Problem Possible causes Solution
Continuous alarm
sounds during bat-
tery mode
• Battery capacity deple-
ted
• Connect bed to the mains supply to re-
charge the battery as soon as possible
Operation with suf-
ficiently charged
battery only possi-
ble for a short time
• Limit of battery’s service
life reached
• Replace the battery. Inform your operator if
repairs are necessary
Operation is not
possible despite
proper power sup-
ply
• Control unit has shut
down due to overheat-
ing
• The control unit has de-
tected a fault and for
safety reasons has
locked the adjusting
functions
• Control unit defective
• Handset faulty
• Drive connecting cable
defective
• Observe max. duty cycle: Intermittent duty
2 min ON/18 min OFF; replace the control
unit.
• Perform RESET (see Part B: Control unit –
Reset » 62)
• Replace the control unit. Inform your oper-
ator if repairs are necessary
• Replace the handset with a new one
• Replace connecting cable
Manual CPR re-
lease of backrest
(optional accesso-
ry) is not possible
• Bowden cable is too
loose or not attached
• Bowden cable is kinked
• Readjust at the release lever or attach
properly
• Install new Bowden cable.
• Inform your operator if repairs are neces-
sary
drive runs for a
brief time only,
then stops
• Drive overloaded
• Structural obstructions
in the way of bed adjust-
ment
• Remove the overload in the bed, retest
• Remove obstructions; move bed away
from obstructions (e.g. window sills, slant-
ing ceilings)
Control partly not
functioning
• One or more motors are
not connected properly/
electrical plug connec-
tions have come loose
• There is a serious prob-
lem with the control unit
For safety reasons, all
functions are locked
• Check electrical connection of all motors/
plug connections;
• Back rest, thigh rest and lift all function in-
dependently
Troubleshooting
Part C: Care staff and residents 33
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