Benchmark ZWB 7-29 CC1 Installation And Servicing page 60

Bosch Heatronic board functions
Values that can only be read:
Description
5.2 Automatic gas igniter status and/or fault
9.3 Automatic gas igniter Asic fault code
Table 6 Secondary Service Level; Values that can only be read
12
Display Reset Value
00 - FF -
00 - FF -
7 181 465 346 GB (03.02)