2nd Edition/Revision 0 (4/28/04)
R020031E
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WFMC64/WFXD84 Service Tips
WFMC64/WFXD84 Service Tips
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Mechanical & Analog Pressure Switches
Mechanical & Analog Pressure Switches
The water level (pressure switch) system consists of a
mechanical pressure switch and an analog pressure switch.
Mechanical Pressure Switch
The mechanical pressure switch (brown) has (3) switching
positions:
• Water level < level 1
• Water heating level
• Overflow level
Analog Pressure Switch
The analog pressure switch (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 analog pressure switch
voltage because its shown on the digital display while the
washer is in the test program.
Mechanical
Pressure
Switch
Analog
Pressure
Switch