCC2 has lost 120 VAC line power to all of the air c… E8
Invalid zone configuration: the heat pump and electric h… E9
Invalid zone configuration: the dehumidifier DIP switch … EL
LIN-BUS / CI-BUS communication failure. The air conditio… P0
The inverter control module (IPM) has detected an over-t… P1
Under-voltage protection. The unit has detected the inco… P2 / P3
P2 is AC over-current protection (the unit is drawing mo… P4 / P5 / P6 / P7
Refrigerant-circuit temperature protections. P4 = discha… P9
Compressor drive abnormal, or the compressor fails to st…
Awning
Portable Cooler
E31 (low voltage alert)
The cooler stopped running on 12/24V DC because the inco… Warning 01 / 02 (NTC sensor)
The cooler's temperature sensor (an NTC thermistor) read… Warning 03 / 43 (communication)
An internal communication fault between the cooler's ele… Warning 11 / 12 (NTC sensor)
Same kind of temperature-sensor fault as Warning 01/02, … Warning 32 (fan overcurrent)
The cooling fan is drawing more current than allowed, wh… Warning 33 (compressor start)
The cooler's controller tried to start the compressor bu… Warning 34 (compressor speed)
The compressor is running but cannot reach or hold its t… Warning 35 (overtemperature)
The temperature of the cooler's electronic controller ha…
The cooler stopped running on 12/24V DC because the inco… Warning 01 / 02 (NTC sensor)
The cooler's temperature sensor (an NTC thermistor) read… Warning 03 / 43 (communication)
An internal communication fault between the cooler's ele… Warning 11 / 12 (NTC sensor)
Same kind of temperature-sensor fault as Warning 01/02, … Warning 32 (fan overcurrent)
The cooling fan is drawing more current than allowed, wh… Warning 33 (compressor start)
The cooler's controller tried to start the compressor bu… Warning 34 (compressor speed)
The compressor is running but cannot reach or hold its t… Warning 35 (overtemperature)
The temperature of the cooler's electronic controller ha…
Refrigerator
Start here Dometic RV fridge blinking light: what the flash count means When the indicator light on a Dometic compressor fridge flashes, the fridge is naming the fault it detected. The number of flashes is the message. 1 red LED flash
Battery-protection cut-out. The supply voltage measured … 2 red LED flashes
Two flashes covers two different faults, and Dometic's o… 3 red LED flashes
The compressor motor will not start. Dometic gives two c… 4 red LED flashes
Compressor speed too low. The motor did start, but could… 05 / W05
AC (230 V mains) power problem: the fridge is set to run… 5 red LED flashes
Overheating of the electronics unit. The compressor's co… 06 / W06
DC (12 V) power problem: the fridge expects a 12 V suppl… 10 / W11 (door open)
Door-open warning: the refrigerator door has been left o… 50 / 51 / 52 (gas lock)
Gas (LP/propane) operation fault. On RUA models, codes 5… CALL / Check
On 'Er'-code Dometic absorption fridges, a component fai… Constant red LED
Temperature sensor error. The fridge's temperature senso… E03
The display/control panel has lost communication with th… E07
The fridge is not producing cooling while running on gas… E08
The fridge is not producing cooling while running on AC … E09
The fridge is not producing cooling while running on DC … E12
The control electronics ran a self-test on the gas valve… E50
Gas ignition lockout: the burner failed to light after t… Er 11
The control board has detected an open circuit in the fr… Er 14
The control board has detected an open circuit to the fa… W01
The temperature sensor inside the fridge compartment is … W10
Either the DC supply voltage is too high (over about 16 …
Battery-protection cut-out. The supply voltage measured … 2 red LED flashes
Two flashes covers two different faults, and Dometic's o… 3 red LED flashes
The compressor motor will not start. Dometic gives two c… 4 red LED flashes
Compressor speed too low. The motor did start, but could… 05 / W05
AC (230 V mains) power problem: the fridge is set to run… 5 red LED flashes
Overheating of the electronics unit. The compressor's co… 06 / W06
DC (12 V) power problem: the fridge expects a 12 V suppl… 10 / W11 (door open)
Door-open warning: the refrigerator door has been left o… 50 / 51 / 52 (gas lock)
Gas (LP/propane) operation fault. On RUA models, codes 5… CALL / Check
On 'Er'-code Dometic absorption fridges, a component fai… Constant red LED
Temperature sensor error. The fridge's temperature senso… E03
The display/control panel has lost communication with th… E07
The fridge is not producing cooling while running on gas… E08
The fridge is not producing cooling while running on AC … E09
The fridge is not producing cooling while running on DC … E12
The control electronics ran a self-test on the gas valve… E50
Gas ignition lockout: the burner failed to light after t… Er 11
The control board has detected an open circuit in the fr… Er 14
The control board has detected an open circuit to the fa… W01
The temperature sensor inside the fridge compartment is … W10
Either the DC supply voltage is too high (over about 16 …
Toilet
Cassette tank 3/4 full
On the Saneo control panel, the 'cassette tank 3/4 full'… Cassette tank full
On the Saneo control panel, the 'cassette tank full' dis… Flashing green Power light
On the Dometic flush switch / MasterFlush status panel t… Red Full Tank light
On the Dometic flush switch / MasterFlush status panel, …
On the Saneo control panel, the 'cassette tank 3/4 full'… Cassette tank full
On the Saneo control panel, the 'cassette tank full' dis… Flashing green Power light
On the Dometic flush switch / MasterFlush status panel t… Red Full Tank light
On the Dometic flush switch / MasterFlush status panel, …