10 Inspection and maintenance
24
Installation and maintenance instructions Energy 2 0020283671_03
A
C
D
B
6
9.
Remove the gas-air mixture unit
(6)
.
7
7
8
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.
10.7
Cleaning the heat exchanger
1
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.
10.8
Checking the burner
1.
Search the surface of the burner for possible damage. If
you see any damage, replace the burner.
2.
Install the two new burner seals.
10.9
Checking the ignition electrode
1
2
3
4
5
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.
–
Clearance for the ignition electrodes: 3.5 to 4.5 mm
6.
Make sure that the seal
(5)
is free from damage.
▽
If necessary, replace the seal.
10.10 Cleaning the condensate siphon
C
2
3
1
A
B
1.
Unclip the lower section of the siphon
(1)
from the up-
per section of the siphon
(2)
.
2.
Remove the float
(3)
.
3.
Flush out the float and lower section of the siphon with
water.
4.
Fill the lower section of the siphon with water up to 10
mm below the upper edge of the condensate discharge
pipe.
5.
Re-insert the float
(3)
.
Note
Check whether the float is present in the
condensate siphon.