When the outlet water pressure of the high-pressure ultrasonic cleaner fails to meet the corresponding standard, mainly investigate and handle from the above five aspects, and the problem can be well solved. Generally, the quality of high-pressure ultrasonic cleaners is very good, but some common problems may also be encountered during the usage process. In fact, when the outlet water pressure fails to meet the corresponding standard, as long as the following objects are checked one by one, the problem can be solved.