37
Mexico Super 100 FF & 125 FF -
Installation
SERVICING
74 AIR PRESSURE SWITCH (APS) REPLACEMENT
1.
Remove the lower front panel, control panel and top panel. Refer to Frame 57.
2.
Remove the silicon rubber tube from the fan sensing point.
3.
Disconnect the fan leads.
4.
Remove the M4 screw securing the flue connector to the fan.
5.
Slacken the 2 M4 screws securing the flue connector to the turret front panel.
6.
Disconnect the silicon rubber tube from the top of the collector hood.
7.
Remove the 4 M4 screws on the top of the
collector hood and by sliding it forwards remove
collector hood / fan assembly.
8.
Remove the three M4 screws retaining the fan to
the collector hood.
9.
Re-assemble in reverse order. Lubricate fan 'O'
ring with silicon grease. Ensure the fan leads and
2 sensing tubes are connected.
10.
Refit the boiler casing.
11.
Check the boiler operation.
73 FAN REPLACEMENT
1.
Remove the lower front panel, control panel and
the top panel. Refer to Frame 57.
2.
Remove the APS fixing screw.
3.
Remove both sensing tubes from the APS.
4.
Remove the 3 electrical connections from the
APS.
5.
Connect the new APS in reverse order.
6.
Refit the APS with the fixing screw.
7.
Refit the boiler casing.
8.
Check the boiler operation.
75 PRINTED CIRCUIT BOARD (PCB) REPLACEMENT
1.
Remove the 2 screws and lift off the
lower front panel. Refer to Frame 57.
2.
Undo the PCB cover fixing screw and
remove the cover.
3.
Remove the HT lead from the PCB
4.
Remove the 6 push-in connectors
from the PCB.
5.
Compress the barbs on the PCB
stand-offs to release the PCB from
the box
6.
Fit the new PCB and re-assemble in
reverse order.
7.
Refit the boiler casing.
8.
Check the operation of the boiler.
SER
VICING
