Frymaster LOV M3000 - Manual (Page 5)

LOV ™ Generation II Technical Reference
4
Problem Probable Causes Corrective Action
Frypots won’t top off.
A. Probe temperature lower than
setpoint.
B. Oil is too cold.
C. Bad Connection.
D. ATO board power loss.
E. Failed transformer/harness.
F. ATO pump failed.
G. Failed ATO board.
A. Check to see that fryer is heating.
Fryer temperature must be at
setpoint. Check ATO probe
resistance. If probe is bad, replace
the probe.
B. Ensure that the oil in the JIB is
above 70°F (21°C).
C. With the computer OFF, press
TEMP button and ensure the
ATO version appears. If not,
the connection between the AIF
and the ATO board may be bad.
Ensure the 6-pin CAN connectors
are tight between AIF (J4 and J5)
and ATO (J10) boards.
D. Power to the ATO board has been
cut off. Restore power to the board
and clear any service required
errors.
E. Ensure transformer in ATO box is
functioning properly. Check power
from transformer to ATO board.
Ensure all harnesses are plugged
securely into place.
F. Ensure pump is operational.
Check voltage to pump. Replace
the pump if defective.
G. Check for proper voltages using the
pin position charts found on pages
43-47. If ATO found defective,
replace ATO board and clear any
errors.
One vat tops off but other
vats fail to top off.
A. Loose wire connection.
B. Actuator issue.
A. Ensure all wiring harnesses are
securely connected to ATO board
and solenoids.
B. Check return actuator to ensure
actuator is functional.
Incorrect vat tops off.
A. Wired incorrectly.
B. Flexlines connected to wrong vat.
A. Check wiring.
B. Switch fl exlines to correct vat.
One vat doesn’t top off.
A. Filter error exists.
B. Actuator, pump, loose connection,
RTD or ATO issue.
A. Clear fi lter error properly. When
change filter pad YES/ change filter pad YES/
NO
NO is displayed, do NOT press
any button until the pan has been
removed for at least thirty seconds.
After thirty seconds have elapsed,
the computer returns to OFF or last
display.
B. Check actuator, ATO pump, wire
connections, RTD and ATO board.