Invacare® SB® 755
5 Troubleshooting
5.1 Troubleshooting electrical system
Symptom
Possible cause
Remedy
Mains are not connected
Connect mains
Fuse in the control unit is blown
* Replace the control unit
Mains indicator does not light up
Control unit is defective
* Replace the control unit
Motor plug is not fully inserted into
the control unit.
Insert the motor plug properly into the
control unit
The motor is defective.
* Replace the motor
Motor cable is damaged.
* Replace the cable
Mains indicator lights up, but the
motor is not running. The relay in the
control unit makes a clicking noise.
Control unit is defective
* Replace the control unit
Control unit is defective
* Replace the control unit
Mains indicator lights up, but the
motor is not running. No relay sound
is heard from the control unit.
Hand control is defective
* Replace the hand control
Control unit is defective
* Replace the control unit
Control unit is in order except for one
direction on one channel.
Hand control is defective
* Replace the hand control
Motor is running, but the piston rod
does not move.
The motor cannot lift full load.
Motor noise, but no movement of
piston rod.
Piston rod operates inwards and not
outwards.
Motor is damaged
* Replace the motor
* Service and maintenance of the bed must only be performed by personnel who have received the necessary instruction
or training.
Risk of personal injury and damage to the product.
– The bed must be unplugged from the main power source before opening or repairing electrical parts.
WARNING!
Risk of personal injury and damage to the product.
– The bed must be unplugged from the main power source before opening or repairing electrical parts.
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1577126-H
