Pressure Transducer; Out Of Balance Switch - Whirlpool Catalyst Troubleshooting & Repair Manual

PRESSURE TRANSDUCER

TRANSDUCER
HARNESS
PLUGS
The water level transducer is located at the left end of the console area and is used to regulate the level
of wash and rinse water in the tub. The electronic pressure transducer converts air pressure created
in the pressure dome to a low voltage square wave signal. The microcomputer on the control board
reads the signal directly. The microcomputer then translates the frequency into inches of water. This
is then compared to the setting selected by the user during the wash cycle.
The transducer also contains a mechanical overfill switch in the same transducer body. This operates
the same as the standard pressure switch. The overfill operates (opens) when the water level in the
tub is beyond the standard high fill level (flood level).

OUT OF BALANCE SWITCH

The Out of Balance Switch controls the motor operation during the Catalyst Cleaning portion of the
cycle, as well as during the spin. If an out of balance condition occurs during Catalyst Clean, the motor
circuit is interrupted. The motor will stop momentarily to allow the load to settle, then restart. If the Out
of Balance Switch is actuated four times, the Electronic Control will skip the Catalyst Clean cycle and
jump to the wash increment.
If an out of balance condition occurs during spin,
the motor circuit will again be interrupted
momentarily to allow the load to settle. If the Out
of Balance switch is actuated four times during
the spin cycle, the cycle will stop and the control
will display "OB".
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