Dometic RUC compressor starts then stops or will not start
Use this when a Dometic RUC compressor starts briefly and cuts out, does not start, or voltage is present but cooling does not begin. Dometic points owners to battery voltage, recharging, shade, ambient heat, and service-only compressor diagnosis.
Owner-safe checklist
- Check only installed battery monitor or RV power-system readings; recharge the battery if voltage is low.
- Move the RV or van into shade if high ambient heat is the likely cause.
- Record voltage under load, ambient temperature, error indicator state, and whether the compressor starts then stops.
- Use qualified electrical or refrigeration service for conductor sizing, compressor circuit, or repeated start failure concerns.