Graham Field LF2090, LF2020 user manual Troubleshooting, Symptom Possible Cause Action

8TROUBLESHOOTING

The following list of encountered problems and their solutions will assist you in determining what may be causing your Lumex lift not to function as designed. If you have a problem occurring which is not listed below, please contact your distributor or Graham-Field Technical Support for help.

Do not attempt to repair components or parts on your lift, as this may invalidate your warranty or cause further problems that may result in patient injury. Stop using your lift immediately if it is not functioning correctly or any warning beeps are heard.

SYMPTOM	POSSIBLE CAUSE	ACTION
The actuator is stalled and a	Actuator plug is not seated	Firmly plug actuator plug into
clicking sound is audible	properly into control box	control box
	Actuator is defective or at end of	Replace actuator if control box is
	its life cycle	good
	Control box is defective	Replace control box if bad; replace
		control box if pendant is good;
		replace pendant if bad
The actuator will either go up or	Hand pendant or control box	Replace control box if pendant is
down, but not both	defective	good
		Replace pendant if it is bad
The actuator makes a grinding	The internal gear is stripped, likely	Stop using the lift immediately!
sound while lifting, but works fine	due to overloading	Repair or replace the actuator
without a load
The actuator stops and starts	Bad batteries	Check battery indicator; confirm
during lifting or lowering		if lights drop quickly to red light;
		replace batteries
The lift will not operate even though	Battery charger still plugged in	Unplug battery charger
battery indicator shows charge	Poor connection between control	Plug hand pendant firmly into
	box and pendant, or defective	control box, or replace pendant
	pendant	Plug actuator cord firmly into
	Poor connection between actuator	control box
	and control box
The lift will not operate and battery	Control box may be in OFF position	Turn the red emergency stop button
indicator has no lights illuminated	Internally, batteries may be loose	until it pops up to the ON position
	from their connections	Check inside control box to ensure
	Batteries are in need of being	batteries are connected
	charged	Use charger to charge batteries,
	Batteries are dead and won’t hold a	ensuring the red emergency stop
	new charge	button is in ON or UP position
		Replace the batteries
During charging, the battery	The red emergency stop button is	Turn the red emergency stop button
indicator is not illuminated and	in OFF or DOWN position	until it pops up to the ON position
won’t charge	The battery charger is defective or	Inspect the battery charger for
	at end of its life cycle	damage and replace if required
The battery indicator indicates need	The batteries are at end of life cycle	Replace the batteries
for frequent charging and/or lift
loses power
The lift will not operate, and there	The pendant is loose/defective or	Check battery indicator; replace
is no clicking sound or light when	at end of its life cycle	pendant if battery indicator shows
pendant is pressed		full charge

WARNING: If you experience a problem with your lift and are unable to solve it yourself, contact your Graham-Field provider.

LF2020-INS-LAB-RevC12 15