Diagnosis system for household electric appliances

Details Diagnosis system for household electric appliances Diagnosis system for household electric appliances

2007-03-27

2007-03-27

Wachsman, Hal (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C702S058000, C702S059000, C702S064000, C307S038000, C307S085000

Reexamination Certificate

active

10537585

ABSTRACT:
A diagnosis system for household electric appliances, such as refrigerators, freezers, and others, presenting multiple loads, energized by switches commanded by electronic c ontrols coupled to a command module, which energizes the loads and an interface. The system includes a voltmeter to measure a first voltage in the inlet of the loads with the switches opened and a second voltage in the inlet of each load with respective switch closed, and a control unit for processing the values of the first voltage and of each second voltage. The control unit provides an interface with an indication of a failure in the command module, in the switches, or in the respective electronic controls thereof, in case a second voltage presents a value that is equal to or higher than that of the first voltage.

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patent: WO2004017482 (2004-02-01), None

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