Why voltage matters
An AC's compressor needs steady power to start and run. When voltage drops in the evening peak, a non-inverter AC can struggle to start, trip, or run hot. Sudden spikes when power comes back can also damage boards and capacitors.
When a stabilizer helps
If your area often has low voltage, a stabilizer of the right capacity for your AC can keep the supply in a safe range. Many inverter ACs handle a wider voltage range on their own, but protection against spikes is still useful. Ask a mistri to check your voltage at the busy time before buying one.
Habits that protect your AC
- When power goes, switch the AC off from the remote and wait a few minutes after it returns before turning it on
- Use a separate breaker and wiring of the right thickness for the AC
- Don't run the AC on a thin extension lead
- If the breaker trips repeatedly, stop and get it checked
Running on UPS or solar
Many homes now run ACs on solar or a large inverter/UPS. The system must be sized for the AC's starting load, and an inverter AC is usually easier on such systems. Get both the AC and the solar/UPS setup checked by someone who understands the total load.