1) Turn on the power switch of the ultrasonic cleaning machine, and the indicator light is not bright. In this case, the maintenance must check whether the power switch is in good condition and whether the leakage switch is closed. If the switch is intact and then check whether the fuse is overloaded and blown, it can basically be solved.
2) After the ultrasonic cleaning machine turns on the power switch, the indicator light is on, but there is no ultrasonic output. This situation is more complex, maintenance first check whether the transducer and ultrasonic power board connection plug is loose, and then check whether the fuse is blown. If everything is normal, it may be the internal fault of the ultrasonic power generator, use a multimeter to play the open line of the power line, and whether the fire line is through. After eliminating the generator fault, check whether the ultrasonic transducer is burned out and whether it needs to be replaced.
3) The DC fuse of the ultrasonic cleaning machine is blown. It may be that the rectifier bridge stack or power tube is burned, it may also be the aging of the transducer, and the current is unstable, which may cause the failure of the power generator. Pay more attention to maintenance.
4) After the ultrasonic cleaning machine opens the power switch, the machine has ultrasonic output, but the cleaning effect is not as ideal as before. This situation is mostly caused by improper use, such as improper cleaning liquid level in the cleaning tank, too high or too low; Ultrasonic frequency coordination is not well adjusted; The liquid temperature in the cleaning tank is too high or too low; Improper selection or insufficient dosage of cleaning fluid. Of course, it does not rule out that most of the ultrasonic energy can not be transferred to the cleaning solution after the transducer degluing, which should be returned to the manufacturer in time for maintenance, so as not to burn the oscillator.