Heater test

To test the operation of the ventilation unit heaters:

  1. Select Settings.
  2. Use the Arrow buttons to select Service menu.
  3. Select OK.
  4. Use the Arrow buttons to select Heater test:
  5. Select OK.
    The Heater test 1/2 display opens:
  6. Use the Up arrow button to enable post-heating.
  7. Make sure that the post-heating is working.
  8. Use the Down arrow button to disable post-heating.
  9. Select Right arrow.
    The Heater test display 2/2 opens:
  10. Use the Up arrow button to turn on the additional heating resistor.
  11. Ensure that the additional heating resistor is working.
  12. Use the Down arrow button to turn off the additional heating resistor.
  13. Select Back.
The heater test is now complete.