V21 Parts & Service Manual
All V21 Identified Equipment
REV A – 10/2013
P/N: 1230476
ERROR
PROBABLE CAUSE
CORRECTIVE ACTION
No digital display; vendor
lights on.
Defective display or display harness.
Check display and display harness. Replace if
necessary.
Check for a flashing red light on control
board.
If no light, replace control board.
Vendor scrolls message on
display but does not accept
money.
Changer out of tune.
See “Tuning Changer”.
Defective changer.
Replace changer.
Defective control board.
Replace control board.
Vendor accepts money but
does not credit.
Defective changer.
Replace changer.
Defective control board.
Replace control board.
Vendor accepts and credits
money but does not vend
(does not indicate a sold-out).
Defective selection switch
Replace switch
Defective selection switch harness
Repair or replace harness.
Defective control board.
Replace control board.
Vendor delivers wrong
product.
Vendor loaded wrong.
Correct loading.
Vendor space-to-sales set wrong.
See “StS”.
Defective control board.
Replace control board.
Flashing 8888’s on the LED.
Chips on control board not seated properly.
Seat the chips down properly
Bad LED connection.
Replace LED and/or harness.
Defective control board.
Unplug everything from the board except the
LED and power in. If the 8888’s remain then
replace the control board.
Defective components.
If the 8888’s have disappeared from the
previous step, then begin plugging in
harnesses one at a time. Replace whatever
causes the 8888’s to reappear. Be sure to
power down each time you plug in a harness.
Solid 8888’s on the LED
Defective LED.
Replace LED and/or harness.
Defective control board.
Replace control board.
Refrigeration
Refrigeration unit will not run
even at the specific
temperature
No power or insufficient to refrigeration unit
Check power supply and connection to see if
each component gets the specific voltage of
power. Replace parts and line if necessary.
Defective temperature sensor
Replace temperature sensor
Defective relay
Replace the refrigeration relay
Defective control board
Replace board
Unit will only run in the
compressor test mode.
(Located under tEST)
Defective door switch.
Open and close the door to make sure lights
and fan come on. If not, then check the door
switch.
Defective temperature sensor
Follow the same steps detailed above about
the temperature sensor.
Wait the 3 minute delay once the door is
closed
Wait to see if unit comes on.
Defective control board
If unit still does not come on, then replace the
control board
Unit will not run even in the
compressor test mode.
**NOTE: Leave the compressor
test mode on in order to check
for voltage.
Defective door switch.
Upon opening the door, the lights and
condenser fan motors should shut off. If they
don’t replace the door switch.
Defective control board
Replace the board.
Refrigeration unit runs
constantly.
Defective door switch.
Upon opening the door, the lights and
compressor should shut off. If they don’t
replace the door switch.
Defective control board
Replace the board.
Defective relay
Replace the refrigeration relay
Condenser fan motor doesn’t
run.
Defective condenser fan motor
Replace the motor
Bad connection
Check the connection and lines
Defective relay
Replace the condenser motor relay
V21 T
roubleshooting Chameleon / Trade / HV3 | T1-9
