Frymaster FOOTPRINT RE80 - Manual (Page 14)

1-9
1.9 Built-in Filtration System Service Procedures
1.9.1 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-rings on the pick-up tube of the filter pan are in good condition. Missing or
worn O-rings allow the pump to take in air and decrease its efficiency.
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 at the front of the fryer.
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
(cold oil is more viscous,
overloading the pump motor and
causing it to overheat).
If the motor runs but the pump does not
return oil, there is a blockage in the pump.
Incorrectly sized or installed paper/pads will
allow food particles and sediment to pass
through the filter pan and into the pump.
When sediment enters the pump, the gears
bind, causing the motor to overload, again
tripping the thermal overload. Shortening
that has solidified in the pump will also
cause it to seize, with the same result.
A pump seized by debris or hard shortening
can usually be freed by manually moving
the gears with a screwdriver or other
instrument.
Sediment Particle
Oil Flow
Up for reverse
Down for forward
Sediment Particle