The answer to 'my central air keeps shutting off' is that there are several common causes, including a clogged air filter, a refrigerant leak, a malfunctioning thermostat, or an issue with the compressor or condenser unit. This can lead to symptoms like the air conditioner cycling on and off frequently, inconsistent cooling, or the system shutting off altogether.
Some potential DIY solutions include replacing the air filter, checking for obvious refrigerant leaks, and ensuring the thermostat is set properly. However, more complex issues like a compressor or condenser problem will likely require a professional HVAC technician to diagnose and repair. It's generally best to call in an expert if the issue persists or you're unsure of the cause.