Frymaster FOOTPRINT 8196345, Service & Parts Manual, Page: 38 / 84

1-32
1.13.3 Replacing the ATO Board or Transformer
Disconnect the fryer from the electrical power
supply. Locate the ATO box (see Figure 1 on
page 1-29), behind the JIB (Jug In Box).
Remove the cover to expose the transformer and
ATO board (see Figure 2). Mark and unplug
any wires or harnesses. Replace the defective
component and reattach all wires or harnesses.
Replace the cover. Once replaced, reconnect the
power. Remove and restore power to ALL
computers after power has been restored to the
ATO board.
Figure 2
1.13.4 Replacing the ATO Pump or Solenoid
Disconnect the fryer from the electrical power
supply. Locate the ATO pump and solenoid
tree (see Figure 3), behind the ATO box. Mark
and unplug any wires or harnesses. Replace the
defective component and reattach all wires or
harnesses. Once replaced, reconnect the power.
Figure 3
1.14 CM7 Computer Service Procedures
1.14.1 CM7 Computer Troubleshooting
Problem Probable Causes Corrective Action
A. Computer not turned on.
A. Press the ON/OFF switch to
turn the computer on.
B. No power to the fryer.
B. If the computer power cord is
not plugged in, the computer
will not activate. Verify
computer power cord is
plugged in and that circuit
breaker is not tripped.
C. Computer has failed.
C. Swap the computer with a
computer known to be good. If
computer functions, replace the
computer.
No Display on
Computer.
D. Damaged computer wiring
harness. D. Swap with a harness known to
be good. If computer
functions, replace the harness.