Troubleshooting guide
Dometic Bluetooth CT mobile-device pairing
Dometic Bluetooth CT instructions say pairing should be done within 3 feet of the thermostat, with the Bluetooth icon blinking slowly, OFF mode selected for the 2-digit PIN, and the PIN entered twice within 15 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
- Stand within 3 feet of the CT thermostat and let the backlight go dark before pairing.
- If the Bluetooth icon is not visible, press any thermostat button once to wake the Bluetooth radio and wait for the slow blink.
- In the Dometic Climate Control App, choose Add New Connection and select the CT thermostat whose backlight illuminates.
- Use OFF mode to display the 2-digit PIN, then enter that PIN twice in the app within 15 seconds.
- Call qualified RV HVAC service if the thermostat never appears or the backlight never confirms the selected thermostat.