RVV Gen II KO Service and Parts Manual
48
SECTION 5: Troubleshooting
Test Diagnostics Routines Troubleshooting
The Test Diagnostics routines are designed to aid in troubleshooting the vender. To access these routines, follow these
steps:
1. Press the blue mode button on the VMC (Vender Main Controller) board.
2. Press <up> until the display shows
Test Modes
, then press <enter>.
3. Press <up> until the display shows
Test Diagnostics
, then press <enter>. The display will show
Perimeter Test
. The vender is now in the diagnostic test routine. To scroll through the subroutines
(
Perimeter Test
,
Delivery Test
,
Cup Test
,
Sensor Test
,
Motor / Encoder Test
),
press <up>.
Note: If the DMC does not support the diagnostics command or the vender is currently busy and cannot respond to
the diagnostics command, “
Unavailable
” will be displayed upon the initiation of the test. If the door is not in the
correct state for this test to be carried out, either “
DOOR MUST BE SHUT
” or “
DOOR MUST BE OPEN
” will
be displayed upon initiation of the test. If the test could not be carried out for any reason, the test must be reinitiated in
order to try again. The system does not auto-detect that the problem has been fixed.
Contents
I.
Perimeter Test
II.
Delivery Test
III.
Cup Test
IV.
Sensor Test
V.
Motor / Encoder Test
VI.
Production Test
VIII.
Multiple Home Test
I.
Perimeter Test
Pressing <enter> at
Perimeter Test
will cause the vender to move the cup around the perimeter of the vending
area once. The Perimeter Test allows service personnel to observe if there are any obstructions around the perimeter of
the vender that would inhibit vending.
Testing
will be displayed while this test is carried out.
Test Complete
will be displayed when the vender has completed this test. Pressing <exit> will terminate the test.
Note: The perimeter
test will only start if the door is CLOSED.
II.
Delivery Test
Pressing <enter> at
Delivery Test
will cause the vender to move the cup to the delivery position and attempt a
delivery. If no product is dispensed, the vender will attempt to deliver two more times. This allows service personnel to
observe if there are any obstructions around the delivery position of the vender that would inhibit vending.
Testing
will be displayed while this test is carried out.
Test Complete
will be displayed when the vender has completed
this test. Pressing <exit> will terminate the test.
Note:
The delivery test will only start if the door is CLOSED.
Possible problems:
A. Cup attempts to do a delivery test three times, never completes test, then stops short of delivery door or bangs
against side wall and shows
OUT OF SERVICE
on the display
B. Cup opens delivery port door, but the cup will not tilt to deliver product
The following areas of this vender contain voltage which can
cause serious injury or even death: the main power cord,
supplying 115-230 VAC to the evaporator, EMI filter, and
refrigeration system; the power line from the EMI filter to the
ballast and transformer; and the ballast, which can produce
upwards of 600 volts. Remove power from vender before
working in any of these areas.
