Duke DQ GEN-102, Operator’S Manual With Illustrated Parts List

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Soft Serve Freezer Model GEN-102
15 VQM Error Codes
(continued)
Error Code Description/Action Probable Cause Remedy
CABINET
RFG
(cont.)
Occurs when cabinet
refrigeration system
run time exceeds 90
minutes
Action: Cylinder
refrigeration switches to
standby mode, cabinet
refrigeration is turned
off.
Reset Method: Main
Power Switch, once
the condition has been
rectified.
5. Faulty wire
connection
6. Restriction in System
i.e. Capillary tube, Filter
Drier
7.Faulty Thermistor
8. Compressor Control
Relay not activating
9. Compressor starting
components failure
10. Compressor failure/
reduced capacity
11. Moisture in System
5. Locate faulty connection (Wire
rubbed through, cut) and repair as
needed.
6. Locate restriction and repair as
needed.
7. Remove thermistor, check in ice
water and compare to thermistor curve
chart. If faulty replace, if thermistor
tests o.k. check wire harness
connections. If all connections are
sound possibility of control board
issue. (Contact H.C. Duke & Son
Factory Tech Support)
8. Check to see if Relay is receiving
power from Main P.C. board (12VDC),
Ohm relay control coil for proper
resistance. Replace relay as needed.
If no 12VDC is detected Contact H.C.
Duke & Son Factory Tech Support.
9. Check Compressor Starting
components and replace as needed.
10. Check Voltage to the unit to
ensure it is within specification,
Check wire connections to the unit
and compressor, Check compressor
contactor for proper operation,
and possible voltage drop, ohm
compressor windings to check
for a short and proper winding
resistance, check compressor
starting components for failure, allow
compressor protector to reset and
check for proper amp draw.
11. Recover refrigerant, change
filter drier, change compressor oil
(Contact H.C. Duke & Son for proper
compressor oil charge), Evacuate
system to a minimum of 200 microns
or less. Repeat if necessary