1. Voltage instability: In the event of voltage fluctuations during operation, a load condition may occur, even preventing the normal startup of the variable frequency air compressor, which can lead to changes in cylinder pressure.

2. Motherboard damage: Continuous and prolonged use can easily lead to motherboard damage. Once damaged, the internal components of the equipment will not function properly, resulting in the inability to release air pressure.

3. Cooling fan damage: During operation, the variable frequency air compressor may also experience faults due to high temperatures, and a damaged cooling fan can cause malfunctions.