DISHWASHER

PROBLEM TO BE SOLVED: To provide a dishwasher which can attain the cost down and maintenance-free. SOLUTION: This dishwasher is composed of a washing tub 5 for storing a washing liquid, a semiconductor pressure sensor 22 for detecting the level of washing liquid in this washing tub 5, a full water level setting part for applying at least one setting value to the water level detection value of this semiconductor pressure sensor 22, at least one full water level detection comparator to be operated by the difference of the water level detection value by the semiconductor pressure sensor 22 and the water level setting value, a computer for receiving the output of this full water level detection comparator, and a hot water supply operating part for the washing liquid to be operated by the output of this computer.