Vendo VARI-PAK 450, Manual

Page: 106 / 113

T-6
07/2003
T-7
07/2003
Bill Validator Open Bill validator is open. Check that bill cashbox is closed
and in correct position.
If cashbox appears to be OK,
replace bill acceptor.
Bill Validator Sensor Bill validator sensor is
not functioning.
Check bill validator for
obstructions or dirt.
If no obstructions are
apparent, replace bill validator.
Card Reader
Card Reader
Communication
There is no card reader
communication for 5
seconds.
If card reader/bill acceptor is
being used, check for “rC’ or
“bC” errors.
If there is no “rC” or “bC” error:
1) Check changer harness.
2) Replace changer.
Turn power switch off. Wait at
least five seconds. Turn power
switch on.
If there is a “rC” or “bC” error:
3) Check control board MdB
harness.
Card Reader Most recent “non-
transient error” from the
card reader.
No test available. Refer to card reader manual
for corrective action.
Refrigeration
Temp Sensor The temperature
sensor is defective or
unplugged.
Check to see that temperature
sensor harness is plugged into
door harness at air dam area.
If the sensor is unplugged,
replug it.
Check for temperature sensor
connection J7 on control board
is plugged in.
Compressor System has failed to
decrease temperature
1° per hour while the
compressor is running.
Access relay mode (refer to
programming manual).
Check to see that the
refrigeration harness is
connected to the power
distribution panel. If they
are, refer to the refrigeration
troubleshooting flow chart on
the following pages.
Check refrigeration settings
(refer to refrigeration section of
programming manual).
Change settings as required.
Heater Heater system has failed
to increase temperature
1° per hour while heater
is on.
Heater circuit not properly wired. Check electrical connections.
Bad sensor on heater circuit.
Replace sensor.
Defective heating element. Replace heating element.
Miscellaneous Problems
Door Switch Outer door has been
open for more than one
hour.
Check the vendor’s door switch
to see if it’s sticking or miswired.
Replace the door switch, if
defective.
Ram Error Ram check sum for
service mode settings
stored in non-volatile
memory has been
corrupted.
No test available. If error shows up frequently,
replace the control board.
AC Low AC voltage to the
controller is less than
20Vrms for more than 30
seconds.
Check for low voltage at the wall
outlet at unit start-up.
Contact a qualified electrician.
Scale Scaling Factor error - one
of the credit peripherals
has introduced a
scaling factor that is
not compatible with the
current configuration.
Check the connections of
changer harness; make sure
changer is plugged in and
working.
Make corrections to harness
or replace the changer if
necessary.