30
SERVICING
Mexico Super CF445 - CF475 -
Installation & Servicing
48 TTB DOWNDRAUGHT THERMOSTAT REPLACEMENT
1.
Refer to Frame 37.
2.
Remove the control panel. Refer to Frame 30.
3.
Remove the securing screws and lift off the
control box cover.
4.
Unplug the in-line connector to the TTB
thermostat.
5.
Reach down the side of the boiler and carefully
lift the TTB bracket from its retaining slot and
clip.
6.
Withdraw the thermostat, bracket and lead
down the side of the boiler.
7.
Locate and fit the new TTB downdraught
thermostat, bracket and lead and reassemble
in reverse order, ensuring that the in-line
connector is secured.
49 PRINTED CIRCUIT BOARD (PCB) REPLACEMENT
1.
Refer to Frame 37.
2.
Remove the 2 screws and lift off the
lower front panel. Refer to Frame 30.
3.
Undo the PCB cover fixing screw and
remove the cover.
4.
Remove the HT lead from the PCB
5.
Remove the 6 push-in connectors
from the PCB.
6.
Compress the barbs on the PCB
stand-offs to release the PCB from
the box
7.
Fit the new PCB and reassemble in
reverse order.
8.
Refit the boiler casing.
9.
Check the operation of the boiler.
MEX
2156
6
4
3
5
SER
VICING
200943-1.p65
3/4/2004, 1:58 PM
30
