| 摘要 |
<p>PURPOSE:To obtain an electric water heating appliance equipped with a function making it possible to know early the abnormality of a time switch which limits a time of electrification by a midnight power. CONSTITUTION:A power supply time measuring means (g) which measures a time for which a power is supplied through a time switch (c) and a display means (i) which starts operating by an operation of a mode switching part (h) and displays the result of measurement by the measuring means (g) are provided. Moreover, a power non-supply time measuring means (j) for measuring a time for which the power is not supplied is provided and a measured value thereof and a measured value of the supply time are displayed in the display means (i). Besides, a means for generating an alarm when the measured value of the power supply time is a value set beforehand or below is provided.</p> |
