52
fig. 90
GW 474/0
fig. 91
GW 475/0
•
Remove retention clip (3, fig. 90).
•
Remove screw (5, fig. 90).
•
Pull water section forward to relea-
se from pipe (4, fig. 90) and lift
water section out of boiler.
•
Pull off clear water section lid and
disconnect the wires to DHW
microswitch.
•
Reassemble in reverse order.
•
Carry out electrical checks
(see Section 5.1).
•
Refill and repressurise the boiler
(see Section 5.4).
7.19.1 Change of water section
diaphragm (fig. 91)
•
Remove water section as in Section
7.19.
•
Remove the 6 screws (1), and lift
water section cover.
•
Remove diaphragm.
•
Reassemble in reverse order.
•
Carry out electrical checks
(see Section 5.1).
•
Refill and repressurise the boiler
(see Section 5.4).
7.20 Replacement of DHW
microswitch (fig. 90).
•
Isolate appliance from electricity
supply.
•
Remove front casing as in Section
7.1.3.
•
Lower front control panel as in
Section 7.1.6.
•
Pull off clear cover from water
section.
•
Disconnect wires from DHW
microswitch (6).
•
Gently push DHW micro to the left
with a screwdriver to release it from
two securing pins.
•
Reassemble in reverse order.
•
Carry out electrical checks
(see Section 5.1).
