Flue Thermistor Replacement; Removal Of Spark Generator - Keston HEAT 2 45 Installation & Servicing

3.17 FLUE THERMISTOR REPLACEMENT

1. Refer to Section 2.32.
2. Remove the front panel. Refer to Section 3.2.
3. Disconnect the electrical connections from the
thermistor.
4. Unscrew the thermistor.
5. Fit the new thermistor with gasket seal - DO
NOT overtighten.
6. Re-assemble in reverse order.
7. Check the operation of the boiler. Refer to
Section 2.32.

3.18 REMOVAL OF SPARK GENERATOR

1. Refer to Section 2.32.
2. Remove the front panel. Refer to Section 3.2.
3. Isolate the electrical supply to the boiler
and fully isolate the boiler from any external
supply.
4. Remove the three electrical connections from
the spark generator.
5. Gently push down the ignitor to remove from
the bracket.
6. Replace unit and reasseble in reverse order,
ensuring all connections are fully inserted.
7. Check the operation of the boiler. Refer to
Section 2.32.
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SECTION 3 - SERVICING
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Installation & Servicing