Diagnostic system for an appliance
First Claim
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1. A domestic appliance comprising:
- a display including a plurality of information display zones capable of displaying alpha-numeric data; and
a control system for the appliance, said control system including a memory device and a diagnostics unit which establishes diagnostic information concerning a malfunctioning component of the appliance, said diagnostic information being presented in the display in the form of an alpha-numeric fault code, with the fault code representing at least three distinct diagnostic related parameters, said diagnostics unit further storing in the memory device information concerning a specified series of diagnostic steps taken by a technician in diagnosing the malfunctioning component of the appliance.
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Abstract
A system and method of determining and displaying a failure in an electronic appliance control system employs diagnostic codes which indicate both a primary system where a fault occurs and a subsystem in fault. The diagnostic codes are displayed so that repair personnel may be able to more accurately replace only the faulty part, as opposed to replacing an entire appliance control system. The diagnostic codes are established to include a plurality of digits represented by a combination of letters and numbers. The electronic appliance control also preferably records a specific series of diagnostic steps taken to verify replacement of only an actual faulty component.
80 Citations
17 Claims
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1. A domestic appliance comprising:
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a display including a plurality of information display zones capable of displaying alpha-numeric data; and a control system for the appliance, said control system including a memory device and a diagnostics unit which establishes diagnostic information concerning a malfunctioning component of the appliance, said diagnostic information being presented in the display in the form of an alpha-numeric fault code, with the fault code representing at least three distinct diagnostic related parameters, said diagnostics unit further storing in the memory device information concerning a specified series of diagnostic steps taken by a technician in diagnosing the malfunctioning component of the appliance.
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2. A domestic appliance comprising constituted by a dual wall oven having upper and lower ovens comprising:
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a display including a plurality of information display zones capable of displaying alpha-numeric data; and a control system for the appliance, said control system including a diagnostics unit which establishes diagnostic information concerning a malfunctioning component of the appliance, said diagnostic information being presented in the display in the form of an alpha-numeric fault code, with the fault code representing at least three distinct diagnostic related parameters, wherein one of the at least three diagnostic related parameters conveys whether the malfunctioning component forms part of the upper oven or the lower oven. - View Dependent Claims (3, 4, 5, 6)
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7. A domestic appliance comprising:
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a display including a plurality of information display zones capable of displaying alpha-numeric data; and a control system for the appliance, said control system including a memory device and a diagnostics unit, said diagnostics unit storing in the memory device information concerning a specified series of diagnostic steps taken by a technician in diagnosing a malfunctioning component of the appliance. - View Dependent Claims (8, 9, 10, 11)
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12. A method of diagnosing a component malfunction in a domestic appliance constituted by a dual wall oven having upper and lower ovens comprising:
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sensing the malfunctioning of the component of the appliance; collecting diagnostic information concerning the malfunctioning component; and displaying the diagnostic information as an alpha-numeric, multi-parameter fault code in a display of the appliance, wherein the fault code conveys whether the malfunctioning component forms part of the upper oven or the lower oven. - View Dependent Claims (13, 14)
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15. A method of diagnosing a component malfunction in a domestic appliance comprising:
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sensing the malfunctioning of the component of the appliance; collecting diagnostic information concerning the malfunctioning component; displaying the diagnostic information as an alpha-numeric, multi-parameter fault code in a display of the appliance; and storing, in a memory device of the appliance, information concerning a specified series of diagnostic steps taken by a technician in diagnosing the malfunctioning component of the appliance. - View Dependent Claims (16, 17)
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Specification