Dometic RV refrigerator fault codes
RV fridges (absorption or 12V compressor) throw codes when they lose cooling, fail to ignite on gas, or detect a sensor/power fault.
How to read the code
Most RV refrigerator codes appear directly on the temperature display. Note the exact text or number before resetting, since clearing the fault can erase it.
All documented codes
1 red LED flash warning
Voltage fault. The DC supply voltage reaching the fridge is outside the range the electron… 2 red LED flashes warning
Excessive fan current. The condenser/cooling fan is drawing more than 1 ampere, which the … 3 red LED flashes warning
The motor (compressor) does not start. The electronics tried to start the compressor but i… 4 red LED flashes warning
Compressor speed too low. The cooling system is so heavily loaded that the compressor moto… 05 / W05 warning
AC (230 V mains) power problem: the fridge is set to run on AC but either no AC is connect… 5 red LED flashes warning
Overheating of the electronics unit. The compressor's control electronics have gotten too … 06 / W06 warning
DC (12 V) power problem: the fridge expects a 12 V supply but none is connected (or it is … 10 / W11 (door open) info
Door-open warning: the refrigerator door has been left open (typically longer than ~2 minu… 50 / 51 / 52 (gas lock) danger
Gas (LP/propane) operation fault. On RUA models, codes 50/51/52 indicate the fridge has 'g… CALL / Check warning
On 'Er'-code Dometic absorption fridges, a component failure makes the panel flash 'CALL' … Constant red LED warning
Temperature sensor error. The fridge's temperature sensor is reading as defective (open or… E03 danger
The display/control panel has lost communication with the power module (electronics board)… E07 warning
The fridge is not producing cooling while running on gas (LP). The cooling unit is not gen… E08 warning
The fridge is not producing cooling while running on AC (230 V/120 V mains) power; the AC … E09 warning
The fridge is not producing cooling while running on DC (12 V) power; DC mode is active bu… E12 danger
The control electronics ran a self-test on the gas valve and the test failed, so gas opera… E50 danger
Gas ignition lockout: the burner failed to light after three automatic ignition attempts, … Er 11 warning
The control board has detected an open circuit in the freezer-plate defrost heater. In oth… Er 14 warning
The control board has detected an open circuit to the fan in the freezer compartment — it … W01 warning
The temperature sensor inside the fridge compartment is faulty (open, shorted, or reading … W10 warning
Either the DC supply voltage is too high (over about 16 V), or the unit has entered 'tank …
Voltage fault. The DC supply voltage reaching the fridge is outside the range the electron… 2 red LED flashes warning
Excessive fan current. The condenser/cooling fan is drawing more than 1 ampere, which the … 3 red LED flashes warning
The motor (compressor) does not start. The electronics tried to start the compressor but i… 4 red LED flashes warning
Compressor speed too low. The cooling system is so heavily loaded that the compressor moto… 05 / W05 warning
AC (230 V mains) power problem: the fridge is set to run on AC but either no AC is connect… 5 red LED flashes warning
Overheating of the electronics unit. The compressor's control electronics have gotten too … 06 / W06 warning
DC (12 V) power problem: the fridge expects a 12 V supply but none is connected (or it is … 10 / W11 (door open) info
Door-open warning: the refrigerator door has been left open (typically longer than ~2 minu… 50 / 51 / 52 (gas lock) danger
Gas (LP/propane) operation fault. On RUA models, codes 50/51/52 indicate the fridge has 'g… CALL / Check warning
On 'Er'-code Dometic absorption fridges, a component failure makes the panel flash 'CALL' … Constant red LED warning
Temperature sensor error. The fridge's temperature sensor is reading as defective (open or… E03 danger
The display/control panel has lost communication with the power module (electronics board)… E07 warning
The fridge is not producing cooling while running on gas (LP). The cooling unit is not gen… E08 warning
The fridge is not producing cooling while running on AC (230 V/120 V mains) power; the AC … E09 warning
The fridge is not producing cooling while running on DC (12 V) power; DC mode is active bu… E12 danger
The control electronics ran a self-test on the gas valve and the test failed, so gas opera… E50 danger
Gas ignition lockout: the burner failed to light after three automatic ignition attempts, … Er 11 warning
The control board has detected an open circuit in the freezer-plate defrost heater. In oth… Er 14 warning
The control board has detected an open circuit to the fan in the freezer compartment — it … W01 warning
The temperature sensor inside the fridge compartment is faulty (open, shorted, or reading … W10 warning
Either the DC supply voltage is too high (over about 16 V), or the unit has entered 'tank …