Rev 0 (1/17/08)
16
WFMC64/84 Service Tips
WFMC64/84 Service Tips
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Mechanical &
Mechanical &
Analog Pressure Switches
Analog Pressure Switches
The water level (pressure switch) system consists of a
pressure sensor and a pressure switch.
Pressure Switch
The pressure switch (brown) has (3) switching positions:
• Water level < level 1
• Water heating level
• Overflow level
Pressure Sensor
The pressure sensor (black) determines the different water
levels in the various wash programs. It is piezo-electric
(pressure on it generates a voltage) and generates between
0.5 - 3.5 VDC.
HINT: Its not helpful to measure the pressure sensor voltage
because its shown on the digital display while the washer is in
the test program.
Pressure
Switch
Pressure
Sensor
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