Specifications

1-13
1.10.1 ATO (Automatic Top-off) Troubleshooting
Problem Probable Causes Corrective Action
Frypots won’t top
off.
A. Probe temperature lower than
setpoint.
B. Oil is too cold.
C. ATO board power loss
D. Failed solenoid.
E. ATO pump failed or over
tightened.
F. Failed transformer/harness.
G. Failed ATO board.
A. Check to see that fryer is
heating. Fryer temperature must
be at setpoint. Check probe
resistance. If probe is bad,
replace the probe.
B. Ensure that the oil in the JIB is
above 70°F (21°C).
C. Power to the ATO board has
been cut off. Restore power to
the board and cycle ALL
computers off and on to
readdress system.
D. Check solenoid to see if
functioning properly.
E. If the solenoid is working, ensure
that the screws on the bottom of
the pump are not too tight.
Loosen the screws. If loosening
the screws doesn’t fix the
problem, replace the pump.
F. Ensure transformer in ATO box
is functioning properly. Check
power from transformer to ATO
board. Ensure all harnesses are
plugged securely into place.
G. Check for proper voltages using
the pin position chart found on
page 1-14. If ATO found
defective, replace ATO board.
The yellow JIB low
light won’t
illuminate.
A. Power in the component box is not
present.
B. Failed transformer.
C. Loose wire connection
A. Ensure power is present in the
component box.
B. If power is present in component
box, check the transformer for
correct voltage.
C. Ensure the yellow LED is
securely attached to plug J6 on
the ATO board.
One vat tops off but
other vats fail to top
off.
A. Failed solenoid
B. Loose wire connection.
A. Check power to the pump. A hot
pump suggests a failed solenoid.
B. Ensure all wiring harnesses are
securely connected to ATO
board and solenoids.
Incorrect vat tops
off.
A. Wired incorrectly.
B. Flexlines connected to wrong vat.
A. Check wiring.
B. Switch flexlines to correct vat.
Frypot tops off cold.
Incorrect setpoint Ensure setpoint is correct.