Troubleshooting; Error Codes - Stoelting F231 Service Manual

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7.1 ERROR CODES

When the machine experiences a problem, one of the
following error codes will be displayed on the control
panel. Each error code directs you to the system location
of the malfunction.
ERROR CODE MALFUNCTION
2 High Torque
3 Run Time
4 Clean
5 Freezing Cylinder Sensor
6 Hopper Sensor (single hopper machines)
7 Drive Motor
8 Cab Sensor
9 High Pressure Cutout
10 Ambient Sensor
11 Prime (cab units only)
12 Left Storage Sensor
13 Right Storage Sensor
To return the machine to normal operation, any error caus-
ing condition must be corrected and the freezing cylinder
must be turned off and on again using the On/Off Left or
On/Off Right button.

7.2 TROUBLESHOOTING

ERROR CODE 2 - HIGH TORQUE
If the control panel displays a High Torque Error
(E2), the drive motor is running at a high load for
10 or more seconds. Very low and/or fl uctuating
supply voltages typically cause this error. The error
can also be caused by faulty motor or starting
components which could produce a high amp
draw.
ERROR CODE 3 - RUN TIME
The Run Time Error (E3) occurs when the
compressor runs continuously for an extended
period. This error could happen if the cutout
parameter is not attained. This error is generally
caused by very low mix levels in the hopper or
from product breakdown. Another common cause
results from a restriction preventing mix from
entering the freezing cylinder. Check the mix on
the affected freezing cylinder. If the level mix is
low, add mix. If there is a possibility that the mix
is broken down, clean and sanitize the machine
and replace the mix with fresh product.
SECTION 7
TROUBLESHOOTING
Ice crystals in the hopper can clog the mix
inlet regulator and prevent mix from entering
the freezing cylinder. Thoroughly thaw mix per
manufacturer's recommendations. To check for
ice crystals, pour a small amount of product from
the hopper through a clean and sanitized sieve
or strainer. If ice crystals are in the mix, check
the temperature of the walk-in cooler where the
mix is stored or the temperature of the machine's
hopper. If the hopper is below 34°F (1°C), adjust
the temperature by raising the Storage Cutout
value in the Storage Settings menu.
The Run Time Error may also occur if airfl ow within
the machine has reduced or stopped. Check the
sides and top of the machine for anything that
would restrict airfl ow. Check the condenser fi lter
and clean if necessary. Check the evaporator for
frost that could restrict airfl ow.
The compressor will run continuously if a solenoid
valve fails to open. This could be due to loose
wiring, magnetic coil failure, a stuck valve or a
faulty control board.
After the cause of the problem is found and
remedied press the On/Off button for the cylinder
to turn it off then back on.
ERROR CODE 4 - CLEAN
If the machine is left in the Clean Mode for more
than 20 minutes, the control panel will display a
Clean Error (04). This condition does not refl ect a
problem with the machine itself. The Clean Error
has been programmed into the controller as a
safeguard to protect the machine from potential
damage caused by the machine being accidentally
left in "Clean Mode". To clear the Clean Error,
press the On/Off button for the cylinder to turn it
off then back on.
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