Table Of Contents - Worcester ZWBR 7-30 R 30 HE PLUS COMBI Service Booklet

Contents
Contents
Safety precautions
Symbols
1 Layout of Appliance
2 Operation
2.1 Initialisation
2.2 Standard display
2.3 Displaying service functions
2.4 Setting service functions
2.5 Resetting service functions to factory
settings
2.5.1 Resetting service functions 0.0 to 4.9 to
their factory settings (Reset 1):
2.5.2 Resetting service functions 0.0 to 9.9 to
the factory setting (Reset 2):
3 Boiler service functions
3.1 Summary
3.2 Explanation of service functions
4 Rectifying faults
4.1 Indication of faults
4.1.1 ... on the boiler
4.2 Summary
4.2.1 Appliance faults
4.2.2 Faults that are not displayed
4.3 Notes on using the fault code tables
4.4 Error codes on the display
4.5 Faults that are not displayed
4.5.1 Appliance faults
4.5.2 Programmer faults
5 Replacement of Parts
5.1 PCB control board and transformer
5.2 Fan Assembly
5.3 Primary Heat exchanger/Burner
5.4 Pump
5.5 Clean condensation trap
5.6 Motor of 3-way diverter valve (Fig. 14)
5.7 3-way diverter valve
5.8 Domestic Hot Water Heat Exchanger
5.9 Electrode assembly
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Supplied By www.heating spares.co Tel. 0161 620 6677
3 6 Appendix
6.1 NTC values
6.1.1 Flue sensor
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6.1.2 Outside temperature sensor
6.1.3 CH flow NTC sensor, DHW cylinder NTC
sensor 1 and hot water NTC sensor
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6.2 Electrical wiring diagram
6.3 Approved corrosion inhibitors and
anti-freeze fluids for central heating water
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6.4 List of Code plugs used with
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this appliance
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6.5 Summary of BDH Information Sheet on
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Identifying Corrosion by CFCs
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7 181 465 347 (05.01)