27
SERVICING
Mexico Super CF445 - CF475 -
Installation & Servicing
42 IGNITION LEAD REPLACEMENT
Ignition
lead
Pilot supply
MEX 2146
Purse clip
43 OVERHEAT THERMOSTAT REPLACEMENT (if fitted)
"
mex2209
Thermostat
pocket
Hook plate
Sensor end
Mex 1861
1.
Refer to Frame 37.
2.
Remove the 2 screws and lift off the lower front
panel. Refer to Frame 30.
3.
Slacken the screw at the thermostat pocket and
withdraw the phial from the pocket.
4.
Remove the thermostat retaining nut and
withdraw the thermostat from the control panel.
5.
Transfer the electrical leads from the old
thermostat to the replacement (polarity is not
important).
6.
Fit the new thermostat, ensuring that the
alignment peg on the thermostat sits in the
small hole adjacent to the main fixing hole, and
reassemble in reverse order.
7.
Replace the lower front panel and secure with
the 2 fixing screws.
8.
Check the operation of the boiler.
1.
Refer to Frame 37.
2.
Remove the 2 screws, lift off the
front panel and remove the grille
assembly. Refer to Frame 30.
3.
Disconnect the electrical leads
from the gas valve.
4.
Disconnect the ignition lead from
the PCB.
5.
Undo the gas cock union.
Remove the 4 wing nuts and
withdraw the burner and controls
assembly, complete, from the
boiler.
6.
Remove the purse clip.
7.
Disconnect the ignition lead from
the base of the electrode and the
PCB, and withdraw the lead.
8.
Fit the new lead and reassemble
in reverse order.
SER
VICING
200943-1.p65
3/4/2004, 1:58 PM
27
