Acknowledge the fault indication on the LCD handset after the fault has been rectified
(see RESET: Acknowledging faults on LCD handset » 134). This will normally be fol-
lowed by the necessary control RESET and, in the case of faults in the position sensors
of the drives, additionally the reprogramming of the LCD handset in a guided step-by-step
procedure.
A
2
B
1
B
2
C
1
C
2
D
1
D
2
Signal
when
button
pressed
Error Solution
lying on handset, sol-
id objects on the linen
holder)
3.
Loose connection/
moisture ingress in an
OpenBus
®
plug con-
nection (MJB; control
unit; under bed light)
handset » 134; RESET: Ac-
knowledge faults on control
box » 140)
3.
Check all internal plug con-
nections/components; replace
defective parts:
•
O-seal ring present/correctly
inserted?
•
Plug fully inserted as far as it
will go and secured against
loosening with retaining clips
engaged?
+ perform RESET on control unit
(→ chapter RESET: Acknowledg-
ing faults on LCD hand-
set » 134; RESET: Acknowl-
edge faults on control
box » 140)
Internal control fault (very
rare)
Replace control → chapter Re-
place the control unit » 122
Troubleshooting
139 Instruction Manual
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