33
Mexico Super 440 FF - 480 FF -
Installation
SERVICING
67 CONTROLS PANEL REPLACEMENT
4
68 OVERHEAT THERMOSTAT REPLACEMENT (if fitted)
13. Replace the lower front panel and secure with the 2 fixing
screws.
14. Check the operation of the boiler.
1. Remove the 2 screws and lift off the
lower front panel. Refer Frame 57.
2. Pull off the thermostat knob.
3. Disconnect the inline electrical connector
between the control box and PCB box.
4. Unscrew the 2 screws and pull down the
control panel so that the 2 tabs clear the
top panel.
5. Remove the thermostat phial from the
pocket. Refer to Frame 57.
6. Remove the bottom screw and remove
the cover from the control box.
7. Remove the top screw and ease the
control box off the control panel.
8. Disconnect the mains electrical supply
from the terminal strip and release from
its clamp.
9. Assemble new control box and panel and
fit to the casing in reverse order.
10. Insert control thermostat phial into pocket
and secure with the split pin.
11. Refit the inline electrical connector
between the control box and the PCB
box.
12. Remove control box cover and make electrical supply
connections to the terminal strip. Refer to Frame 46.
1. Remove the 2 screws and lift off the lower front
panel. Refer to Frame 57.
2. Slacken the screw at the thermostat pocket and
withdraw the phial from the pocket.
3. Remove the thermostat retaining nut and withdraw
the thermostat from the control panel.
4. Transfer the electrical leads from the old thermostat
to the replacement (polarity is not important).
5. 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.
6. Replace the lower front panel and secure with the 2
fixing screws.
7. Check the operation of the boiler.
SER
VICING
