Glow-worm ENERGY 25c - 11.6.4 Replacing the pump head

Troubleshooting 11
0020177746_03 ENERGY Installation and maintenance instructions 27
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 supply 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.
11.6.4 Replacing the pump head
1
2
1. Disconnect the pump cable from the electronics box.
2. Undo the four bolts (1).
3. Remove the pump head (2).
4. Replace the O-ring.
5. Use four screws to secure the new pump head.
6. Connect the pump cable to the electronics box.