4 Reasons Your Air Conditioner is Not Cooling Your House

4 Reasons Your Air Conditioner is Not Cooling Your House

Why is my air conditioner not blowing cool air? What should I do if it starts hissing or bubbling? How can I stop water leaking? Are ice formations normal? This blog addresses your questions so you can enjoy a well-functioning AC at home.

Mitsubishi Electric | 4 Reasons Your Air Conditioner is Not Cooling Your House

1. Your air conditioner fan is set incorrectly on your thermostat

Your AC fan could be on the wrong setting if you only feel intermittent cool air. Turning the AC fan ‘ON' makes the blower run non-stop, so that it runs without cooling your home.

Tip: Use the ‘AUTO' setting on your thermostat instead; it turns your AC's blower off automatically every time your room reaches the desired temperature.

2. Your air filter is clogged

Your air conditioner can't keep you cool when its air filters are clogged by dust, debris, or dander. Airflow becomes restricted, making it difficult to move, cool and cycle back air into your home.

Tip: Check your air filters every month. You just need a little soap and water to clean it before replacing it when it's dry.

Mitsubishi Electric | Your air conditioner can't keep you cool when it's clogged by dust

3. The refrigerant is leaking

The refrigerant is a compound fluid in your AC system that converts warm air into cold air. If there's a leak, then your home cannot be cooled to the temperature on your thermostat.

Tip: Immediately contact an expert technician if you discover the following signs:

  • Hissing or bubbling noise
  • Ice crystals forming on the refrigerant line outside
  • Your AC doesn't cool your home when it's hot during the day, but works fine when it's cool at night
4. Your evaporator coil is frozen

An evaporator coil absorbs heat from the air in your house, allowing cool air to blow out. If the coil is frozen it's incapable of absorbing warm air.

Tip: Call in a professional if you notice a pool of water around your AC unit. Coil freezing may be caused by: refrigerant leaks, clogged air filters, or short-cycling (frequent on-and-off cycles of your AC which will increase your energy bills).

Need a trustworthy air conditioner in Malaysia?

It's frustrating when your AC fails to work, especially during a heat wave. Get smart in noticing when your air conditioner needs repair or replacement. Check out 4 Tips You Need to Save On Your Air Conditioning Bill.

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