What Should I Do If The Voltage Stabilizer Produces Noise After Being Used For A Long Time?

Generally, Automatic Voltage Stabilizer will have the following two types of noises after long-term use:

1. The sound of current emitted by electronic components

2. The sound emitted by the transformer wire turns and the outer iron core

The sound emitted by electronic components can usually be improved by replacing good components. The sound of the transformer itself is generally difficult to deal with, but there are also some very simple transformers that we can use glue or screws to reinforce the iron core (a very dense iron sheet on the outside) to reduce the sound.