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LF2020/LF2090 Sit-To-Stand Patient Lift Owner’s Manual 15
TROUBLESHOOTING
Symptom Possible Cause Action
Control box is not responding
and relay is not clicking
Batteries discharged
Battery charger defective
Batteries defective
Hand control defective
Charge batteries
Replace battery charger
Replace batteries
Replace hand control
Actuator does not run,
but relay is clicking
Actuator plug not properly
seated
Actuator defective
Control box defective
Push actuator plug firmly into
control box
Replace actuator
Replace control box
Actuator goes up or down, but
not both
Hand control defective
Control box defective
Replace hand control
Replace control box
Cannot lift patient up and
battery indicator shows no
GREEN light
Batteries discharged Charge the batteries
Lift does not work and the battery
indicator shows full charge
Check the connection between the
actuator and the control box
Check connection between Pendant
& control box
Lift does not work and the
battery indicator shows no light
Make sure the emergency stop
button is released
Check the connection of the
batteries in control box
Stop-and-Run while lifting or
lowering patient
Check socket for pendant plug-in
Check pendant cable
Battery Indicator shows no light
when charger is connected to
power supply
Check the emergency stop button is
released.
Check charger plug for damage.
Check charger cable for damage.
Lift does not work. Battery
indicator shows full charge.
Notice “click” sound from control
box when UP or DOWN button on
hand control was pressed.
Actuator problem.
Warning: If you experience a problem with your lift and are unable to
service it yourself, contact your Graham-Field Health Products dealer.