13
Model C302 Important:To the Operator
060823
Operator Menu Timeout
If the display is left in the operator menu or any of
the operator menu selections, except for Current
Conditions, the display will return to the system
mode screen 60 seconds after the last keypress.
The Current Conditions screen will be displayed until
manually changed.
Finding Current Fault Conditions
Screen B is FAULT DESCRIPTION. The fault
description will indicate if there is a fault in one of the
freezing cylinders. When the actual fault is
corrected, the warning tone will stop. Only “BRL
NOT COOLING” requires pressing the OF F (<- -)
key to clear the fault message and the warning tone.

Fault Messages

Beater Overload Beateris out on overload.
Chk Refrig Sys Psi Out on compressor high
pressure cut-out.
Thermistor Short Shorted thermistor probe.
Thermistor Open Open thermistor probe.
H2O Pressure Low Water pressure is low.
CO2 Pressure Low CO2pressure is low.
Syrup Pressure Low Syrup is no longer present.
BRLTemp2High Freezing cylinder
temperature is above 120_F
(49_C).
BRL Not Cooling Freezing cylinder is not
cooling after 5 minutes.
No Fault Found No fault conditions are
apparent.
The following are explanations of the possible faults
and the display screens. Lines 2 and 3 indicate the
faults found in freezing cylinders 1 and 2
respectively.
1. NO FAULT FOUND - No fault conditions are
apparent.
FAULT DESCRIPTION
L: NO FAULT FOUND
R: NOFAULT FOUND
CLR +++ SEL
2. BEATER OVERLOAD - Beater motor is out on
overload. When this fault occurs, the affected
side of the machine automatically turns off. T he
fault clears when the condition is corrected.
FAULT DESCRIPTION
L: BEATER OVERLOAD
R: BEATER OVERLOAD
CLR +++ SEL
3. CHK REFRIG SYS PSI - Compressor is out on
high head pressure. When this fault occurs, the
machine automatically turns off. The fault
clears when the condition is corrected.
FAULT DESCRIPTION
L: CHKREFRIG SYS PSI
R: CHK REFRIG SYS PSI
CLR +++ SEL
4. THERMISTOR SHORT - One or both of the
barrel (freezing cylinder) thermistor probes are
faulty.
FAULT DESCRIPTION
L: THERMISTOR SHORT
R: NOFAULT FOUND
CLR +++ SEL
5. THERMISTOR OPEN - One or both of the
barrel (freezing cylinder) thermistor probes are
faulty.
FAULT DESCRIPTION
L: THERMISTOROPEN
R: NOFAULT FOUND
CLR +++ SEL