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16.15 (F28e ONLY) Heating Return Thermistor
For access, refer to section 16.1.
Refer to diagram 16.12.
Remove the electrical connections from the thermistor.
Remove the thermistor and retaining clip from the flow pipe.
Fit the replacement thermistor using the heat sink compound
supplied.
Note: When reconnecting the polarity of the wiring to thermistors
is unimportant.
16.15a (F28e SB ONLY) Heating Return
Thermistor
For access, refer to section 16.1.
Refer to diagram 16.11a.
Remove the electrical connections from the thermistor.
Remove the thermistor and retaining clip from the flow pipe.
Fit the replacement thermistor using the heat sink compound
supplied.
Note: When reconnecting the polarity of the wiring to thermistors
is unimportant.
16.16 Overheat Thermostat
For access, refer to section 16.1.
Note: It may be necessary to remove DC Fan supply refer to
section 16.5.
Refer to diagram 16.13.
Positioned at the rear left under the fan.
Remove the electrical connections from the overheat thermostat.
Remove the overheat thermostat and retaining clip from the
flow pipe.
Fit the replacement thermostat using the heat sink compound
supplied.
Note: When reconnecting the polarity of the wiring to thermostat
is unimportant.
16.17 Automatic Air Vent
For access, refer to section 16.1.
Refer to section 13.9 and drain the boiler heating circuit.
Refer to diagram 16.14.
Unscrew the automatic air vent.
Fit the new automatic air vent and 'o'ring ensuring the vent cap
is left loose.
Refill, vent and pressurise the boiler.
Check for leaks.
2000225242A
16 Replacement of Parts
(F28e ONLY)
(F28e SB ONLY)
52
HEATING RETURN THERMISTOR
HEATING RETURN
THERMISTOR
OVERHEAT
THERMOSTAT
Diagram 16.12
Diagram 16.12a
Diagram 16.13
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