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6.6
Reflector
6.6.1
Dirt accumulated on the outer surfaces of the reflector should be brushed off and the reflective surfaces
cleaned with a soft cloth and detergent in water. A mild non-abrasive metal polish may be used where extra
discolouration has occurred.
7.
Replacing Components
IMPORTANT: Disconnect gas and electrical supplies to the appliance before carrying out any repair work. This
work can be carried out at high level using a purpose designed access tower, but it is preferable that this work
should be carried out at ground level.
7.1
Ignition Electrode
7.1.1
Disconnect the black HT ignition lead from the ignition (spark) electrode by gently pulling the plastic
shroud from the Raja connector of the electrode.
7.1.2
Unscrew the two M4 screws securing the electrode to the Side Frame Panel-RH and withdraw the electrode.
7.1.3
Before assembling a replacement electrode, check that the spark gap is 3.5mm. Insert the re-placement
electrode into Side Frame Panel-RH and secure in position with the two M4 screws.
7.2.
Flame Sensor
7.2.1
Disconnect the grey flame sensor lead from the flame sensor probe by gently pulling the connector, using
pliers.
7.2.2
Unscrew the two M4 screws securing the flame probe to the Side Frame Panel-RH and withdraw the flame
probe.
7.2.3
After assembling a replacement flame sensor and securing it to the Side Frame Panel-RH with the two M4
screws, replace the grey flame sensor lead, ensuring that the connector is securely attached to the flame
sensor.
7.3
Ignition Control (Honeywell S4565PD 2004)
7.3.1
Disconnect both the grey flame sensor lead and black HT ignition lead from the ignition control.
7.3.2
Unscrew the screw securing the red cover to the ignition control and remove the cover.
7.3.3
Unscrew the two screws securing the cable clamp to the ignition control and remove the cable clamp.
7.3.4
Disconnect the 10 way Molex electrical connector from the ignition control and gently pull the ignition
control from the gas control valve.
7.4
Ignition Control (S.I.T. 0.537.008)
7.4.1
Disconnect the grey flame sensor lead, the black H.T. ignition lead and the green/yellow earth lead from the
ignition control.
7.4.2
Unscrew the two screws securing the cover to the ignition control and the ignitor control is the control valve and
remove the cover.
7.4.3
Disconnect the 12 way Molex connector from the ignition control and gently pull the ignition control from the gas
control valve.