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Error 7
(Refrigeration Error)
Error must be reset using
the Held Errors parameter
in the Clear Functions
section of the Service menu.
Faulty feedback or refrigeration
relay.
Verify that there are no wiring problems first then replace the
feedback (SW3) and refrigeration (SW2) relays.
Faulty controller (rare). Input (from feedback relay SW2) problem on the controller. This
is not common.
Error 8
(Probe Failure)
Faulty temperature probe. Replace the temperature probe. (Use the Adjust. Temp
parameter in the Service menu to view the live probe readout.
(Do not use the Up or Down arrows, they will change the
readout.)
DV Power Low Low DC voltage detected. If it persists, replace power supply.
NV Data Lost Checksum error. The controller
has detected invalid data at
start-up. (It is normal to see this
error the first time a Dispenser
is powered up after the program
software chip has been
replaced.)
Press the OK button or cycle power. This error is normally only
seen when a new controller and/or processor are installed.
If the error persists, verify that the software chip is securely
attached to the main controller. Cycle power.
If reseating the software chip and cycling power does not
eliminate the error, the controller and chip will need to be
replaced.
No Display On/Off switch off or tripped. Verify On/Off switch is on and illuminated. If not check switch,
power cord, or check for a short.
Display board connector is not
attached to the board.
Detach and reconnect the white 6-wire harness at the display
PCB and the main controller.
Faulty display PCB. If the items listed above are correct and 24V power is available to
the display PCB, then suspect the display PCB.
Unable to make a basket
load size selection
(the drum does not turn)
Calibration has been lost (the
load size indicator light does
not remain lit after being
pressed).
Reset Dispenser parameters (defaults) using the Parameter
function in the Clear Functions section of the Service menu
then calibrate the Dispenser. See below or manual for calibration
instructions.
Faulty keypad. If only a few or one button is not functioning, suspect the keypad.
Verify indicator light is illuminating.
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