Filter
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6-6
PROBLEM PROBABLE CAUSES CORRECTIVE ACTION
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C. Blockage in filter pump.
Test: Close the drain valve. Place the
filter handle in the OFF position,
allow the pump to cool for at least 45
minutes, and then press the reset
button on the pump motor. Pull the
filter pan from the unit. Activate the
pump. If the pump motor hums and
then stops, the pump is blocked. Also
if air or bubbling oil comes out of the
rear flush port, there is a blockage in
the filter pan suction tube.
C. Pump blockages are usually
caused by sediment build-up in
the pump due to improperly sized
or installed filter pad and failure
to use the crumb screen. Use a
thin flexible wire to remove the
blockage. If the blockage cannot
be removed, call FASC.
Ensure that filter pad is of the proper
size and is installed properly, and that
the crumb screen is used.
A. Cooking oil is too cold for
filtering.
A. To properly filter, the oil should
be at or near 350°F (177°C). At
temperatures lower than this, the
oil becomes too thick to pass
through the filter medium easily,
resulting in much slower oil
return and eventual overheating of
the filter pump motor.
Filter Pump starts,
but no transfer takes
place or the oil
return is very slow.
B. Improperly installed or prepared
filter pan components.
Test: Close the drain valve.
Move the filter handle to the OFF
position, pull the filter pan from
the unit. Move the filter handle to
the ON position.
If a strong stream of air is being
pumped out of the oil return port,
the problem is with the filter pan
components.
B. Remove the oil from the filter pan
and replace the filter pad,
ensuring that the filter screen is in
place under the pad.
If this does not correct the
problem, the filter suction tube is
probably blocked. Remove the
blockage using a thin, flexible
wire. If unable to remove the
blockage, call FASC.