The answer to 'my condenser keeps shutting off' is that there are several common causes, including a refrigerant leak, a malfunctioning thermostat or control board, a blocked or dirty condenser coil, or a problem with the compressor or fan motor. Symptoms may include the condenser cycling on and off frequently, the house not cooling properly, or high energy bills.
Troubleshooting and repairing a condenser that keeps shutting off often requires the expertise of a professional HVAC technician. While some basic maintenance like cleaning the condenser coil can be done DIY, diagnosing and fixing more complex issues with the refrigerant system, electrical components, or compressor is best left to the pros. Attempting DIY repairs on your HVAC system can be dangerous and may void the manufacturer's warranty.