Common Air Conditioner Problems and Solutions

Nowadays, a good air conditioner is necessary for every home and establishment. Summers have become hotter, and winters have become colder, so investing in an air conditioner is essential. However, your task does not end when you purchase one. You must maintain it well and figure out the best solutions whenever you experience problems. Check out these common air conditioner problems and their solutions:

  • The AC unit will not turn on

Three parts could have stopped your AC from turning on:

  1. Check if your thermostat’s batteries are dead and replace them if they are.
  2. Check whether your thermostat’s settings are correct.
  3. Check if your circuit breaker is tripped once you are sure that the thermostat is not the problem.

If this is the case, reset it by flicking the switch, and your AC unit should start functioning again.

  • The outside unit is freezing up.

Although many factors come into play, this is most likely caused by one of the following: insufficient airflow, low outside temperature, low coolant levels, blower motor problems, or a stuck contractor. Unfortunately, there is no quick, easy solution since the parts involved are inside the AC, so it is best to call a technician.

  • The AC unit is not blowing cold air.

If your AC unit is not blowing cold air, this is most likely an air filter problem. A dirty air filter will obstruct the entry of cold air from the unit into your room. It can also freeze your condenser unit, causing your AC to work inefficiently. Changing your filter at least once a month should help you avoid this problem.

  • AC unit is making hissing noises.

Different noises that come from your AC unit can also mean various problems. For example, if you hear a hissing noise, it may indicate a refrigerant leak. This will cause further damage to the compressor, freeze your coils, produce uneven air, and contribute to high power consumption. So make sure to inspect your AC regularly for leaks before it begins making noises.

  • You can hear buzzing noises.

Often, a buzzing noise is a sign of faulty electrical components. This is dangerous, mainly since it can start a fire or explosion. As soon you notice a noise coming from your AC unit, quickly turn it off and contact an electrician or technician to fix it. Do not try to fix it by yourself.

  • Drainage problem.

AC units naturally produce water during use. However, if you experience drainage problems, this may be caused by a clogged pipeline. Dust, algae, and dirt can find their way into your drainage system, blocking water on its way out. To prevent or resolve this problem, regularly clean and maintain your drain line and have it inspected by professionals. In addition, make sure that your AC is appropriately mounted.

Air conditioners are expensive appliances. It would cost too much if you had to replace them regularly simply because you didn’t care for them well. Proper maintenance and inspection will always help you avoid running into common air conditioner problems that may cost more in the long run.

Here are some tips on how to keep your air conditioner in tip-top shape:

1. Check the air filter regularly and replace it when necessary. A dirty air filter will impede airflow and cause the AC unit to work harder, leading to a breakdown.

2. Keep the area around the air conditioner free of debris and dust. This will help ensure proper air circulation and prevent the AC unit from overworking.

3. Inspect the AC unit regularly for signs of wear and tear. This will help you identify any potential problems early on to have them fixed before they cause significant damage.

Following these simple tips will help you prolong the life of your air conditioner and avoid costly repairs in the future.



ECM Air Conditioning, with its headquarters located in Boynton Beach, FL, provides air conditioning services within Palm Beach County, Broward County, Martin County, and St. Lucie County. If you’re looking to have a new HVAC system installed, we’re on-call and ready to assist you. So if you’re in need of an HVAC installation, don’t hesitate to contact us today to schedule an inspection! Our HVAC installation experts will check your ductwork, measure, check wire sizes, and more before making recommendations to ensure maximum efficiency and comfort. Call us at 561-295-1763 or contact our HVAC installation team online by clicking here.


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