For Service Call:
(410) 424-0911



Carrier Factory Authorized Dealer
technician working on heat pump

Maintaining Your HVAC System

Regular maintenance saves you money.

Regular maintenance will help your system run more efficiently and prolong its useful life. According to the US Department of Energy, "heating and cooling account for about 56% of the energy use in a typical U.S. home, making it the largest energy expense for most homes." Regular maintenance can reduce this cost by as much as 30%.

Some items that need periodic attention are:

Filters
A dirty filter will prevent adequate air flow across the coils. If a filter is really dirty, ice can build up on the coil. Symptoms of a dirty filter can be reduced cooling, reduced air flow, and water from melting ice around the base of the air handler. ESA recommends changing your filter at least every three months.
Coils
Dirty coils will reduce the amount of heat exchange that can take place across the coils. Your heating and cooling system has two coils, an "evaporator coil" in the air handler inside and a "condensing coil" in the heat pump or air conditioner outside.
Symptoms of a dirty coils include icing, inadequate cooling or heating, and high electric bills.
Refrigerant
Occasionally, a system will develop a refrigerant leak. Symptoms of a refrigerant leak might include reduced cooling capacity, an outdoor unit that runs all the time, and high electric bills.

Regular maintenance also helps prolong the life of your equipment.

If a fan has to work under an increased strain because of blocked air flow or a compressor has to run longer to meet demand because of low refrigerant, they will wear out sooner. Replacing the multi-stage motors and compressors in today's equipment is an expensive repair. Regular maintenance can help you postpone or even avoid these premature breakdowns.

Environmental Systems Associates can help you maintain your equipment with a Planned Maintenance Agreement.

Read MorePlanned Maintenance Agreements


  • Environmental Systems Associates, Inc.
  • 9375-J Gerwig Lane, Columbia MD 21046
  • Lic. HVACR MD 01-2939