The answer to 'how to fix condenser' is to first diagnose the issue, then clean or repair the condenser unit as needed. This may involve clearing debris, straightening fins, checking refrigerant levels, and replacing worn parts. Regular maintenance can also help prevent condenser issues and extend its lifespan.
If you're not comfortable working on the condenser yourself, it's best to call a professional HVAC technician. They have the expertise and tools to properly inspect, diagnose, and repair the condenser unit safely.