Stoelting E131G, Service Manual

Page: 40 / 80

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3. When the cycle switch SW1 is placed in the )
position, the control will go through a self-test
sequence and the results will be displayed
a. OK-Passed all Checks
b. ERR-Error Condition
4. Error condition code display. The error condition
code directs you to the location of the
malfunction.
a. 01 Program Board
b. 02 Power Board
c. 03 Low Torque Error
d. 04 Clean Error
e. 05 Barrel Sensor
f. 06 Hopper Sensor
g. 07 Drive Motor
C. Board Mounted Selectors
There are three diodes which when removed from the
circuit cause changes in the control logic.
1. On/Off timers. This diode is removed from the
circuit for those soft serve freezers without
sensors for barrel or hopper temperature. In the
operating consistency mode, the freezer will
start at the end of the set off time. The freezer
will remain on until brought to consistency. After
the selected number of operating cycles, the
control will operate in idle mode strictly by On/
Off timing. If the diode is not removed from the
circuit, the On/Off timers function only during
the transition from normal operating set point
to idle (STB) temperature set point.
2. Celsius Display Select. Selection for display is
Fahrenheit and when removed from the circuit
is Celsius.
3. Consistency/Temperature Mode Select. A
removable diode is provided to change the
control from basic function of a consistency
control or a temperature control.
D. Calibration Function
The Cycle Mode Switch (SW1) programs the number of
cycles before the freezer enters the idle mode (1-9). The
calibration function is activated by placing the Cycle
Mode Switch in the “0” position. Place the On/Off switch
in the On position. The On Board pushbutton switch
(SW4 SET) is used to advance through the steps. The
following chart indicates the steps in calibrating the
control.
Figure 53. Membrane Switch Panel Display Board