Manual

1/17/07
30
IS THE LED
ACTIVE UPONM
POWER UP? after
10 second delay
NO: Is the unit
receiving power?
Verify w/ voltmeter
YES:
Number of LED
Blinks?
3 BLINKS: ** dual
motor failure. Call
for replacement
parts
SOLID LED: no
blinks – Turn No
Movement Switch off
– proceed
to beginning
4 BLINKS:
Does the lift move?
6 BLINKS: Safety
switch triggered –
call DDI for
instructions
5 BLINKS: Low AC
voltage. Verify low
line voltage
2 BLINKS: Normal –
unit is ready to use
YES:
Is the slot sensor
wheel damaged or
unplugged?
7 BLINKS: Safety
switch is triggered –
see manual for
override process
YES: Turn lift off,
restore power, turn
lift of and proceed to
beginning
NO: Does the lift
make a click of hum
sound?
YES: Is the motor
connector plugged
into control box?
YES: Plug in the
slot. Call DDI for
replacement parts
NO: Call DDI for
replacement control
box
NO: Call DDI for
replacement control
box
NO:
Hook up power –
proceed to
beginning
YES:
Are the circuit
breakers tripped?
NO: Plug motor into
control box –
proceed to
beginnin
g
YES: Release or
jumper past the
switch, rest power,
proceed to
beginning
YES: If the lift has any
mechanical problems,
call DDI
NO: Call DDI for brake
release adjustments –
proceed to beginning
NO: Call DDI for
replacement
control box
YES: Does the lift
travel upward?
Call DDI
NO: Is the remote
control connected?
YES: Reset breakers
– proceed to
beginning
NO: Correct wiring
to match schematic
YES: Verify wiring
then call DDI for
replacement control
box
NO: Are the safety
switches on the top
frame engaged?
YES: Is the brake
releasing properly?
Indicated by click
sound
NO: Does the lift
have any
mechanical
problems?
** 2004 or earlier is non-
volatile memory corrupted
Troubleshooting Chart