Bosch CR 10 H Manual page 29

A11 1094
A71
...
A74
A11 3091 ...
3094
A61 3091 ...
... 3098
A68
A21 1001
A21 3141 ...
... 3144
A24
A22 1001
...
A28
CR 10 H – 6720876740 (2017/08)
Possible cause and
remedy from the specialist
No communication with ventilation unit.
▶ Check cabling.
Remote control not registered correctly in the system.
▶ Check and, if necessary, correct the configuration in the
higher-level user interface.
Room temperature sensor for remote control is faulty
(A11/3091: heating/cooling circuit 1, ..., 3094: heating/
cooling circuit 4).
▶ Replace CR 10 H.
Room temperature sensor for CR 10 H is faulty
(A61/3091: heating circuit 1, ..., A68/3098: heating
circuit 8).
▶ Replace CR 10 H.
CR 10 H in heating circuit 1 incorrectly configured.
▶ If a higher-level user interface (e.g. CW 400) is installed,
set A.1 = Fb (remote control).
▶ If no higher-level user interface and only one heating circuit
is installed, set A.1 = CO (controller).
Sensor for relative humidity in the remote control is faulty
(A21/3141: heating/cooling circuit 1, ..., A24/3144: heating/
cooling circuit 4).
▶ Replace the faulty CR 10 H.
BUS signal from the higher-level user interface for remote
control is missing (A22: heating circuit 2, ..., A28: heating
circuit 8).
▶ Install the higher-level user interface (e.g. CW 400).
▶ Establish the BUS connection.
Troubleshooting
29