Fan Assembly; Pump - Worcester ZWBR 7-28 HE plus Installation And Servicing Instructions

Maintenance
9.3.2

Fan Assembly

Fig. 54
y Switch off the appliance.
y Disconnect the appliance from the power supply.
y Undo lower pipe union on gas pipe (1.). Refer to
fig. 54.
y Remove fan lead and earth connector (2.). The earth
connector has a positive clip fixing.
y Remove fixing screws attaching fan to the burner
cover (3.).
y Remove fan together with gas pipe and mixer unit.
y Separate the fan from the pipe and mixer unit by
twisting the mixer unit to release it (4.).
42
9.3.3

Pump

y Switch off the appliance.
y Disconnect the appliance from the power supply.
y Remove two switchbox fixing screws (1.). Refer to
fig. 55.
y Lower switchbox (2.).
y Remove screw from underside of right-hand plastic
cover plate (3.).
y Pull cover plate forwards to remove (4.).
y Unscrew and remove the the siphon by releasing the
jubilee clip. Refer to fig. 51.
y Unscrew the pump union nuts (5.). Refer to fig. 55.
y Carefully remove the pump and disconnect the leads.
Alternatively
y After removing the siphon release the four Allen
screws and remove and replace the pump head.
Fig. 55
6 720 610 597 GB (01.07)