Changing Components - Baxi Combi 105e Installation And Servicing Instructions

Pressure
Switch
Fig. 45
Pressure
Switch Wires
Fan Wires
Fan and Hood
Assembly
Fan
Spring
Washer
Securing Screw
Fan Hood
28
Sensing
Tubes
Sensing Tubes
Fig. 46
Spring Clip
Fig. 47

12.0 Changing Components

IMPORTANT: When changing components
ensure that both the gas and electrical
supplies to the boiler are isolated before any
work is started. When the new component has
been fitted turn the selector switch fully
anticlockwise against the spring pressure to
position R and hold for 2 seconds to reset the
boiler before recommissioning.
See Section 11.1 "Annual Servicing" for removal
of case panel, door etc.
12.1
1. Note the positions of the two sensing tubes
and three wires and remove them.
2. Remove the two screws holding the pressure
switch to the combustion box top panel.
3. Fit the new pressure switch and reassemble all
components in reverse order of dismantling.
12.2
1. Note the positions of the two sensing tubes on
the outlet elbow and three wires on the fan motor
and remove them.
2. Slacken the screws on the outlet sealing collar.
Ease the collar upwards as far as possible.
3. Remove the four screws securing the
combustion box door and remove the door.
4. Remove the spring clips retaining the air box
side baffle plates. Disengage the tabs on the
baffles from the slots in the fan hood.
Outlet Sealing
Collar
5. Undo the screws securing the fan hood to the
appliance back panel, and draw the fan and hood
assembly forwards.
6. Remove the screws and spring washers
securing the fan to the hood.
7. Fit the new fan to the hood using the screws
and spring washers previously removed.
Baffle
Tab
8. Reassemble in reverse order of dismantling.
Pressure Switch (Fig. 45)
Fan (Figs. 46 & 47)