V21 Parts & Service Manual
All V21 Identified Equipment
REV A – 10/2013
P/N: 1230476
ERROR
PROBABLE CAUSE
CORRECTIVE ACTION
Bill acceptor takes a
bill but does not
establish credit.
Defective acceptor harness (credit
not getting from acceptor to
control board through the
harness).
Make sure that the acceptor and harnessing is correct for your style of
acceptor and it is plugged in and wired properly.
Defective acceptor.
Replace/test acceptor.
Defective control board.
Replace/test control board.
Bill acceptor takes a
bill and credits but
not erasing credit.
Defective bill acceptor.
Replace acceptor 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.
Acceptor takes a bill
and allows payback of
coins without a
selection.
Controller c
onfigurations not set
properly.
Access vendor configuration mode and check the “Force
d Vend” setting.
VENDING PROBLEMS
Multiple vending
(not canceling
credit).
If multiple vending is from all
selections, delivery sensor is cut,
improperly grounded, or
defective.
Test vend sensor (green light on control board when the chute is hit).
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, lock 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 Space to Sales 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 sensors.
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.
V21 T
roubleshooting Chameleon / Trade / HV3 | T1-16
