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TROUBLESHOOTING
52
of 90
Display reads vending but the elevator does not
move.
Check port door
switch.
Open and close
the port door.
Does the port
door close completely?
YES
Clear the
obstruction and
retest with service
door open.
NO
Is port door switch
properly secured?
Correct or replace
port frame and
retest.
Does elevator
function?
1
NO
Finished.
YES
Check harness
connection and
VMC.
Is harness
connected at VMC
YES
Replace port
door switch.
Connect
harness and
retest.
YES
NO
1
Open glass door
and depress the
P.I. Switch and
test vend one
selection.
Did elevator motor
run?
Close the door
and retest.
Did the elevator
motor move?
YES
Finished.YES
Did the elevator
make any noise?
NO
Did the elevator
belt try to run
backwards?
YES
Check the home sensor
switch connections.
YES
Check for obstructions
under the conveyor and
retest.
Replace elevator
motor harness and
retest.
NO
Does the elevator
run?
Finished.
Replace P.I.
switch and retest.
NO
Replace elelvator
motor and retest.
NO
Did elevator motor
run?
YES
Replace lower
limit switch
harness.
Did elevator run?
Finished.YES
Replace VMC
and retest.
NO
ELEVATOR ISSUES
(including upper / lower limit switches & port door)