Method steps to solve potentiometer failure by yourself

When the potentiometer is in use, there is a problem with large rotating noise. Don't rush to replace the potentiometer, or we can repair it with our diligent hands.

Usually when the potentiometer has a large rotating noise, we will repair it through cleaning. The specific cleaning method is: try to let the pure alcohol cleaning liquid flow to the carbon film inside the potentiometer, and keep rotating the handle to make the contacts slide on the carbon film to achieve the purpose of cleaning the carbon film and contacts. This cleaning can be done with power on. It should be noted here that pure alcohol must be used. Then turn the handle to listen to the size of the noise, and guide the noise until it disappears. How to make the cleaning liquid flow onto the carbon film?

1. For the straight-slide carbon film potentiometer: it should be dripped from the gap of the handle.

2. For the rotary potentiometer that cannot flow in from the outside: you can open the shell of the potential before cleaning.

3. For potentiometers with large gaps at the pins: naturally drip in from the gaps in the pins.

4. For potentiometers with large gaps in the handle: you can drop in from the gap in the handle.