Cleaning The Heat Exchanger; Checking The Burner; Checking The Ignition Electrode; Cleaning The Condensate Trap - Vaillant ecoFIT pure 412 Installation And Maintenance Instructions Manual

11 Inspection and maintenance
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).
11.6

Cleaning the heat exchanger

1. Check the heat exchanger for damage and dirt.
2. If required, clean and replace the heat exchanger.
3. Protect the folded down electronics box against sprayed
water.
1
4. Clean the ribs of the heat exchanger (1) with water.
◁
The water runs out via the condensate tray.
24
11.7
▶
Check the surface of the burner for damage. If you see
any damage, replace the burner.
11.8
D
1. Disconnect the connection (2) and the earthing cable
A
(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.
–
6. Make sure that the seal (5) is free from damage.
▽
11.9
1. Unclip the lower section of the condensate trap (1) from
the upper section of the condensate trap (2).
2. Remove the float (3).
3. Flush out the lower section of the condensate trap with
water.
4. Re-insert the float (3).
Installation and maintenance instructions ecoFIT pure 0020230535_05

Checking the burner

Checking the ignition electrode

3 4 5
2
1
Clearance for the ignition electrodes: 3.5 ... 4.5 mm
If necessary, replace the seal.

Cleaning the condensate trap

2
B
A
1
Note
Check whether the float is present in the
condensate trap.
3