Benchmark ZWB 7-29 CC1 Installation And Servicing page 50

Table of contents
Table of contents
Warnings
Symbols
1 Layout of Appliance
1.1 combi
1.2 system
2 Bosch Heatronic board functions
2.1 Initialisation
2.2 Temperature display
2.3 Indication of faults
2.4 Special programme visualisation
2.5 Boiler service functions
2.5.1 First Service Level
2.5.2 Secondary Service Level
3 Failure identification procedure
3.1 Notes on using the fault code tables
3.2 Summary
3.2.1 Appliance faults
3.2.2 Faults that are not displayed
3.3 Error codes on the display
3.4 Faults that are not displayed
3.4.1 Appliance faults
3.4.2 Programmer faults
4 Appendix
4.1 NTC values
4.1.1 Outside temperature sensor
4.1.2 CH flow NTC sensor, heat store
NTC sensor, constant hot water
NTC sensor and hot water NTC sensor
4.2 Electronic schemes
4.3 List of most important replacement parts
4.4 Approved corrosion inhibitors and
anti-freeze fluids for central
heating water
4.4.1 Frost protection
4.4.2 Sealing agents
4.5 Summary of BDH Information Sheet
on Identifying Corrosion by CFCs
2
3
3
4
4
5
6
6
6
6
6
8
8
11
13
13
14
14
14
15
42
42
48
52
52
52
52
53
54
55
55
55
55
7 181 465 346 GB (03.02)