1. First, turn off the power supply, disassemble the incubator, and check whether the circuit board and keys are damp or damaged. If there are signs of moisture, you can put the circuit board and keys in a ventilated and dry place to dry, and then clean the circuit board with professional electronic cleaning agent.

2. Secondly, if the key is damaged, it needs to be replaced with a new one. You can contact the manufacturer or professional maintenance site and ask technicians to help replace the new buttons.

3. Finally, if the circuit board is oxidized, professional electronic cleaning agents can be used to clean the circuit board and remove the oxidized substances.