| 摘要 |
PROBLEM TO BE SOLVED: To provide a washing machine preventing a defect during operation beforehand by efficiently performing a trial operation during installing and mounting thereof.SOLUTION: The washing machine includes: a water level detector 12 for detecting the amount of water in a washing tab; a timer 14 for measuring time of water supply and drainage, wherein the adequacy and inadequacy of the condition of drainage is determined by measuring the drainage time from the water supply completion water level, which is determined out of the increased amount of water level per predetermined time during water supply to the drainage completion water level, which is simultaneously determined; and a display instrument 10 for notifying the default to a user and thereby, preventing an adverse effect on the operation beforehand. |
