Failure mode determination means

Abstract

A method for determining a failure mode of a comfort device, the method includes obtaining a first input during a first operation of the comfort device, wherein the first operation is a known normal operation; classifying the first input into a class including a series of attributes and storing the first input in a database of input classes; obtaining a second input during a second operation of the comfort device; and classifying the second input into a class including a series of attributes and comparing the class of the second input to the class of the first input in a first comparison, wherein if a match exists, comparing the series of attributes of the second input to the series of attributes of the first input in a second comparison, wherein if a discrepancy is detected, a warning is raised.

Dependencies are inferred from the claim text.