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6 • Remedying malfunctions
80116-938_V24392
2023-03
U/U-A error
Display on the unit: U or U-A, detecting module: UI
Error code Description Additional information Action
U 1 DCB communication time-
out.
It has taken too long for
the Data/Device Control
Block to receive a mes
-
sage from the SCM during
activation.
Restart the unit. If the
error occurs again, notify
Erbe Service.
U 48 Display brightness could
not be set.
Restart the unit. If the
error occurs again, notify
Erbe Service.
U 49 Volume could not be set. Restart the unit. If the
error occurs again, notify
Erbe Service.
U-A 7 Line voltage too low. Check supply input volt-
age and power cord. If the
error persists, notify Erbe
Service.
U-A 132 Program memory full. Delete unnecessary pro-
grams.
U-A 133 Remote control detected. Information, no fault con-
dition.
U-A 134 Remote control discon-
nected.
Information, no fault con-
dition.
U-A 135 Modification not possible. Information, no fault con-
dition.
U-A 136 Data transfer active. Information, no fault con-
dition.
U-A 137 The technical safety check
is due.
Perform a technical safety
check in accordance with
the manufacturer's speci
-
fications.
U-A 138 Assign activation type. Assign activation type.
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