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An abnormally high water level in the tub will result in water
discharging from the overfill spillway. The subsequent water
level rise in the overfill collector (approximately 1.76 fluid oz.)
will cause the round styrene float to rise and operate the
microswitch via the microswitch lever.
Overfill spillway.
Undersump overfill
Overfill collector.
float and microswitch assembly.
A circuit is established from the N.O. terminal of the overfill
microswitch to the L terminal of the drain pump, thus
energizing the drain pump to effectively lower the abnormal
water level in the tub.
While in the overfill mode, three functions occur, which are
listed as follows:
• The drain pump will run continuously.
• Electronic models terminate all outputs from the power
control board (PCB) during an overfill mode. The feature
is achieved by a 120VAC supply switched to the drain
terminal of the power control board (PCB). A monitor
circuit terminates all outputs if this condition is present.
• Electronic models will rapidly flash the
Heated Dry LED.
NOTE: To terminate the overfill mode, the overfill
collector must be accessed and emptied of water
(approximately 1.76 fl. oz.), for the round styrene float
to lower and reset the microswitch.
5.2.24.1 Refer to Section 5.1 to access the undersump
overfill float and microswitch assembly.
5.2.24.2 A kitchen sponge or similar absorbent cloth can be
used to remove the water from the overfill collector.
5.2.24.3 With a small screwdriver or similar tool, gently lift
the lever of the microswitch upwards to raise the round
styrene float from the bottom surface of the overfill collector.
5.2.24.4 Using a sponge or absorbent cloth, clear the water
remaining under the styrene float to ensure the float rests on
the bottom of the overfill collector.
5.2.24.5 To reinstall and reassemble the undersump overfill
float and microswitch assembly, refer to section 5.2.25.
5.2.23.1 Refer to section 5.1 to gain access to the overfill
spillway.
5.2.23.2 To remove the overfill spillway, simply push the two
barb clips on the sides of the overfill spillway upwards to
disengage the locking action and lift clear as shown below.
Disengage clips and lift clear
5.2.23.3 To reinstall the overfill spillway, engage the two side
barb clips and push the overfill spillway downward to lock the
barb clips in position.
NOTE: The overfill spillway must be located to the rear of the
inlet water supply hose fitted to the sump nozzle as shown
above.
5.2.23.4 Reassemble the dishwasher in reverse order.
CAUTION. Test for water leaks before leaving.
5.2.23.5 Operate and test the dishwasher before leaving.
5.2.24 Undersump Overfill Float and Microswitch
Assembly
The function of the assembly, comprising of an overfill
collector and a round styrene float positioned directly under
the sump, is to sense an overfill condition within the tub.
