Cleaning The Heat Exchanger; Checking The Burner; Checking The Ignition Electrode - Vaillant ecoTEC plus Installation And Maintenance Instructions Manual

10 Inspection and maintenance
5. Push the clip (2) upwards.
6. Remove the flue pipe (3).
B
C
7. Remove the plugs from the gas valve.
8. Remove the gas-air mixture unit.
9. Remove both burner seals from the burner cover.
1
10. Remove the burner (4).
18
10.4
2
1.
2.
A
B
3 3.
4.
C
10.5
▶
10.6
1.
D
2.
3.
4.
5.
A
6.
Installation and maintenance instructions ecoTEC plus 0020200871_00

Cleaning the heat exchanger

Check the heat exchanger for damage and dirt.
If required, clean and replace the heat exchanger.
1
Protect the folded down electronics box against sprayed
water.
Clean the ribs of the heat exchanger (1) with water.
◁
The water runs out via the condensate tray.

Checking the burner

Check the surface of the burner for damage. If you see
any damage, replace the burner.

Checking the ignition electrode

3 4
2
1
Disconnect the connection (2) and the earthing cable
(1).
Remove the fixing screws (3).
Carefully remove the electrode from the combustion
chamber.
Check that the electrode ends (4) are undamaged.
Check the electrode distance.
–
Clearance for the ignition electrodes: 3.5 ... 4.5 mm
Make sure that the seal (5) is free from damage.
▽
If necessary, replace the seal.
5