0020230533_06 ecoFIT pure Installation and maintenance instructions 35
4. Remove the screw (1).
5. Push the clip upwards.
6. Remove the flue pipe (2).
7. Remove the air intake pipe (3).
8. Remove the plugs from the gas valve assembly (4) and
from the fan (5).
9. Remove the gas-air mixture unit (6).
10. Remove the burner seals (7) and the burner (8).
11. Check the burner and the heat exchanger for damage
and dirt.
12. If necessary, clean or replace the components accord-
ing to the following sections.
13. Install the two new burner seals.
12.7 Cleaning the heat exchanger
1. Protect the open electronics box from spraying water.
2. Clean the ribs of the heat exchanger (1) with water.
◁ The water runs out into the condensate tray.
12.8 Checking the burner
1. Check the surface of the burner for possible damage. If
you see any damage, replace the burner.
2. Install the two new burner seals.
12.9 Checking the ignition electrode
1. Disconnect the connection (2) and the earth cable (1).
2. Remove the fixing screws (3).
3. Carefully remove the electrode from the combustion
chamber.
4. Check that the electrode ends (4) are undamaged.
5. Check the electrode distance.
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