Dometic Brisk II / Penguin II fault codes
The 4 fault codes below are the ones that apply to this Dometic air conditioner family. The other 12 Dometic air conditioner codes in our database belong to different model families — they are listed further down so you do not troubleshoot against the wrong table.
Covered model numbers
Brisk IIPenguin II
Not on the list? Check the rating label before you troubleshoot — the code table below will not apply. Where to find it →
Fault codes on the Dometic Brisk II / Penguin II
The CCC2 thermostat reads an open circuit on the optional humidity sensor (only fitted on … E7 warning
The CCC2 has lost 120 VAC line power to all of the air conditioner power module boards, so… E8 warning
Invalid zone configuration: the heat pump and electric heat strip DIP switches are both se… E9 warning
Invalid zone configuration: the dehumidifier DIP switch and either the heat pump or heat s…
Codes that do not apply to this model
These 12 codes exist on other Dometic air conditioners. If your unit is showing one of them, it is not from this family — re-check the model number on the label before acting on any of these.
Electronics and drive faults on the FreshJet inverter board. E0 = communication failure be… E1
The thermostat has lost its communication link with the air conditioner/heat pump control … E2
The indoor (return-air) temperature sensor is reading open-circuit or out of range. The sy… E3
The indoor (return-air) temperature sensor is reading as shorted. As with E2, all heating … E4
The outdoor temperature sensor (fitted on select heat-pump models) is reading open-circuit… E5
The freeze sensor is reading open-circuit or out of range (documented on the Single Zone L… EL
LIN-BUS / CI-BUS communication failure. The air conditioner has lost the data-bus link it … P0
The inverter control module (IPM) has detected an over-temperature or over-current conditi… P1
Under-voltage protection. The unit has detected the incoming supply voltage is too low to … P2 / P3
P2 is AC over-current protection (the unit is drawing more current than allowed). P3 is ov… P4 / P5 / P6 / P7
Refrigerant-circuit temperature protections. P4 = discharge tube (compressor outlet) overh… P9
Compressor drive abnormal, or the compressor fails to start. The inverter drive cannot bri…
Where the model number is
On the rooftop unit under the outer shroud, and usually repeated on a sticker inside the interior ceiling assembly after removing the filter cover.
Sources
- Comfort Control Center 2 Thermostat User's Guide — Dometic LLC (hosted by My RV Works) (Form No. 3314150.016, LCD Error Code section, E9)
- Dometic Comfort Control Center 2 Users Guide — thermostat.guide (Error code table, E9)
- Getting An E7 Code on Your Dometic Thermostat? What It Means & How to Fix It! — The RV Geeks (E7 meaning and troubleshooting steps)
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