Flue Passage Check - Winterwarm DXE80 Installation Manual

If the heat exchanger becomes too hot, this sensor will
cause the heating process to stop. Depending on the
temperature, the air heater performs the following actions:
• Step 1: Power reduction (when possible).
• Step 2: Burner stop, followed by an automatic
restart when cooled down (display: E05 / E36).
• Step 3: Burner stop, followed by a Lock Out. A
manual reset is required. (display L15).
NOTICE A manual reset can be done on the electronic
circuit board or remotely with the special room thermostat.

6.6. Flue passage check

The air heater is equipped with a pressure switch that
checks the passage of combustion air through the heat
exchanger. The pressure switch checks if there is sufficient
movement of combustion air through the heat exchanger.
If the pressure difference is too low, the air heater will stop.
Error L-14 will be shown on the display.
INSTALLATION MANUAL AIR HEATER TYPE DXE 13