Fault detection and diagnosis for refrigerator from compressor sensor
A refrigerator, a sealed refrigerant system, and method are provided where the refrigerator includes at least a refrigerated compartment and a sealed refrigerant system including an evaporator, a compressor, a condenser, a controller, an evaporator fan, and a condenser fan. The method includes monitoring a frequency of the compressor, and identifying a fault condition in the at least one component of the refrigerant sealed system in response to the compressor frequency. The method may further comprise calculating a compressor frequency rate based upon the rate of change of the compressor frequency, wherein a fault in the condenser fan is identified if the compressor frequency rate is positive and exceeds a condenser fan fault threshold rate, and wherein a fault in the evaporator fan is identified if the compressor frequency rate is negative and exceeds an evaporator fan fault threshold rate.
- Research Organization:
- Whirlpool Corporation, Benton Harbor, MI (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0003910
- Assignee:
- Whirlpool Corporation (Benton Harbor, MI)
- Patent Number(s):
- 10,208,993
- Application Number:
- 15/343,391
- OSTI ID:
- 1503302
- Resource Relation:
- Patent File Date: 2016 Nov 04
- Country of Publication:
- United States
- Language:
- English
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