Ato - Frymaster FOOTPRINT 8196345 Service & Parts Manual

1.13.1 ATO (Automatic Top-Off) Troubleshooting
Problem
The yellow JIB low
light won't illuminate.
Frypots won't top off.
One vat tops off but
other vats fail to top
off.
Incorrect vat tops off.
Probable Causes
A.
Power not present in the transformer
box.
B.
Failed transformer.
C.
Loose wire connection
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.
Failed solenoid
B.
Loose wire connection.
A.
Wired incorrectly.
B.
Flexlines connected to wrong vat.
Corrective Action
A.
Ensure power is present in the
transformer box.
B.
If power is present in transformer
box, check the transformer for
correct voltage.
C.
Ensure the yellow LED is securely
attached to plug J6 on the ATO
board.
A.
Check to see that fryer is heating.
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. Ensure the board has power
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.
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-
31. If ATO found defective, replace
ATO board.
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.
A.
Check wiring.
B.
Switch flexlines to correct vat.
1-30
If loosening the screws