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6 Troubleshooting
6.1 Troubleshooting electrical system
WARNING!
Risk of personal injury and damage to the product.
– The wheelchair must be unplugged from the main power source before opening or repairing electrical parts.
Symptom
Mains indicator does not light up
Mains indicator lights up, but the
motor is not running. The relay in the
control unit makes a clicking noise
Mains indicator lights up, but the
motor is not running. No relay sound
is heard from the control unit
Control unit is in order except for one
direction on one channel
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
1653396-B
Possible cause
Mains are not connected
Fuse in the control unit is blown
Control unit is defective
Motor plug is not fully inserted into
the control unit
The motor is defective
Motor cable is damaged
Control unit is defective
Control unit is defective
Hand control is defective
Control unit is defective
Hand control is defective
Motor is damaged
Remedy
Connect mains
Replace the control unit
Replace the control unit
Insert the motor plug properly into the
control unit
Replace the motor
Replace the cable
Replace the control unit
Replace the control unit
Replace the hand control
Replace the control unit
Replace the hand control
Replace the motor
Troubleshooting
27
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