Clean the device according to the figure below:
A few tips for cleaning and maintaining the device:
Never use detergents containing chlorine for cleaning and disinfection.
Perform self-cleaning once a week:
Set room temperature to max. value.
Choose auto mode
Choose hot mode for air heating. for water heating.
If side cowl is positioned below a window: Check window switch operation as a pre trip or seasonal check.
Check regularly, especially after long journeys, that the cowl and the exhaust duct are intact and correctly fixed.
Operate the safety and drain valve regularly, at least twice a year, to remove limescale deposits and ensure proper function.
Have the device, its gas supply, and ducting for the products of combustion checked by an expert in accordance with national regulations (e.g., in Germany, every 2 years). If no national regulations exist, this should be done at least every 2 years. The inspection must be certified on a test certificate (e.g., DVGW Work Sheet G 607 for vehicles in Germany).