56QB2000 9.2022 vers 1.0
ERROR CODE MESSAGES
VMC Errors
Error Message Description Possible Solutions
VMC Settings Reset VMC has been reset to factory
default.
If a software upgrade has just
been performed, the VMC has
been reset to default settings.
Change your prices and other
settings as required. Cycle
power and verify your changes
and any error messages.
VMC Door Switch Door switch is seen as open for
greater than the allowed time.
Check the door switch for
correct operation. Check door
wire harness.
VMC Scale Factor Thereisaconictwithoneormore
MDB setting from the installed
MDB devices.
Review manuals and settings
for installed MDB devices
to make sure they are
compatible.
VMC Selection SW A keypad selection button is stuck
in the depressed position.
Determine reason why keypad
button is stuck and repair.
VMC Low AC The incoming AC power is lower
than required to properly run your
vending machine.
Determine why voltage is low.
Remove any voltage reducing
devicesnotauthorized
by the vending machine
manufacturer.
VMC RAM Checksum A RAM checksum error indicates
that accounting data or a VMC
setting was in error. The VMC will
use a backup copy of the data
where possible.
Check the VMC settings
and accountability data for
correctness. Cycle power
to the vending machine and
recheck error messages.
Motor Errors
Error Message Description Possible Solutions
Motor [Number] Open The motor indicated or harness to
that motor has an open electrical
connection.
Check the motor and motor
harness for open connections.
Test vend motor. Replace if
necessary.
Motor [Number] Short The motor or harness has an
electrical short.
Check motor and motor
harness for short. Replace if
necessary.
Motor [Number] Home Sns The motor home switch was not
detected while the motor was in
operation. This may also indicate a
motor jam condition.
Check motor type service
mode setting, motor, motor
switch and then spiral for
blockage. Test vend selection
motor if necessary.