Filter
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7-9
27. Reinstall the top connecting strips, top cap, tilt housing and back panels.
28. Reinstall controllers in the control panel frame and reconnect the wiring harnesses and ground
wires.
29. Reposition the fryer under the exhaust hood and reconnect it to the electrical power supply.
7.9 Built-in Filtration System Service Procedures
7.9.1 Filtration System Problem Resolution
One of the most common causes of filtration problems is placing the filter paper on the bottom of the
filter pan rather than over the filter screen.
CAUTION
Ensure that filter screen is in place prior to filter paper placement and filter pump
operation. Improper screen placement is the primary cause of filtration system
malfunction.
Whenever the complaint is “the pump is running, but no oil is being filtered,” check the installation
of the filter paper, and ensure that the correct size is being used. While you are checking the filter
paper, verify that the O-ring on the bottom of the filter pan is present and in good condition. A
missing or worn O-ring allows the pump to take in air and decreases its efficiency. Also, oil leaks
on the floor each time a vat is drained.
If the pump motor overheats, the thermal overload will trip and the motor will not start until it is
reset. If the pump motor does not start, press the red reset switch (button) located on the rear of the
motor.
If the pump starts after resetting the thermal
overload switch, then something is causing
the motor to overheat. A major cause of
overheating is when several frypots are
filtered sequentially, overheating the pump
and motor. Allow the pump motor to cool at
least 30 minutes before resuming operation.
Pump overheating can be caused by:
• Solidified shortening in the pan or
filter lines, or
• Attempting to filter unheated oil or
shortening (cold oil and shortening
are more viscous, overloading the
pump motor and causing it to
overheat).
If the motor runs but the pump does not,
there is a blockage in the pump. Incorrectly
sized or installed paper/pads will allow food
Sediment Particle
Oil Flow
Up for reverse
Down for forward
Sediment Particle