Regularly inspect and clean the buttons to remove any dirt. Due to the small spacing between the button contacts, over years of use or poor sealing, dust or oil emulsions can seep in, leading to reduced insulation and potentially causing short-circuit accidents. In such cases, insulation and cleaning treatments should be performed, along with appropriate sealing measures.

Buttons are prone to deformation and aging when used in high-temperature environments, leading to loose buttons and potential short circuits due to contact between wiring screws. A locking ring can be added during installation to tighten the button, or an insulating plastic tube can be fitted over the wiring screws to prevent loosening.

The illuminated button is not suitable for long-term use due to the heat generated by the bulb, which can cause the plastic lamp cover to deform over time, making it difficult to replace the bulb. Therefore, it should not be used in places with extended power-on times; if used, the bulb voltage can be appropriately reduced to extend its lifespan.

If poor contact is detected, investigate the cause: if the contact surface is damaged, use a fine file to reshape it; if there is dust or soot on the contact surface, wipe it clean with a clean cloth dampened with solvent; if the contact spring is malfunctioning, replace it; if the contact is severely burned, replace the product.