Air Conditioning Service

AC Repair Services For Homes In Baltimore, Columbia, Bowie, and Annapolis MD

 Even with proper maintenance, sometimes air conditioners break down, usually at the worst possible time.  Here are some of the most common problems homeowners face with their air conditioners. Many can be avoided by regularly maintaining your HVAC unit.


close up of person fixing ac

  1. Your air conditioning unit won’t turn on.

This might be a situation that you can fix yourself. First, check your thermostat’s batteries, and replace them if they’re dead. If this isn’t the problem, check to see if the thermostat’s cooling mode is on with your desired temperature settings. Next, see if the circuit breaker may have tripped, in which case flip the switch off and on again.

  1. Your air conditioning unit isn’t blowing cold air.

A dirty air filter is probably the culprit in this situation. Not only does it prevent chilly air from distributing throughout your home, but a dirty filter can also potentially freeze up the condenser unit and limit the cooling power of your AC. Changing your air filter every month is the best preventative measure in this case.

  1. Your air conditioner has a frozen outside unit.

In addition to a dirty air filter, your air conditioner might freeze up because of:

  • Insufficient airflow
  • Cold temperatures
  • Coolant levels that are too low
  • Problems with the blower motor
  1. Your air conditioning unit is leaking refrigerant.

Leaky coolant will prevent the air conditioner from performing like it should, leading to uneven cooling. Refrigerant leaks can also increase energy consumption, damage the compressor, and cause the coil to freeze

  1. Your air conditioning unit doesn’t sound right.

Often you can diagnose your air conditioner’s problem by the noises it’s making. For example, thumping and rattling might signal a problem with the blower, hissing could be a refrigerant leak, screeching is usually a compressor or fan malfunction, and clicking when you turn the unit on and off might be the result of a relay problem.

  1. Your air conditioning unit has a frozen evaporation coil.

This happens when your air conditioner isn’t getting enough air to function, due to dirty filters, a broken fan, or blocked vents.

  1. Your air conditioning unit’s electric controls aren’t working.

Turning your AC on and off frequently might be causing the fan and compressor to wear out, or you might have a connection problem.

  1. Your air conditioning unit is leaking water outside.

Water leaking outside from your AC on a hot or humid day, especially when the unit is running, is considered normal, as well as if the water is leaking when the temperature is 60 degrees or less. This just means the unit has frozen and leaking as it melts. However, other causes of outside leakage include dirty air filters, blocked drainpipes, or a broken condensate pan.

  1. Your air conditioning unit has a drainage problem.

If it’s not draining correctly, your drain pipeline might have become clogged with dust, algae, and dirt. This should be addressed immediately, since it could lead to mold, fungus, and mildew developing. It might also start to filter unpleasant odors into your home. Drainage might also be impeded if the air conditioners was not mounted properly.

  1. Your air conditioning unit has a malfunctioning sensor.

All air conditioners have a thermostat sensor near but not touching the evaporator coil. This thermostat keeps track of the air temperature in the coil and adjusts coolant according to the room’s temperature. If the sensor is somehow forced out of position, the air conditioner might start to cycle constantly or randomly turn on and off.

Carrier Factory Authorized & Distinguished Dealer

Arundel Cooling & Heating is proud to be the first and only HVAC company in Maryland recognized as a Carrier Factory Authorized and Distinguished Dealer. This prestigious endorsement means we can offer you the best air conditioners, fan and evaporator coils, and other split systems products to ensure top notch comfort and energy efficiency in your home.

Contact Us For Your AC Repair and Installation Service Needs

It’s always best to call in trained professionals for any air conditioning problems. If your air conditioner breaks down when you need it most, Arundel Cooling & Heating will make sure you don’t have to suffer for long. Our friendly, experienced technicians will diagnose the problem and if necessary, arrange for a service call. We charge a convenient flat-rate fee with no mileage charges included! We also offer an emergency AC repair service, where you can talk to a real person who can help no matter what time it is. Contact us today for our high-quality AC repair service convenient to you.