Service manual

T-4
06/2005
The V21 vendor provides self-diagnostics to aid you in the trouble shooting process.
Error codes are stored in the controller’s memory when a system error is sensed. These
codes can be accessed by following the procedure listed below.
The trouble shooting guide below contains information on how to solve problems with the
1) Vend system; 2) Refrigeration system; 3) Peripherals; 4) Selection switches; and 5)
Miscellaneous problems. The guide is divided into subsections with these headers.
Trouble Shooting Guide
1. When the door is opened, the machine goes into “Door Open Data Retrieval” mode.
2. If there are any error states, the display will show “Eror”. If there are no recorded
errors, the display will show “none”.
3. If “Eror” is displayed, press selection button two to enter the error diagnostics.
4. Pressing selection button one will scroll through the summary error codes (see
appendix for detailed list).
5. To get greater detail on a particular error code, press selection button two.
6. While displaying a detailed error code, using selection button one (up/down), the
controller shall cycle through all of the active detailed errors for the current summary
level error code.
7. If selection button two (Enter) is pressed and held for 2 seconds during the display of
any detailed error code, that detailed error code will be reset or cleared.
8. After clearing a displayed error code, either the next existing detailed error code,
summary level error code, or the “nonE” message will be displayed, respectively.
9. If selection button three (Return) is pressed, the controller shall return to the
summary level error code prompt.
Error DESCRIPTION OF ERROR
CODE
CHECKING METHOD Corrective Action
Vending Mechanism
CJnn Column jam - vend cycle for
column “nn” did not start or
complete.
Look in column to see if product is
jammed against gate or bucket.
Clear jam, complete a test vend
cycle.
Insure can clip is in correct position
(reference set-up diagram).
Correct clip position, complete
vend test.
Insure bottles are loaded as shown in
the Product Setup and Loading label.
Load bottles correctly
.
CSn Chute sensor error
. No test available. Replace chute sensor asembly.
Selection Switches
SSnn Bad Selection Switch - Selection
switch nn is actuated for more
than 15 seconds while in the
Customer Mode or Door Open
Sales
Test Mode.
Check the selection switch number
shown in the detailed error code “nn”
to see if: 1) the button is sticking; 2)
the switch is sticking/defective; 3) the
harness is wired wrong/shorted.
Try to correct the problem if one
of the three items is found. If you
can’t correct it, then replace the
component in question.
Space to Sales
Ucnn Column nn is not assigned to a
selection.
Access space-to-sales mode and go
to custom space-to-sales.
Change space-to-sales setting as
required. In some situations, it
may be quicker to completely reset
all space-to-sales.
Check all selections for the
column shown in the detailed error
description (nn).