Air Conditioning Repair Services

When your home or business central air conditioning system starts exhibiting problems there are a few simple, troubleshooting steps that one can do before picking up the phone to call a heating and air conditioning repair contractor.

There are two separate components in a central air conditioner: the condenser and the evaporator. The condenser unit is usually located outside the house on a concrete slab while the evaporator coil is mounted in the plenum or main duct junction above the furnace.

Central air conditioners are made up of two separate components: the condenser unit,
located outside the house on a concrete slab, and the evaporator coil above the furnace.

Central air conditioners need professional maintenance, but there are a few minor problems that can be easily fixed. The following chart can be used to troubleshoot for possible do-it-yourself repair jobs. Caution: Both the evaporator and the condenser are sealed and will need the expertise of a professional service person for almost any maintenance other than routine cleaning.CENTRAL AIR CONDITIONER TROUBLESHOOTING CHART


Possible cause 



doesn’t run

1. No power.


1. Check for blown fuses or tripped

circuit breakers at main entrance

panel or at separate entrance

panel; restore circuit.

  2. Thermostat set

too high.

2. Lower thermostat setting 5°.
  3. Motor faulty. 3. Call a professional.
  4. Compressor


4. Call a professional.
Uneven cooling


1. Distribution

system out of


1. Balance system.




1. Thermostat set

too high.

1. Lower thermostat setting 5°.
  2. Evaporator dirty. 2. Clean evaporator
  3. Unit too small. 3. Call a professional; replace with larger unit;
Unit doesn’t 1. Thermostat set 1. Lower thermostat setting 5°.
cool     too high.  
  2. Condenser dirty. 2. Clean condenser coil and fins;
        if necessary, straighten fins.
  3. Condenser unit 3. Remove debris blocking condenser;
      blocked.     cut down weeds, grass, and vines.
  4. Compressor faulty. 4. Call a professional.
  5. Not enough

refrigerant in system.

5. Call a professional.
Condenser unit

turns on and

off repeatedly

1. Condenser dirty.

2. Condenser unit


1. Clean condenser coil and fins.

2. Remove debris blocking condenser;

cut down weeds, grass, and vines.



Sometimes the problem might be related to the air conditioning coolant which is usually Freon. If the system does not contain the proper amount of Freon, little or no cooling will take place. A home or business owner should never try to add refrigerant to the system. Call a professional air conditioning repair technician to recharge the system. Caution: Do not try to charge your system’s refrigerant lines.

Another cause for cooling problems can be damaged or worn coolant lines which would cut down on the cooling efficiency of the unit. To repair the system’s coolant lines examine the lines running from the condenser outside the evaporator inside the house. If the insulation appears damaged or worn they should be replaced with new insulation of the same type as soon as possible. Follow manufacturer’s instructions for installation.

If all of the above checked out and the problem persists, the next best thing to do is to call an air conditioning repair contractor to diagnose the problem. To avoid damaging the system which could result in higher repair costs, home and business owners should never try to work on the unit or system themselves if at all possible.

As a leader in providing affordable and effective HVAC solutions, Day Aire Air Conditioning takes pride in their vast knowledge and experience with working with top brands of air conditioners, pumps, and systems. For equipment restorations, they have a reliable team of completely licensed and insured technicians whose expertise is continuously honed through regular training in advanced repair techniques.

When addressing air conditioning repair problems, Day Aire starts by identifying the exact needs and budget of each customer. After taking these into consideration, they work on a realistic solution that accommodates both. Unlike other HVAC contractors who usually recommend more affordable parts or short-term fixes to reduce costs, the company facilitates affordability by offering a reliable financing plan to clients with pre-approved credit.

Apart from handling air conditioning repair jobs, the company also specializes in designing and installing highly efficient air-conditioning, heating, ventilation, and air purification systems for both residential and commercial clients. The company has long believed in the advantages of putting the interests of their customers first.

Having been in the business for more than 25 years proves their professionalism, which is also evident in the quality services and products they offer. We serve Inland Empire, Ontario, and Rancho Cucamonga, CA. For more information, click here or visit