20
Troubleshooting
Problem
Possible Cause
Corrective Action
Cannot lift patient up and
battery indicator light is off.
Battery not connected to control box.
The fuse has blown.
Control box defective.
Charge the battery.
Reconnect battery to control box.
Replace fuse, if the system is prepared
for external fuse replacement, or send
the system to repair.
Replace control box.
Power indicator lights up and
battery shows charge, but lift
actuator does not run.
Hand pendant connection to control
box is loose.
Lift actuator connection to control box
is loose.
Control box defective.
Hand pendant defective.
Check connection between hand
pendant and control box
Check connection between lift actuator
and control box
Replace control box.
Replace hand pendant.
Power indicator lights up and
battery shows charge, but
base legs will not open/close
(powered base only)
Hand pendant connection to control
box is loose.
Leg actuator connection to control box
is loose.
Control box defective.
Hand pendant defective.
Check connection between hand
pendant and control box
Check connection between leg
actuator and control box
Replace control box.
Replace hand pendant.
Power indicator lights up, but
actuator does not run.
Relays in control box are
heard clicking.
Actuator plug not pushed into control
box properly.
Actuator defective.
Control box defective.
Push actuator plug into control box
securely.
Replace actuator.
Replace control box.
No relay noise is heard from
control box.
Handset plug not properly connected.
Emergency stop engaged.
Check all cord connections.
Deactivate emergency stop.
Control box will not turn on
with battery installed and no
relay clicking is heard.
Battery completely discharged.
Battery defective.
Charge battery.
Replace battery.
Control box working in one
direction on one channel.
Handset defective.
Control box defective.
Replace hand control.
Replace control box.
Noisy or grinding sound from
pivot locations.
Loss of lubrication.
Lubricate using light oil.
Boom/lift arm will not lower
from uppermost position.
Boom/lift arm requires a minimum
weight load to lower from the
uppermost height position.
Pull down slightly on the boom/ lifting
arm to lower.
Boom/lift arm will not lower
when mechanical emergency
release lever is actuated.
Boom/lift arm requires a minimum
200 lb. weight load to lower from
the uppermost height position when
emergency release is activated.
Pull down with full weight on the
boom/lift arm to lower.
Charge light not on while
battery is charging via the
control box
Emergency stop engaged.
Charging cable connection to control
box is loose.
Charging cable or plug is damaged.
Deactivate emergency stop.
Check charging cable connection to
control box.
Replace charging cable.