Benchmark Procombi Exclusive 24 Installation & Servicing Instructions Manual page 42

45 SPARK GENERATOR REPLACEMENT
1. Refer to Frame 39.
2. Disconnect the leads from the spark
generator
3. Remove the single M5 Screw
securing the spark generator to the
gas valve mounting bracket.
4. Lift the spark generator up and out of
the bottom retaining moulding.
5. Fit the new spark generator and re-
assemble in reverse order ensuring
that the the earth lead is replaced
6. Check operation of the boiler .Refer
to Frames 28 & 29.
46 GAS CONTROL VALVE REPLACEMENT
1. Refer to Frame 39.
2. Unplug the electrical lead connection
from the gas control valve and
disconnect the earth wire.
3. Remove the outlet gas valve clip and
slide the pipe upwards.
4. Undo the gas inlet pipe union at the
inlet to the gas control valve.
5. Undo the single screw fixing the gas
valve to the mounting bracket and
withdraw the valve forwards. To gain
access, temporarily move the seal.
6. Fit the new gas control valve, ensuring
that the 'o' ring and sealing washer
are in place. Replace screw and re-
connect gas and electrical connections.
Ensure sealing washer is fully
located.
7. Check operation of the boiler. Refer to
Frames 28 & 29.
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SERVICING
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Procombi Exclusive -
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Installation and Servicing