When functioning correctly, your air conditioning system should make little noise. Of course, the condenser unit located outside can be loud, but it should not emit any unusual sounds. Certain sounds coming from your AC can be a sign that there is an underlying issue that needs to be addressed before it causes damage and costly AC repairs. Read on to learn four sounds your air conditioning system should never make and what you should do if you hear them.
1. Hissing Noise
A hissing noise coming from your air conditioning system may be a sign that there is a refrigerant leak. Refrigerant travels through copper tubes, which run to the outside of your home near the condenser unit. If one of these copper tubes are damaged, refrigerant can leak.
Refrigerant is essential to a cool and comfortable home, so if you do hear a hissing noise and suspect it may be a refrigerant leak, call your local air conditioning company for professional service. Exposure to refrigerant can be dangerous so it’s important to hire a professional to address the problem.
Other common causes of refrigerant leaks:
- Leaking valves
- Rusted heat pump accumulator
- Leaking pump coil
- Faulty flare connections
- Holes in a capillary tube
2. Banging Noise
Hear a banging noise coming from your AC? We recommend turning it off as soon as possible. It’s likely that something has come loose within the unit. Whether a bolt, screw or fan blade, letting it be tossed around the unit can cause damage and a costly repair. Turn off the power to the unit and see if you can locate the loose part, or call your local AC technician for help.
3. Screeching Noise
A screeching noise likely means the fan motor or compressor is in need of repair. If the problem is stemming from the fan motor, you will hear a screeching noise the entire time your AC is running. In this situation, your AC technician will need to replace the fan motor. If you hear the screeching noise only when your AC turns on, the issue is likely stemming from the compressor, which may need to be replaced. Consult with your AC technician to determine the best course of action.
4. Buzzing Noise
A buzzing noise is usually an indicator that there is an electrical issue lurking within your air conditioning system. If you hear this noise, turn off your AC right away. Electrical issues can result in electrical fires, so take extra precautions and act quickly if you do hear this noise.
Contact A+ Air Conditioning for Air Conditioning Repair Service
At A+ Air Conditioning and Refrigeration, we offer quality AC repair services. If your air conditioning system is making any of the above noises, contact us today.