1.
Switch off the heat pump.
2.
Remove the front hatch by pulling it straight out.
3.
Pull out the filter cassette.
4.
Remove the filter and shake/vacuum it clean.
5.
Check the condition of the filter.
6.
Carry out assembly in reverse order.
Even if the filter appears clean, dirt collects in it and this affects the effi-
ciency of the filter. Therefore, replace it after 1 years. New filters can be
ordered via the installer.
NOTE
Water or other liquids must not be used for cleaning.
11Chapter 2 | The heating installation – the heart of the houseNIBE FLM