TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
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Ignition Pack Replacement: (Procedure 12) 18 - 20 Litre
1. Remove the front panel, Refer to Procedure 1.
2. Disconnect high voltage lead from spark electrode.
3. Disconnect the multi pin connector from the Ignition Pack.
4. Remove the retaining screw.
5. Remove the Ignition Pack.
6. Reassemble in reverse order of above. Test for gas leaks using soapy water solution.
Ignition Pack Replacement: (Procedure 12A) 24 - 26 Litre
1. Remove the front panel, Burner Change Over Assembly, Combustion Chamber Front
Panel Assembly, Lower Burner Assembly and Upper Burner Assembly. Refer to
Procedures 1, 2, 3, 4 and 5.
2. Disconnect high voltage lead from spark electrode.
3. Disconnect the multi pin connector from the Ignition Pack.
4. Remove the retaining screw.
5. Remove the Ignition Pack.
6. Reassemble in reverse order of above being careful not to pinch or damage wiring
when replacing Upper Burner Assembly. Replace gaskets (item numbers 105 and 108)
if required.
7. Test for gas leaks using soapy water solution.
Flow Sensor: (Procedure 13)
Note: When a flow sensor is installed as a spare part in any model heater other
interconnecting components may
also require replacing. Refer to „Product Changes‟ on
page 10
and „Parts Replacement Scenarios‟ on page 11 for more information.
1. Isolate cold water supply.
2. Remove the front panel. Refer to Procedure 1.
3. Disconnect the multi-pin plug to the flow sensor.
4. Remove 2 Philips head retaining screws.
5. Remove Flow Sensor (Note: Water may escape during this procedure).
6. Reassemble in reverse order of above.
Bypass Solenoid: (Procedure 14)
Note: Models with a
–B or –C suffix are fitted with a bypass solenoid. For models without
a suffix, compare the appliance to the wiring diagrams on pages 6 and 7 to determine
whether it has a mechanical or solenoid bypass.
The bypass solenoid is only available as part of the water body assembly, follow
procedure 7.
Thermistors: (Procedure 15)
Note: When a thermistor(s) is installed as a spare part in any model heater other
interconnecting components may also require re
placing. Refer to „Product Changes‟ on
page 10
and „Parts Replacement Scenarios‟ on page 11 for more information.
1. Remove the front Panel. Refer to Procedure 1.
2. Relieve water pressure through a hot tap.
3. Locate the Thermistor requiring replacement.
4. Disconnect the multi-pin plug from the Thermistor.
5. Remove the retaining screws and withdraw the thermistor taking care not to damage
the o
‟ring (Note: With the exception of the Ambient Air Thermistor, water may escape
during this procedure).
6. Reassemble in reverse order of above.