V21 Parts & Service Manual
All V21 Identified Equipment
REV A – 10/2013
P/N: 1230476
ERROR
PROBABLE CAUSE
CORRECTIVE ACTION
Bill validator takes a bill but does
not establish credit.
Defective validator harness (credit not
getting from validator to control board
through the harness).
Make sure that the validator and harnessing
is correct for your style of validator and it is
plugged in and wired properly.
Defective validator.
Replace/test validator.
Defective control board.
Replace/test control board.
Bill validator takes a bill and credits
but not erasing credit.
Defective bill validator.
Replace validator and test acceptance and
erasure of credit.
Defective control board.
Replace/test control board for erasure of
credit.
Both vend sensors are defective.
Replace vend sensor.
Validator takes a bill and allows payback
of coins without a selection.
Configurations not set properly in control
board.
Access vendor configuration mode and check
the “Force Vend” setting.
VENDING PROBLEMS
Multiple vending (not canceling
credit).
If multiple vending is from all selections,
delivery sensor is cut, improperly
Replace sensors and test.
NOTE: If both sensors are not present or
are defective, the V21 will allow up to four
products from each column to be vended
before the column is determined to be
sold out.
Replace sensors and test.
Depth setting on partition not adjusted
correctly.
Move can clip to proper position (refer to
loading diagram on machine).
Mechanical Error.
Check for correct operation of the motor,
gate link, bucket and gate.
Wrong product vending upon
selection.
Misload by vendor loader.
Ensure that all product within each column is
the same.
Space-to sales not set properly.
Look for StS error. Check or reset space-to-
sales.
Miswired selection.
Check the wiring from the controller to the
selection switches. Test selection switches.
No vend upon selection.
Delivery sensor is malfunctioning or a
column is jammed or sold out.
Check to see if the delivery chute sensor LED
is constantly on. If so, replace vend sensor.
Defective controller board.
Unplug the sensors connection from the
control board. Watch LED. If the sensor LED
stays on, replace the defective control board.
Dry Vend (No refund).
Premature vend detection.
Tap on chute and check
for a green flashing
light on the control board. If no light is
flashing or light is constantly on, replace
Completely sold out.
Check to see if blocking is enabled.
Change time or turn off blocking.
Check if vend sensor is unplugged.
Plug back in.
Space to sales has been cleared.
Reinitiate space to sales.
MISCELLANEOUS PROBLEMS
Display shows sold out
immediately upon pressing
selection button of full column
(sold out not clearing).
Door switch wired incorrectly or
cut/pinched.
Manually press door switch. If lights and fan
don’t come on, check wiring or replace door
switch.
Control board.
If door switch is replaced and still reading
sold out, replace control board.
Vendor appears dead; no digital
display and no lights.
Defective main harness or secondary
power harness to the transformer.
Check transformer.
V21 T
roubleshooting Chameleon / Trade / HV3 | T1-8
