Baxi 35/80 IE, Installation & Servicing Instructions Manual

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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 Fan ( Figs. 45 & 46 )
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.
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.
8. Reassemble in reverse order of dismantling.
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12.3 Heat Exchanger ( Fig. 47 )
Fig. 47