•The operator attempted to filter oil or shortening that was not heated. Cold oil and shortening are thicker and cause the pump motor to work harder and overheat.
If the motor tries to run but the pump does not, there is a blockage in the pump. Incorrectly sized or installed paper will allow food particles and sediment to pass through the filter pan and into the pump. When sediment enters the pump, the gears can bind up causing the motor to overload, again tripping the thermal overload. Solidified shortening 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.
1.Disconnect power to the filter system.
2.Remove the input plumbing from the pump.
3.Use a screwdriver to manually turn the gears.
•Turning the pump gears backwards will release a hard particle and allow its re- moval.
•Turning the pump gears forward will push softer objects and solid shortening through the pump and allow free move- ment of the gears.
Sediment
Particle
Oil Flow
Sediment | Up for reverse | |
Particle | ||
|
Down for
forward
Incorrectly sized or installed paper will also allow food particles and sediment to pass through and clog the suction tube on the bottom of the filter carriage. Particles large enough to block the suction tube may indicate that the crumb tray is not being used.
Pan blockage can also occur if shortening is left in the pan and allowed to solidify. The heater strip on the suction tube is designed to prevent solidification of residual shortening left in the tube. It will not melt or prevent solidification of shortening in the pan.
Blockage removal can be accomplished by forcing the item out with an auger or drain snake. Com- pressed air or other pressurized gases should not be used to force out the blockage.
Possible problems with the Power Shower include clogged openings, shortening solidified in the tubes, missing
The electronics of the Filter Magic II are simple and straightforward. Microswitches, attached to the drain valve handles of each vat and wired in parallel, provide the 24 VAC needed to activate the pump relay coil when the handles are moved to the ON position. The activated coil pulls in the pump motor switch, supplying power to the motor.