Dometic furnace · 1 model line
Dometic furnace: 4 flashes
Dometic documentation lists “4 flashes” as “High voltage 16 V-17 V”.
What this message means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Dometic DFSA / DFSD / DFMD / DFLD / DFLA furnaces | The Dometic DF furnace manual lists 4 flashes with a 3-second pause as high voltage 16 V-17 V. | Dometic DF Series Furnace Installation Manual |
What you can safely check
- Turn the furnace off.
- Check the RV battery or charger state only at normal user monitors.
Stop and call a technician for
- Furnace voltage, wiring, converter, and board diagnosis is qualified RV electrical service work.
RV furnaces burn LP gas and can create fire, explosion, electrical, burn, and carbon monoxide hazards. Shut the furnace off and do not service burner, board, wiring, gas, or combustion parts unless qualified.
Write this down before you call
- furnace model
- thermostat setting
- LED flash count
- lockout state
Other codes on Dometic DF and Hydro Flame AFM furnaces
Full table: Dometic DF and Hydro Flame AFM furnaces