Troubleshooting guide
Dometic CCC2 filter icon clean and reset
Dometic CCC2 operating instructions say the filter icon appears after 1000 fan hours, the air conditioner or heat-pump filters should be cleaned or replaced, and the selected zone runtime is cleared by holding INSIDE TEMP and F/C for 3 seconds.
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
- Turn the affected zone off from normal thermostat controls before handling owner-accessible filters.
- Clean or replace only owner-accessible air conditioner or heat-pump filters as the RV installation allows.
- Wash reusable filters with soap and warm water, let them dry, and reinstall them before operating the system.
- For the selected zone, hold INSIDE TEMP and F/C for 3 seconds to clear the filter icon after filter service.