Problem Possible causes Rectification
Then leave the bed connected
to the mains for a further 10-12
hours until charging is com-
plete
Constant signal tone sounds
during adjustment
Battery capacity depleted Connect bed to the mains sup-
ply to recharge the battery as
soon as possible
Operation only possible for a
short time despite sufficiently
charged battery
End of battery life reached Exchange the control unit; in-
form your operator about any
necessary repairs
Operation is not possible de-
spite proper power supply
Control unit has shut down
temporarily due to overheating
Observe max. duty cycle: Inter-
mittent duty 2 min ON/18 min
OFF Let control unit cool down
for about 20 minutes, then test
it again
Control unit defective Exchange the control unit; in-
form your operator about any
necessary repairs
Manual CPR release of back-
rest is not possible
Bowden cables are too loose
or not attached
Readjust at the release lever or
secure them
Bowden cable is kinked Insert new Bowden cables; in-
form your operator about any
necessary repairs
Mains control lamp in control
unit does not light up
No power supply to socket Use an electric socket that is
working properly
Mains cable damaged Replace the mains cable
Fuses in control unit defective Exchange the control unit; in-
form your operator about any
necessary repairs
Drive runs for a brief time only,
then stops; can then only be
activated in the opposite direc-
tion.
Drive overloaded Remove the overload (briefly
operate drive in the opposite
direction), then retest
One or more motors are not
connected
Connect all motors
Control is not functioning; lock-
ing LEDs flashing on control
There is a problem with the
control unit. For safety rea-
sons, all functions are locked.
Unlock the control unit; if fault
occurs again: Have drive sys-
Troubleshooting
Instruction Manual 130
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