Vaillant ecoFIT pure Series, Installation And Maintenance Instructions Manual

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Installation and maintenance instructions ecoFIT pure 0020230531_06
13.5 Replacing defective components
13.5.1 Replacing the burner
1. Remove the gas-air mixture unit. (
→
Page 32)
2. Remove the two burner seals.
3. Remove the burner .
4. Insert the new burner.
5. Insert two new burner seals in the burner hood.
6. Install the gas-air mixture unit. (
→
Page 34)
13.5.2 Replacing the gas-air mixture unit
1. Remove the gas-air mixture unit. (
→
Page 32)
2. Install the new gas-air mixture (
→
Page 34).
13.5.3 Replacing the heat exchanger
1. Remove the front casing. (
→
Page 16)
2. Remove the gas-air mixture unit. (
→
Page 32)
1
A
B
3. Remove the gas pipe (1) .
1
2
3
2 4
A
B
4. Remove the temperature sensor (3) .
5. Remove the upper clip (1) .
6. Remove the lower clip (4) .
7. Remove the flow pipe (2) .
2
2 3
B
1
A
8. Remove the upper clip (1) .
9. Remove the lower clip (3) .
10. Remove the return pipe (2) .
1
A
2
11. Remove the clip underneath the condensate tray (1) .
12. Undo the four screws (2) .
2
1
B
C
A
13. Remove the ignition electrode (1) .
14. Lift the heat exchanger up slightly and remove it to-
gether with the condensate tray.
15. Remove the ignition transformer (2) .
16. Install the new heat exchanger in reverse order.