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