Vaillant ECOmax VUW 236 EH Instructions For Installation And Servicing page 56

•
Disconnect three cable plugs
(1, fig. 100).
•
Disconnect two earth wires (2,
fig. 100) from earth terminal strip.
•
Remove screw (3, fig. 100).
•
Remove wiring terminal box cover
by undoing two screws
(1, fig. 101).
•
Disconnect wires from relay panel
at wiring connector strip.
•
Remove screw (4, fig. 102) and
remove suppressor (5, fig. 102).
•
Lift cable grommets (4, fig. 100)
out of grommet channel.
•
Squeeze together retaining clip
points (5, fig. 100) and lift panel
up at the front and forward to
remove.
•
Replace in reverse order.
NOTE: When refitting relay board
ensure that the on/off control knob
spindle is correctly aligned with the
hole in on/off switch of the panel,
and that rib of on/off switch (a,
fig. 103) correctly engages into
groove of knob spindle.
•
Carry out electrical checks
(see Section 5.1)
56
fig. 100
fig. 101
fig. 102
fig. 103