Ⅳ.Troubleshooting and Solutions
7
Power Supply Failure and Battery Failure
Problem Solution
Lithium battery over-current
protection cutting power
supply off
Connect the battery charger to the joystick control panel to re-
activate lithium battery
Poor battery connection Pull out the batteries and re-insert the batteries until a click
sound is heard
Faulty 5-pin connector
Use and set the multimeter to DC voltmeter mode, to measure
the voltage of the 5 – pin connector. If the voltage reading is
below the range of 23 volts, replace the 5-pin connector
Joystick Control Panel:
Faulty 4-pin cable
Use and set a multimeter to Ωresistance mode and follow the
circuit diagram. If open circuit or short circuit is found, replace
the faulty 4-pin cable
Battery casing deformed and
reduced battery life
Deformed casing of the Lithium battery is sign of the battery
reaching the end of its service life. Failing to charge the battery
regularly when the power is low will significantly reduce the
battery life. Please replace batteries immediately
Joystick Control Panel Flashing LED light Diagnostic Indicator
Sign Problem Solution
Battery is running low Re-charge or replace both batteries immediately
Joystick cannot deliver
signals to the control module
Inspect all cables and ensure connectors are firmly
connected or replace the joystick
Batteries are being charged.
An electronic drive locking
device is engaged to prevent
the chair from operating
Disconnect the 3-pin charger cable from the
Joystick Control Panel
Brushless motors fail to
move
a) Inspect all control cables are firmly connected.
b) Inspect all control cables to see if there are any
open or short circuits by using a multimeter.
Electromagnetic brakes
disengaged
Push the electromagnetic brake lever to the “Lock”
position