Abstract
Technological developments are currently experiencing very rapid changes along with human needs that are increasingly numerous and complex. Not only in the fields of health, education, agriculture, and so forth. However, the electronics industry has also been affected by the development of this technology. The production of household electronic devices or home appliances that combine sophistication of technology and modern designs has emerged and is much in demand by the public, one of which is the refrigerator. Even with the development of this technology, it does not mean that the refrigerator can function properly forever if it is used continuously. Because the refrigerator requires maintenance and repair if there is damage. In diagnosing damage to a 2-door no frost home appliances refrigerator, limitations in information, knowledge, and experience from the public and technicians cause delays in recognizing the damage that has occurred, which also affects decision-making in handling it. Then a system will be formed using an expert system computer program with the Certainty Factor method. The Certainty Factor method is a method for accommodating statements from an expert in their delivery. where a website-based expert system is created that can be used without any space and time limitations to help new technicians and the public. The result of testing this method is the resulting accuracy rate of more than 90% of the data
 has been tested so that it can assist technicians in diagnosing damage to the no frost 2 door refrigerator
Published Version (
Free)
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