Troubleshooting guide

Dometic RUC does not cool with power present

Use this when a Dometic RUC has power present but does not cool, or an error indicator appears. Dometic allows the encoder reset where listed and directs power-present/no-cooling repair to authorized service.

Use this atlas to identify likely meaning and prepare for service. Shut off power, LP gas, fuel, or water when a listed appliance condition involves flame, gas smell, exhaust, generator shutdown, high temperature, moving jacks/slides, refrigerant, 120 VAC, control boards, repeated ignition failure, or a persistent lockout. Call the appliance maker, RV dealer, or a qualified RV technician for repair.

Owner-safe checklist

  • Move food if refrigerator temperature is unsafe.
  • If the error-indicator page applies, hold the encoder button for the documented reset and record whether the indicator returns.
  • If the display is lit and the refrigerator still does not cool, stop at documentation and use authorized service.

Code tables for these appliances

Official sources