Title:
INSPECTION DEVICE OF TANK WATER LEVEL DETECTION SWITCH IN WASHER
Document Type and Number:
Japanese Patent JP3524764
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an inspection device by which the inspection of a water level detection switch is performed precisely while effectively utilizing time.
SOLUTION: The inspection of the on-operation of an overflow switch 21 is performed by judging whether a swatch 21 is turned on or not within a first set time after forcibly supplying water from a set water level A. The inspection of the off-operation is performed by judging whether the switch 21 is turned off or not within a second set time after actuation of a rinsing pump 12 from a state of an overflow water level B. These inspection processes are performed along with a first rinsing cycle after the power supply is turned on. Since the inspection processes are performed along with the washing cycle at the time of turning the power supply on again, there is no fear that the processes are mistaken for an accident, and waiting time is also saved. Since the judgement for the off-operation of the switch 21 is performed in a stable state in which the rinsing pump 12 has already been driven a plurality of times and there is no air residence or the like, a precise judgement can be achieved.
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Inventors:
Hosoki, Tadaharu
Nozu, Masumi
Nozu, Masumi
Application Number:
JP13198898A
Publication Date:
May 10, 2004
Filing Date:
May 14, 1998
Export Citation:
Assignee:
HOSHIZAKI ELECTRIC CO LTD
International Classes:
A47L15/42; A47L15/46; G05D9/02; (IPC1-7): A47L15/46; A47L15/42; G05D9/02
Attorney, Agent or Firm:
後呂 和男 （外１名）