SERVICING AND SPARES
Greenstar FS CDi
ErP
6720818079 (2016/04)
37
Flue Temperature limiter [5]
▶ Remove the connector.
▶ Using a small terminal screwdriver, prise the sensor and grommet
from the plastic housing. Take care not to damage the plastic
housing.
Fig. 58 Sensors
6.9.7
Condensate trap:
▶ Remove the condensate pump, refer to page 36.
▶ Remove the screw retaining the trap
▶ Rotate the condensate trap anti-clockwise by 90°
▶ Pull the trap down from the sump connection
▶ Angle the trap backwards and remove from the boiler
▶ Before replacing the trap, fill with at least 250ml of clean water
▶ Replacing the trap is the reverse of the removal procedure
▶ Reconnect the condensate pump and reconnect the pipe from the
trap
▶ Reconnect the condensate disposal pipe
Fig. 59 Condensate trap access
6.9.8
Gas valve:
▶ Check that the gas cock is turned off.
▶ Disconnect the black rubber tube [1] from the gas valve.
▶ Remove the solenoid connections [2] at the side of the gas valve.
▶ Release the gas inlet union [3] at the inlet.
▶ Undo the union [4] , within the inner casing, securing the valve to the
gas/air tube.
▶ Transfer the inlet pipe assembly to the new gas valve.
▶ Reconnect the plastic union [4] to the gas valve.
▶ Reconnect the solenoid connection [2].
▶ Re-attach the black rubber tube [1] to the gas valve
▶ Check for gas tightness when the new gas valve has been fitted.
▶ After re-assembly check CO/CO
2
levels as described in the section
“Setting the air/gas ratio” on page 34.
Fig. 60 Gas valve
6.9.9
Electrode assembly and heatshield:
▶ Switch off the master switch.
▶ Isolate the appliance from the power supply.
▶ Move the control panel into service position.
▶ Release the 4 screws to remove inner case door.
▶ Remove the leads from the electrodes.
▶ Unscrew the two fixing screws [2] and carefully remove the
electrode assembly [1].
▶ Inspect the spark/flame electrode assembly and ceramics for signs of
contamination or damage, replace as necessary.
▶ Re-assemble the electrode set with a new gasket and secure with the
screws [2] removed earlier.
▶ After re-assembly check that the CO/CO
2
levels as described in the
section “Setting the air/gas ratio” on page 34.
6720818079-11.1Wo
1
2
3
4
5
6720818077-05.1Wo
WARNING:
Electrode assembly
▶ Do not remove the electrode assembly unless a new
gasket is available for re-assembly.
6720818077-20.1W
o
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2
3
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