Common Issues

The Most Common Air Conditioning Problems

Although there are potentially hundreds of reasons why your home’s central air conditioner may need to be repaired, there are a few reasons that are quite common. Knowing what they are may help you to understand what a technician is referring to when you need to discuss the options for correcting the problem. Here are the top six problems that may cause your air conditioning system to break down. Please review these considerations and determine whether you need to schedule an HVAC inspection

6. No power to system

This is commonly a blown fuse or a tripped breaker. Check the breaker inside the house, and check the fuse panel next to the air conditioner. If these seem to be working properly, then call for service to see what the problem is.

5. Faulty wiring

Improper, haphazard or uncertified A/C wiring is dangerous and a potential fire hazard. Bad wiring often prevents the system from getting power, or can trip the circuit breaker.

4. Low refrigerant

Refrigerant (more commonly referred to as Freon) is the chemical that cools the air. Low refrigerant may indicate a leak or problem with the refrigerant system.  If your air conditioning system needs to be recharged with refrigerant, typically that means there is a leak.  All refrigerant leaks should be located and repaired.

3. Outside fan is not working

The outside fan is responsible for transferring the heat from your home to the outside air.   If the fan on the outside unit doesn’t run, proper heat transfer is not taking place and the air conditioning compressor may overheat and trip the safety overload. Worse yet, it may cause internal damage to the compressor.

2. Outside unit not functional

This typically indicates lack of power, contactor problems or even a faulty thermostat.

1. Frozen Inside coil

A frozen coil often indicates a problem with the airflow, such as restrictions caused by dirty air filters or blocked return air ductwork.  Frozen indoor coils could also be caused by low refrigerant.

In many cases, the only way a homeowner can prevent these common problems is by participating in a preventative maintenance program . Bad wiring, low refrigerant and airflow problems can be detected during routine maintenance tune-ups.