H.C Duke & Son Electro-Freeze Genesis Series Operator’s Manual With Illustrated Parts List page 95

ELECTRO FREEZE Soft Serve Model GEN-2080
18 VQM Error Codes
Error Code Description/Action
Main P.C. Occurs if there is a
Board Heart- power loss to the Main
beat L.E.D not P.C. Board or a possible
blinking/ U.I. U.I. Issue
Not Energiz-
ing
If tested to ground relay coil will read 12 VDC to ground and then zero VDC when activated, if tested across
relay coil then it will read 0 VDC if sitting idle, and 12 VDC when activated.
If a Power Failure Occurs unit will log the change of state i.e. switching to night mode on re-start, when the
unit is powered back up. The Power Failure error will be displayed on the screen until the SELECT button is
pressed acknowledging the Failure. Once the SELECT button is pressed error will reset.
The Head Switch, Spigot Switch, Center Spigot Switch, Mix Low, and Mix Out Errors will all Auto Reset after
the problem has been rectified.
185240
(continued)
Probable Cause
1. Power Loss to Main
P.C. Board
2. Main P.C. Board Fuse
blown
3. Power Not being
supplied to U.I. Board
from main P.C. Board
4. Faulty wire
connection
Remedy
1. Check control transformer for main
24 VAC power supply to main P.C.
Board.
2. Remove fuse and ohm to check for
continuity, if none replace fuse. If once
fuse is replaced and power is restored,
the Main P.C. Board L.E.D. starts
blinking however the U.I. Board does
not energize then continue with this
troubleshooting chart
3. Remove communication wire from
U.I. Board, This cable connects the
U.I. Board to Main P.C. Board. Using
a meter set to DC voltage and power
to the Main P.C. Board on, test voltage
across both Black wires. If voltage
reads about 5.96 VDC then Main P.C.
Board and the communication cable
are working properly and the problem
lies with the U.I. Board
4. If 5.96 VDC is read on the black
wires but the U.I. Board does not
light up, the issue might lie with the
communication cable, and that it is
not making a good connection with
the U.I. Board. Check the connector
on the U.I. Board for damaged pins;
also check the communication cable
for loose wires in the cable connector
(Contact Electro Freeze Factory Tech
Support).
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