Final answer:
The correct action when a lead from the compressor common terminal is burnt and damaged is to replace the damaged lead to ensure the compressor's safe and effective operation.
Step-by-step explanation:
If the lead from the compressor common terminal is burnt and damaged, the recommended action is to replace the damaged lead. This is crucial for ensuring the safe and effective operation of the compressor. Ignoring the damage, increasing compressor speed, or adding more refrigerant are not appropriate actions for dealing with a burnt electrical lead, as these do not address the root cause of the issue and could lead to further damage or hazardous conditions.
If the lead from the compressor common terminal is burnt and damaged, the recommended action is to replace the damaged lead. When the lead is damaged, it can disrupt the electrical flow and cause issues with the compressor's performance. Increasing the compressor speed or adding more refrigerant will not solve the problem and may lead to further damage.