50
•
Undo union (1, fig. 84) and remove
bypass (2, fig. 84).
•
Reassemble in reverse order using
sealing washers supplied.
•
Refill and repressurise the boiler
(see Section 5.4).
7.17 Replacement of diverter
valve
•
Turn off boiler as in Section 7.1.1.
•
Release CH water pressure and
drain boiler as in Section 7.1.2.
•
Remove front casing as in Section
7.1.3.
•
Lower front control panel as in
Section 7.1.6.
•
Remove screw (1, fig. 85) and lift
ignition transformer clear of diverter
valve.
•
Remove tube (1, fig. 86) by pulling
to left.
•
Remove four screws (2, fig. 86)
•
Pull diverter valve to remove.
•
Remove diverter valve operating
solenoid cover (3, fig. 86) and
disconnect solenoid wires.
•
Reassemble in reverse order.
•
Carry out electrical checks
(see Section 5.1).
•
Refill and repressurise the boiler
(see Section 5.4).
fig. 84
GW 471/0
fig. 85
GW 496/0
fig. 86
GW 477/0
