BR/BD 100/250 R BP / RI
Troubleshooting
Page 135 / 171
Service Manual 08.2007
6.2.2 Accessories module (A5) error messages
Module
Fault
classification
Display code
Action
Accessories module Z
Cable break or
short circuit at
A5/X6, or X10
Z1/511
1. Check supply lines to the connected consumers
A5/X6, or X10 for consistency, short circuits or
loose plug connections.
2. Check if the consumers (H2, H3, H4) have high
impedance or are short-circuiting, if necessary,
replace.
3. If fault remains, replace A5.
Supply in load
circuit interrupted
Z1/631
1. Check supply connection A4/DR1 for proper
seating.
2. Check supply lines and fuses for the module for
proper connection.
