The circuit board should be regularly maintained during use to ensure that the circuit board is working in good condition and reduce the failure rate of the circuit board. The maintenance of the circuit board in use is divided into the following situations. Follow the editor of Cheapest Purifier circuit board to understand it briefly!
1. Semi-maintenance
1. Clean up the dust on the circuit board quarterly. You can clean it with a special cleaning solution for the circuit board. After cleaning the dust on the circuit board, use a blower to dry the circuit board.
2. Observe whether the electronic components in the circuit have any traces of high temperature, and whether the electrolytic capacitor has bulged and leaked, and should be replaced if any.

2. Annual maintenance
1. Clean the dust on the circuit board.
2. Carry out sampling inspection of the electrolytic capacitor capacity in the circuit board. If it is found that the electrolytic capacitor capacity is less than 20% of the nominal capacity, it should be replaced. Generally, the electrolytic capacitor should be completely replaced after ten years of service life to ensure the circuit board’s Work performance.
3. For high-power devices coated with heat-dissipating grease, check whether the heat-dissipating grease is dry or not. For dry heat-dissipating grease, remove the dry heat-dissipating grease and apply new heat-dissipating grease to prevent the circuit board. The high-power devices in the medium burn out due to poor heat dissipation.
In summary, the editor of Cheapest Purifier circuit board tells: a brief introduction to the maintenance knowledge of circuit boards.