40
icos - Installation & Servicing
SERVICING
63
OVERHEAT THERMOSTAT REPLACEMENT
64
DRY FIRE THERMISTOR REPLACEMENT
1. Refer to Frame 52.
2. Remove the boiler front panels
and inner sealing panel. Refer to
Frames 45 and 46.
3. Drain down the system.
4. Drain down the heat exchanger
from the drain cock.
5. Pull off the electrical connection.
6. Unscrew and withdraw the
thermistor.
7. Fit the new thermistor, using the
gasket supplied.
8. Reassemble in reverse order.
9. Check operation of the boiler.
Refer to Frame 52.
1. Refer to Frame 52.
2. Remove the boiler front panels and inner sealing
panel.
3. Pull off the 2 electrical leads from the thermostat
body.
4. Remove the 2 screws retaining the O/H thermostat.
5. Fit the new thermostat, and reconnect leads
6. Reassemble in reverse order.
7. Check operation of the boiler. Refer to Frame 52.
SERVICING
4
3
4
5 6
202414-6.pmd 19/02/2008, 13:0740
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