
59
15.23 Access User Interface and Main PCB
For access, refer to section 15.1.
Remove control box retaining screw, see diagram 15.18.
Hinge down the control box.
Release the control box cover by carefully pressing the four
retaining clips, see diagram 15.18.
15.24 Main PCB
IMPORTANT
: When replacing the board refer to instructions
supplied with the replacement.
For access, refer to section 15.23.
Remove the electrical connections to the PCB.
Ease back the four PCB retaining clips and withdraw the PCB
from the retaining lugs, see diagram 15.19.
When refitting the rear panel ensure the leads are not
trapped.
15.25 User Interface
IMPORTANT
: When replacing the board refer to instructions
supplied with the replacement.
Refer to section 15.23 for access.
Remove main PCB, refer to section 15.24.
Remove electrical connection.
Gently ease back the retaining clips, see diagram 15.20.
Withdraw the board.
15.26 Fuse, Main PCB - Control Box
For access, refer to section 15.23.
The fuse is located at top left hand side of the PCB, see
diagram 15.19.
15.27 Control Box
For access, refer to section 15.23.
Remove relevant plugs and connectors, refer to wiring
diagram 14.2.
Withdraw grommets and leads so they are hanging loose.
Unthread the retaining cord and remove the control box.
by drawing it outwards away from its retaining slots, see
diagram 15.18.
15.28 Inner Casing Panel Seal
For access, refer to section 15.1.
Refer to diagram 13.10.
Remove the inner casing panel.
To replace remove the old seal, thoroughly clean the casing
surfaces. Fit the new seal, it is supplied to the correct length.
Refit the inner casing panel.
NOTE
: Ensure the seal is fitted correctly giving an airtight
joint.
USER INTERFACE
BOARD
RETAINING
CLIPS
ELECTRICAL
CONNECTION
13355
Diagram 15.18
13535
15 Replacement of Parts
RETAINING
CLIPS (4 OFF)
MAIN PCB
RETAINING
LUGS
FUSE
Diagram 15.19
Diagram 15.20
RETAINING
SLOTS
SECURING
SCREW
REAR
PANEL
CONTROL
PANEL
RETAINING
CLIPS
13536
Summary of Contents for 18sxi
Page 30: ...30 10 Twin Flue Length Preparation and Installation Diagram 10 24 13226...
Page 46: ...46 14 Fault Finding 13012 Diagram 14 5 CENTRAL HEATING...
Page 48: ...48 14 Fault Finding 13447 Diagram 14 6 Fault Codes continued...
Page 61: ...61 16 Spare Parts Diagram 15 21 13861 1 2 3 4 5 7 9 10 12 6 8 11 13...
Page 63: ...63...