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Troubleshooting
CR 10 H – 6720876740 (2017/08)
30
Table 3 Fault codes and sub-codes for the specialist
If further information required, see the service manual.
A61 1010 No communication via BUS connection EMS 2.
Check whether BUS cable was connected incorrectly.
Rectify wiring fault and switch the control unit off
and on again.
Check whether BUS cable is faulty. Switch the control unit
off and on again.
Repair the BUS cable or replace it.
Replace faulty user interface.
A61
...
A68
1081
...
1088
CR 10 H incorrectly configured (A61/1081: heating circuit
1, ..., A68/1088: heating circuit 8).
Set A.1 = Fb (remote control).
Ventilation on the CR 10 H is not set.
Set the ventilation.
A61
...
A68
3061
...
3068
CR 10 H incorrectly configured (A61/3061: heating circuit
1, ..., A68/3068: heating circuit 8).
For assistance, see Fault code A21.
Ventilation level is not displayed.
Press the selector, until the ventilation level appears.
Fill - Water pressure in the heating system is too low.
Top up the heating water (even without a specialist,
Technical documentation about the heat source).
FIL - Filter is dirty.
Change the filter.
Press to reset the filter running time in the FIL menu item.
Fault
code
Sub-
code
Possible cause and
remedy from the specialist
30


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