| 摘要 |
PROBLEM TO BE SOLVED: To facilitate analysis of failures caused by external environment, i.e., temperature, humidity, and the like. SOLUTION: The hot water supply apparatus provided with a failure monitoring means 50 comprises means 51 for measuring external environment where the hot water supply apparatus is installed, a memory means 52 for storing the results of the failure monitoring means 50 and the measurements of the environment measuring means 51 upon occurrence of failure in the hot water supply apparatus, and a section 37 for displaying the results of the failure monitoring means 50 stored in the memory means 52 by operating a maintenance switch 53 and the measurements of the environment measuring means 51.
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