Dometic refrigerator · 2 model lines
Dometic refrigerator: DC power not connected
“DC power not connected” appears for 2 model lines. The Dometic RM8 support page says DC power is not connected and points owners to the 12V connection, on-board battery, and fuse.
Check your model first. The same code can mean different things on different models. Find the model number on the appliance's data label, then use the matching row below.
What this message means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Dometic RM10.5 / RMS10.5 (operating manual and RM10 fault support pages) | The Dometic RM10 support page lists DC power not connected and advises connecting the refrigerator to DC or selecting a different energy type such as gas or AC. | Dometic RM10 Refrigerators Fault DC Power Not Connected Support |
| Dometic RM8xxx / RMS8xxx / RML8xxx / RMSL8xxx | The Dometic RM8 support page says DC power is not connected and points owners to the 12V connection, on-board battery, and fuse. | Dometic RM8 Refrigerators DC Power Not Connected Support |
What you can safely check
- Confirm the refrigerator is connected to normal RV 12 V DC supply from owner-visible controls or indicators.
- Use only front-panel controls to select a different energy type such as gas or AC if available and safe.
- Call qualified service if the fault repeats with normal DC supply available.
- Check owner-visible 12V power status and the selected energy mode.
- Record coach-battery state from normal owner controls or monitor panels.
- Record whether the condition appears while driving, parked, or connected to external power.
Stop and call a technician for
- Battery, converter, fuse, wiring, and refrigerator control diagnosis are service-only.
- DC supply diagnosis, D+ signal, wiring, fuses, heating elements, and refrigerator electronics diagnosis are service-only.
Do not service LP hardware, electrical circuits, wiring, or refrigerator controls; use only normal front-panel and owner-visible checks and call qualified service for repeated faults.
Do not service DC circuits, wiring, fuses, heating elements, or refrigerator controls; use only owner-visible power checks and call qualified service for repeated faults.
Write this down before you call
- Interior data label model, product number, serial number
- Front display code or lamp state photo
- Power module/display board part number if service requests it
- Coach battery and driving/parked state
Other codes on Dometic RM8 / RMS8 / RML8 refrigerators
Full table: Dometic RM8 / RMS8 / RML8 refrigerators
- 2 + 8 flashing + 20 s beep 230 V mode is not available or the voltage is too low
- 4 + 8 flashing + 20 s beep 12 V mode is not available or the voltage is too low; AES models also call out the D+ sig…
- 3 + 8 flashing + 20 s beep GAS or automatic mode did not ignite the flame
- 15 s beep every two minutes The interior lighting is switched on
- 2 + 7 flashing + 20 s beep The 230 V heating element is defective
- 4 + 7 flashing + 20 s beep The 12 V heating element is defective
- 7 flashing The temperature sensor has no contact or is defective
- 3 + 7 flashing + 20 s beep The burner or cooling unit is defective
- 3 + 8 flashing brightly During internal-battery operation, the flame was not ignited
- 3 + 7 flashing brightly During internal-battery operation, the burner or cooling unit is defective
- internal battery 15 s beep An acoustic signal at 15-second intervals indicates undervoltage detection in the interna…
- external-to-internal power switching failure External-to-internal power switching failure as: Automatic switching from external to int…
- Ground contact, gas valve Ground contact at the gas valve and says to replace the internal batteries that power the…
- Tank stop mode: gas operation blocked 15 minutes Tank stop mode blocks gas operation for 15 minutes.
- Recurring beep A recurring beep can be caused by the refrigerator door not being completely closed or be…
- Undervoltage detection (internal batteries) Undervoltage detection in the internal batteries means the batteries that power the elect…
- Gas operation despite mains supply voltage The refrigerator switches to gas operation when mains supply voltage is too low and will …
- Flame not ignited in GAS/Automatic mode Flame not ignited in GAS or automatic mode can be reset from the front controls and tried…
- AC power not connected or AC voltage < 190 V AC power may not be connected or AC voltage is below the operating threshold; below about…
- 230V not available or voltage too low 230V is not available or voltage is too low; below about 195V the refrigerator stops work…
- 12V not available or voltage too low 12V is not available or voltage is too low and points owners to the 12V connection, on-bo…
- Refrigerator does not function; gas operation not possible although batteries are inserted The on-board power supply was interrupted while gas operation was starting; no automatic …
- Flame not ignited in internal power mode Flame not ignited in internal power mode can be reset from the front controls and tried a…
- 230V heating element defective A 230V heating element defective fault can only be repaired by an authorized service prov…
- 12V heating element defective A 12V heating element defective fault can only be repaired by an authorized service provi…
- Flashing + acoustic signal 20 s A flashing display with a 20-second acoustic signal can only be repaired by an authorized…
- Interior lighting is switched on The interior-lighting fault can be caused by the refrigerator door not being completely c…
Other codes on Dometic RM10 / RMS10.5 refrigerators
Full table: Dometic RM10 / RMS10.5 refrigerators
- Petrol pump symbol Tank stop mode, where gas operation is blocked for 15 minutes
- 01 A temperature sensor that is without contact or defective; Dometic says this can only be …
- 02 Display fault 02 and directs repair to an authorized service provider without giving an o…
- 03 Display fault 03 and directs repair to an authorized service provider without giving an o…
- 05 Which operation mode is selected for display fault 05: gas, 12 V DC from a battery, or 23…
- 06 Display fault 06 and advises connecting the refrigerator to DC or selecting a different e…
- 07 Display fault 07 and says to level the refrigerator, then press the control knob for 2 se…
- 08 Display fault 08 and says to level the refrigerator, then press the control knob for 2 se…
- 09 Display fault 09 and says to level the refrigerator, then press the control knob for 2 se…
- 10 Display fault 10 and says to make sure the refrigerator door is completely closed, includ…
- 11 Display fault 11 and says to reduce the DC supply voltage.
- 12 Display fault 12 and says to press the control knob for 2 seconds to reset the error.
- 13 Display fault 13 and says to press the control knob for 2 seconds to reset the error.
- 14 Display fault 14 and says to insert new batteries, then press the control knob for 2 seco…
- 50 Display fault 50 and says to replace an empty gas cylinder, press the control knob for 2 …
- 51 Display fault 51 and says to press the control knob for 2 seconds to reset the error.
- 52 Display fault 52 and says to press the control knob for 2 seconds to reset the error.
- 53 Display fault 53 and says to press the control knob for 2 seconds to reset the error.
- AC power not connected or AC voltage < 190 V AC power not connected or AC voltage below 190 V and asks which operating mode is selected
- Beep: door opened more than 2 minutes A beep fault when the door has been opened for more than 2 minutes and says to make sure …
- DC overvoltage > 16 V DC overvoltage above 16 V and says to reduce the DC supply voltage.
- Defective temperature sensor in refrigerator compartment This fault means the temperature sensor is without contact or defective and can only be r…
- Gas lock out after 3 ignition attempts Gas lock out after 3 ignition attempts and asks whether the refrigerator is controlled by…
- Gas lock out, internal error in power module Gas lock out caused by an internal power-module error and asks which controller is instal…
- Gas valve check error A gas valve check error and asks whether the refrigerator is controlled by LED touch cont…
- Ground contact, gas valve Ground contact at the gas valve and asks which controller is installed.
- Ground contact, ignition electrode Ground contact at the ignition electrode and asks which controller is installed.
- Stand-alone gas mode battery packs too low Stand-alone gas mode with battery-pack charge too low and asks which controller is instal…
- Internal communication error An internal communication error and asks which controller is installed.
- No connection between power module and display No connection between the power module and display can only be repaired by an authorized …
- No cooling capacity in gas mode No cooling capacity in gas mode and asks which controller is installed.
- No cooling power in AC mode No cooling power in AC mode and asks which controller is installed.
- No cooling power in DC mode No cooling power in DC mode and asks which controller is installed.
- Tank stop mode: gas operation blocked 15 minutes Tank stop mode where gas operation is blocked for 15 minutes and says to wait 15 minutes …
- W01 Defective temperature sensor in the refrigerator compartment
- W05 AC power is not connected or AC voltage is below the manual threshold
- W06 DC power is not connected
- W11 DC overvoltage is present
- Beep Tank stop mode is active and gas operation is blocked for 15 minutes
- W10 + beep The door has been open for more than two minutes
- E03 There is no connection between power module and display
- E07 There is no cooling capacity in gas mode
- E08 There is no cooling power in AC mode
- E09 There is no cooling power in DC mode
- E12 Gas valve test error; gas operation is not possible
- E13 Internal communication error; gas operation is not possible
- E14 In stand-alone gas mode, the battery pack charge is too low
- E50 Gas lock after three ignition attempts; ignition is not possible
- E51 Gas lock caused by an internal power-module error
- E52 Ground contact at the gas valve is detected
- E53 Ground contact at the ignition electrode is detected