
CLEANING THE HEAT EXCHANGER FILTERS If the applicable indicator (clean the heat exchanger filters) is on, the filters must be cleaned. ENGLISH 21 To clean the filters: 1. Open the loading door. 2. Move the release button on the bottom of the door opening and open the heat exchanger door. 3. Turn the blockage to unlock the heat exchanger cover. 4. Lower the heat exchanger filters cover. 5. Lift the primary filter. Hold the heat exchanger filter and pull it out from the bottom compartment. 6. Push