How to change filters on our other models


Below you will find instructions for changing the air filter on your CE series heat pump.
It is important to change the air filter regularly, preferably 2-4 times a year. You will receive a signal or message on the display when it is time to change the filter.

  1. When you get a signal or message on the display that it is time to change the air filter, acknowledge the signal or turn off the alarm by pressing Enter.
  2. Before opening the heat pump, press the down arrow (Off) to turn off the fan and compressor.
  3. Remove the upper front cover by lifting it upwards-outwards.
  4. Loosen the three screws on the top right to open the filter cover.
  5. Fold the bottom edge of the filter upwards and pull it out.
  6. Insert a new filter with the firmer side down and make sure it is touching the plate.
  7. Screw the filter cover and put the front cover in place.
  8. Press the up arrow (On) and the fan will start again. After a delay of a few minutes, the compressor also starts.
  9. Exit by pressing Enter.


To ensure optimal operation of your heat pump, it is important to clean the air filter regularly.
How often this needs to be done depends on the amount of dust in the ventilation air and can differ from home to home. You should choose the cleaning interval that best suits your heat pump. By default, the filter alarm is set to 90 days.

Filter replacement

  1. Turn off the power to the heat pump by turning off the main switch.
  2. Remove the front from the heat pump by lifting it from the hooks that hold it in place.
  3. Remove the top right filter cover by unscrewing the black screws.
  4. Remove the old filter from the heat pump.
  5. Replace it with the new filter.
  6. Replace the filter cover and tighten the screws securely.
  7. Replace the front panel, insert the bottom of the front into the hooks and then over the hooks.
  8. Turn on the main switch to start the heat pump again.

Remember to replace the filter at least once a year, even if it appears clean, as dirt accumulates and can affect the unit's performance.

To reset the filter alarm

Follow these steps to reset the filter message:

  1. Tap the filter change icon on the screen.
  2. Press OK. The following text appears on the display: Exhaust air filter needs to be replaced.
  3. If not already done, perform the filter change.
  4. When you have completed the filter maintenance, press OK again. The display shows the following text: Has the filter really been replaced?
  5. Press OK again.


A general recommendation is to change the filters once a year after the pollen season. The filters must be vacuumed and replaced if necessary.

Filter replacement

To change the filter or gain access for service, follow these steps:

  1. Turn off the power to the supply air unit.
  2. Unscrew the four knobs that hold the door in place.
  3. Remove the cover to access the filter set.
  4. To change the filters, remove the old filters and fit the new filters in place.
  5. Hang the cover on the four screws and screw the knob firmly.
  6. Turn on the power of the device again.

    A sketch of how to change filters on T12 and T15

Subscribe to air filter

It can be difficult to keep track of when you last changed the air filter and then remember to order a new one in time. At Comfortzone you can subscribe to air filters. Once a year, a new air filter arrives in the mailbox. Paid and ready, couldn't be easier!