Bosch Worcester Greenstar CDi Classic System ErP Series - Diverter Valve and Auto Air Vent Procedures

SERVICING AND SPARES
6 720 815 724 (2015/11) 47
Fig. 88 Heat exchanger removal 3
4. Undo flue connection (E) from sump (F).
▶ Pull flue pipe up.
▶ Remove the heat exchanger.
Fig. 89 Heat exchanger removal 4
17. Diverter valve motor (if fitted)
There is no need to drain the appliance.
▶ Disconnect the electrical connector from the diverter valve motor.
1. Pull the motor assembly (A) towards you.
The assembly will slide free from the valve.
▶ To refit, follow the above in reverse.
Fig. 90 Diverter valve motor removal
18. Diverter valve
▶ Ensure the appliance has been fully drained.
▶ Disconnect the electrical connector from the diverter valve motor.
▶ Undo the two screws holding the valve to the plastic housing.
Fig. 91 Diverter valve removal
1. Withdraw the valve (B) and clean the valve chamber if necessary.
▶ To refit, follow the above in reverse.
Ensure any seals that have been disturbed are renewed.
19. Auto air vent
▶ Ensure the appliance has been fully drained.
1. Use a screwdriver or similar to rotate the air vent anticlockwise.
2. Lift the air vent (C) out of the housing and remove.
▶ To refit, follow the above in reverse.
Fig. 92 Auto Air Vent removal
In case of problems when refitting the motor: Connect
the electrical connector to the motor and switch the
appliance on. Then the motor goes to the middle position
and you can refit it without difficulty.
8.
C
D
3.
6 720 812 175-19.1O
4.
E
F
6720647361-70.1Wo
1.
A
6720647361-40.1Wo
1.
B
6720647361-50.1Wo
C
2.
1.
6 720 812 175-21.1O
N