As temperatures soar, air conditioners are running for longer hours in homes and offices. However, experts warn that neglected AC units can become a serious safety hazard, with electrical faults and overheating sometimes leading to fires or even explosions. Fortunately, most ACs show warning signs before a major malfunction occurs.
1. Burning smell or smoke
A burning odour resembling melted plastic or overheated wires is one of the most serious warning signs. If you notice smoke or a burning smell while the AC is operating, switch it off immediately. Such symptoms may indicate a short circuit, overheating components or other electrical faults that require urgent inspection by a qualified technician.
2. Circuit breaker trips repeatedly
If the MCB or circuit breaker trips every time the AC is switched on, do not ignore it. Frequent tripping may point to electrical overload, faulty wiring or compressor-related issues. Continued operation under such conditions can significantly increase the risk of fire.
3. Unusual noises and excessive vibration
Rattling, grinding sounds or excessive vibration often indicate internal mechanical problems. Faults involving the fan motor, compressor or other moving parts can worsen rapidly if left unattended, potentially leading to costly damage and safety risks.
4. Poor cooling and overheating unit
An AC that runs continuously without adequately cooling the room, while becoming unusually hot itself, may be suffering from a compressor malfunction or refrigerant leak. Operating the unit in this condition can place excessive strain on the system and increase the likelihood of a serious breakdown.
5. Hot switches, plugs or sockets
If the switchboard, plug or socket connected to the AC feels unusually hot, turn off the power supply immediately. Loose electrical connections, overloaded circuits or poor-quality wiring are common causes and can lead to electrical fires if not addressed promptly.
How to keep your AC safe
Regular maintenance remains the best way to prevent accidents. Homeowners should clean AC filters periodically and arrange an annual inspection by an authorised technician to check wiring, refrigerant levels and compressor health. Experts also advise against running an AC continuously for extended periods without breaks, as this can increase wear and overheating.
Routine servicing not only improves performance and energy efficiency but also helps ensure the safety of your home and family.