Zanussi ULTRA COMBI 35 Installation And Servicing page 45

49 FLAME DETECTION ELECTRODE REPLACEMENT
1. Refer to Frame 43.
2. Remove the burner. Refer to
Frame 46.
3. Unplug the flame detection lead
from the electrode.
4. Remove the 2 screws retaining
the detection electrode.
5. Remove the electrode.
6. Fit the new flame detection
electrode, using the new gasket
supplied.
7. Reassemble in reverse order.
8. Check the operation of the
boiler. Refer to Frames 32 & 33.
50 SPARK GENERATOR REPLACEMENT
1. Refer to Frame 43
2. Disconnect the leads from the spark generator.
3. Pull the spark generator to unclip from the mounting
bracket.
4. Fit the new spark generator and re-assemble in reverse
order ensuring that the the earth lead is replaced.
5. Check operation of the boiler .Refer to Frames 32& 33.
Spark Generator
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Installation and Servicing
SERVICING
Flame Detection Electrode
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51 GAS CONTROL VALVE REPLACEMENT
1. Refer to Frame 43
2. Unplug the electrical lead connection from the gas control valve.
3. Disconnect the earth wire.
4. Remove the outlet gas valve clip and slide the pipe upwards
5. Undo the gas inlet pipe union at the inlet to the gas valve.
6. Undo the single screw fixing the gas valve to the mounting
bracket and withdraw the valve forwards.
7. Fit the new gas control valve ensuring that the O ring and
sealing washer are in place and reconnect gas and electrical
connections.
8. Check operation of the boiler. Refer to Frames 32 & 33.
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