Heater test

To test the operation of the ventilation unit heaters:

  1. Select Service menu.
  2. Activate the test mode by pressing the On/Off button in the right top corner of the Test mode area until the value is On:
  3. To test the operation of the heaters in the Post-heating resistor area:
  4. Turn the post-heating On. Make sure the post-heating function is working.
  5. Turn the additional heating resistor On. Make sure the additional heating resistor is working.