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5-4
5.2.1 Control and Heating Problems (cont.)
Problem
Probable Causes Corrective Action
Fryer heats until high-
limit trips without
heat indicator ON.
Contactor or controller has failed.
Call FASC.
Fryer stops heating
with heat indicator
ON.
The high-limit thermostat or contactor
has failed.
The fact that the heat indicator is ON
indicates that the controller is
functioning properly and is calling for
heat. The high-limit thermostat
functions as a normally closed switch.
If the thermostat fails, the "switch"
opens and power to the elements is
shut off. If the contactor fails to close,
no power is supplied to the elements.
Determining which component has
failed is beyond the scope of operator
troubleshooting. Call FASC.
5.2.2 Error Messages and Display Problems
Problem Probable Causes Corrective Action
CM III.5 display is in
wrong temperature
scale (Fahrenheit or
Celsius).
Incorrect display option programmed.
CM III.5 computers may be
programmed to display in either
Fahrenheit or Celsius. Refer to the
separate Frymaster Fryer Controllers
User's Manual for instructions on
changing the display.
CM III.5
or
Digital Controller
display shows
.
Open drain valve or problem with
latching circuitry.
Verify that the drain valve is fully
closed. The fryer will not function if
the drain valve is not fully closed. If
the drain valve is fully closed, the
problem is within the latching
circuitry and is beyond the scope of
operator troubleshooting. Call FASC.