Frymaster OCF30E Service & Parts Manual page 26

Problem
3000 display shows
TEMP PROBE
FAILURE.
3000 display shows
PROBE FAILURE
with alarm sounding.
Controller will not go
into program mode or
some buttons do not
actuate.
3000 display shows HI
2 BAD.
3000 display shows
HEATING
FAILURE with
alarm sounding.
Heating indicator is
on, but fryer is not
heating.
3000 display shows
HEATING
FAILURE and alarm
sounds, but fryer
operates normally
(false alarm).
3000 display shows
CLOSE DRAIN
VALVE.
3000 display shows
software for only 3000
or ATO board.
3000 display shows
ERROR RM
SDCRD
3000 display shows
CALL TECH
Probable Causes
Problem with the temperature measuring
circuitry including the probe.
Damaged controller wiring harness or
connector.
Failed controller.
Controller in high-limit test mode.
Failed controller, failed interface board or
open high limit thermostat.
Failed controller.
Drain valve is open or switch is out of
adjustment or failed.
Loose or damaged harness
Defective SD Card
Typically shown during software update.
Also may be that parameter data has been
corrupted or lost.
This indicates a problem within the
temperature probe circuitry. Check
resistance of probe, if faulty replace
probe.
Swap the controller wiring harness with
one known to be good. If problem is
corrected replace harness.
Replace controller
This is displayed only during a test of
the high-limit circuit and indicates that
the high-limit has failed.
Check high limit thermostat, interface
board and controller.
Replace controller.
Ensure all drain valves are completely
closed and that microswitches are
adjusted and working.
Check that all harnesses between 3000's
and ATO are secure and no pins are
pushed out or broken.
Replace card with another card.
Press the FILTER button to bypass and
continue.
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Corrective Action