If the air conditioner compressor runs only when you manually push the relay and stops when you release it, the relay or its control circuit may be faulty. The relay might not be receiving the proper control signal, or the relay itself may be defective and unable to stay engaged. A qualified technician can test the relay, wiring, and control board to identify the exact cause.

Best practices for air conditioner maintenance include regularly cleaning or replacing air filters, checking refrigerant levels, and ensuring the coils and drain lines are clean. Routine inspection of electrical components and airflow helps the system run efficiently and prevents breakdowns. Regular maintenance also extends the unit’s lifespan and reduces energy consumption.