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An air conditioner’s filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases. Check out our Energy Saver program for more ways to help improve your comfort and the efficiency of your air conditioner.

AIR CONDITIONER FILTERS

The most important maintenance task that will ensure the efficiency of your air conditioner is to routinely replace or clean its filters. Clogged, dirty filters block normal airflow and reduce a system’s efficiency significantly. With normal airflow obstructed, air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil’s heat-absorbing capacity. Replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption by 5% to 15%.

For central air conditioners, filters are generally located somewhere along the return duct’s length. Common filter locations are in walls, ceilings, furnaces, or in the air conditioner itself. Room air conditioners have a filter mounted in the grill that faces into the room.

Some types of filters are reusable; others must be replaced. They are available in a variety of types and efficiencies. Clean or replace your air conditioning system’s filter or filters every month or two during the cooling season. Filters may need more frequent attention if the air conditioner is in constant use, is subjected to dusty conditions, or you have fur-bearing pets in the house.

AIR CONDITIONER COILS

The air conditioner’s evaporator coil and condenser coil collect dirt over their months and years of service. A clean filter prevents the evaporator coil from soiling quickly. In time, however, the evaporator coil will still collect dirt. This dirt reduces airflow and insulates the coil, reducing its ability to absorb heat. To avoid this problem, you should have your evaporator coil cleaned every year, as necessary.

You should minimize dirt and debris near the condenser unit. Your dryer vents, falling leaves, and lawn mower are all potential sources of dirt and debris. Cleaning the area around the coil, removing any debris, and trimming foliage back at least 2 feet (0.6 meters) allow for adequate airflow around the condenser.

COIL FINS

The aluminum fins on evaporator and condenser coils are easily bent and can block airflow through the coil.  Service Tech uses a tool called a “fin comb” that will comb these fins back into nearly original condition.

CONDENSATE DRAINS

Occasionally pass a stiff wire through the unit’s drain channels. Clogged drain channels prevent a unit from reducing humidity, and the resulting excess moisture may discolor walls or carpet.

PREPARING FOR WINTER

In the winter, covering the outdoor unit of a central air conditioner will protect the unit from winter weather and debris.

HIRING A PROFESSIONAL

Your air conditioner needs regular maintenance, so hire a professional service technician. A well-trained technician will maintain your system and be able repair any problems in your air conditioning system, before you have a major repair expense.

Service Tech maintenance includes:

OUTDOOR SECTION 

  • Clean dirt, leaves, and debris from inside the outdoor unit cabinet.*
  • Inspect outdoor coil and cabinet – clean as necessary.*
  • Inspect fan motor and blades – lubricate as needed.*
  • Inspect control box, associated controls, wiring and connections.*
  • Inspect compressor and associated tubing for damage.*
  • Check amperage draw.*

INDOOR SECTION 

  • Inspect blower assembly, fan belt, and motor.*
  • Inspect indoor coil, drain pan, and condensate drain lines.*
  • Inspect for gas leaks.
  • Inspect burner assembly – clean and adjust as necessary.
  • Inspect ignition system and safety controls – clean and adjust as necessary.
  • Inspect heat exchanger or heating elements.
  • Inspect flue system – remember carbon monoxide is dangerous.
  • Inspect control box, associated controls, wiring, and connections.*
  • Inspect air flow – check for leaks.*
  • Inspect or replace filter.*

WITH SYSTEM OPERATING

  • Monitor for starting capabilities.*
  • Listen for abnormal noise.*
  • Check system for correct refrigerant charge.*
  • Check system for correct gas pressure.
  • Check system for correct amp draw.*
  • Check duct work for dirt.*

ADDITIONAL BENEFITS:

  • IMPROVE EFFICIENCY AND EXTEND EQUIPMENT LIFE
  • IMPROVE CAPACITY
  • PRIORITY CUSTOMER
  • INFLATION PROTECTION
  • AGREEMENT IS TRANSFERABLE
  • ENERGY EFFICIENCY REPORT CONCERNING ATTIC INSULATION
  • 24 HOUR EMERGENCY SERVICE

*Services that may be performed in the Spring service appointment.

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