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7-3
PROBLEM PROBABLE CAUSES CORRECTIVE ACTION
Heat indicator is on
and blower is
running, but burner
will not ignite.
Blown fuse on interface board or
ignition module.
Replace fuse.
7.2.2 Error Messages and Display Problems
Problem Probable Causes Corrective Action
CM7 display is in
wrong temperature
scale (Fahrenheit or
Celsius).
Incorrect display option programmed. See page 4-16 for instructions.
CM 7 display shows
IGNITION
FAILURE.
Open drain valve or problem with
latching circuitry.
Verify that the drain valve is fully
closed. If the problem continues
call your FASC.
CM7 display shows
hot-hi-1.
Frypot temperature is more than
410ºF (210ºC) or, in CE countries,
395ºF (202ºC).
This in an indication of a
malfunction in the temperature
control circuitry, including a
failure of the high-limit thermostat.
Shut the fryer down immediately
and call your FASC.
CM 7 display shows
HIGH temp.
Fryer temp is above setpoint.
Ensure setpoint is set correctly. If
problem persists call your FASC.
CM7 display shows
LOW TEMP.
Frypot temperature is between 180°F
(82°C) and 315°F (157°C).
This display is normal when the
fryer is first turned on and may
appear for a short while if a large
batch of frozen product is added to
the frypot. If the display never
goes out, the fryer is not heating.
Shut the fryer down and call your
FASC.
CM7 display shows
PROBE
FAILURE.
Problem with the temperature
measuring circuitry including the
probe.
Shut the fryer down and call your
FASC.
CM7 display shows
IGNITION
FAILURE.
Open drain valve, failed computer,
failed transformer, open high-limit
thermostat.
Verify that the drain valves are
fully closed. Using the ON/OFF
switch, turn the computer OFF and
then ON again. If this does not
correct the problem, call your
FASC.
CM 7 display shows
HOT-HI -1.
Frypot temperature is more than
410ºF (210ºC) or, in CE countries,
395ºF (202ºC).
Call your FASC.