To Remove The Gas Shut-Off Microswitch; To Remove The Fascia - Baxi 748 Installer's Manual

16.3 To remove the gas shut-off
microswitch.
(See figures 34, 35 & 36).
The gas shut-off microswitch is stamped
V4NT9C2YCGPX or V4NT9C2YCAUX.
1. Remove the bottom front cover or fire
front casting.
2. Detach the microswitch cover by
removing one screw and pulling clear of
the location lug (See figure 34).
3. Loosen the thermocouple nut to free the
microswitch leads and pull the leads clear
of the thermocouple interrupter block (See
figure 36).
4. Detach the bridging bracket, microswitch
assembly by removing two screws (See figure
35).
5. Replace in the reverse order. When
refitting the leads to the interrupter block,
make sure that they are secured firmly to give
a good electrical contact.

16.4 To remove the fascia.

1. Remove the bottom front cover or fire
front casting.
2. Detach the control-linking bar from the control pivot
bracket by removing the knurled screw, which joins the
control linking bar to the control pivot unit (See figure
37).
3. Remove the two screws securing the bottom of the
fascia to the sides of the hotbox (See figure 38).
4. Make sure that the control linking bar has been
detached (See point 2). Carefully lift the fascia unit
upward to clear the upper retaining brackets on the
hotbox (See figure 39). Pull the fascia clear and place
carefully aside.
5. Refit in the reverse order. Make sure that the fascia is
properly located over the upper retaining brackets. See section 11 of this manual for
detailed fitting instructions.
©
Baxi Heating U.K. Limited 2006.
INSTALLER GUIDE
Figure 36. Thermocouple interrupter block
Page 36
Figure 37. Control linkage
disconnection
Figure 38. Securing screws
(fascia may differ from that
shown)