An outdoor air conditioning condenser unit positioned on a concrete pad next to a blue-sided house, surrounded by green shrubs and flowering hydrangeas at sunset.

AC Repair in Chestertown, MD

Air conditioners here run from June through September. If yours quits, tell us what it's doing and a licensed contractor who covers Kent County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Overhead view of a gray residential air conditioning condenser unit mounted on a concrete pad beside a house with asphalt shingle roofing.

Four months of hard running in Chestertown heat

Your air conditioner works June through September here, with summer afternoons averaging 86°F. That is the stretch where it runs longest and hardest, cycling for hours to hold the house steady. The compressor and the capacitor that starts it take the brunt of that load, and a weak capacitor shows up as a unit that hums but won't start, or a compressor that shuts off on its own on the hottest afternoons.

Kent County has seen its share of wind, with 98 damaging wind events recorded over the past ten years. Wind that strong can knock debris into an outdoor unit or rock it on its pad, and a unit that's taken a hit sometimes develops a refrigerant leak or a bent fan that wasn't a problem the week before.

4 months
June through September, your air conditioner is on duty
86°F
the average summer afternoon it cools against
3 hail events
in ten years, and hail bends the fins on outdoor coils
98 wind events
in ten years, and wind drives debris into outdoor units
Isometric line illustration of a cutaway house showing an indoor air handler with branching ducts in the attic space, connected by a line set to an outdoor condenser unit beside the building, with simple furniture in two rooms.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Overhead view of an outdoor AC condenser unit on a concrete pad next to a house with a dark shingle roof.

A new air conditioner would cut about $40 a year off cooling for a typical Kent County home.

  • A new one at the federal minimum, 14.3 SEER2$320 a year
  • An older air conditioner$360 a year

Estimates for a typical Kent County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Maryland fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when a part like a capacitor or contactor has failed.

Replacement makes sense when the compressor has failed or the system uses R-22 refrigerant, which is no longer made.

Maryland requires HVAC contractors to hold a state license.

Maryland licenses HVAC contractors through the state's Board of Heating, Ventilation, Air Conditioning, and Refrigeration Contractors. The license belongs to the contractor, not to each job, so the same license that covers an installation across town is what covers the repair at your house.

Fixing an air conditioner means opening the refrigerant side of the system, and federal law requires the technician doing that to hold an EPA Section 608 certification. That rule applies everywhere in the country, not just Maryland. Here it sits alongside the state license rather than replacing it, so the contractor working on your unit is licensed by the state and certified under that federal rule.

Sources: Maryland General Assembly · Maryland Department of Labor

Why is my AC not blowing cold air?
The most common cause is a dirty air filter choking off airflow. Pull the filter out and hold it up to a light. If it's clogged, replace it and see if that fixes things. If the filter is clean and the air still isn't cold, the system likely has a refrigerant leak, and only a technician with EPA Section 608 certification can legally handle that side of the system.
Why is my AC leaking water?
Water around your AC usually means the condensate drain line is clogged. As the system cools your home, it pulls moisture out of the air, and that water is supposed to run out through the drain line. Algae and dirt build up in that line over time and block it, so the water backs up and drips out somewhere it shouldn't. A frozen evaporator coil can cause the same problem when it thaws and produces more water than the drain pan can handle.
Why won't my AC turn on?
Start with the thermostat. Check that it's set to cool and the temperature is below the room temperature, and replace the batteries if it has a blank screen. If the thermostat looks fine, check your breaker panel. A tripped breaker will shut the whole system down. Chestertown sees a fair number of damaging wind events each year, and storms like that can trip a breaker or, in worse cases, damage the outdoor unit itself. If the breaker won't stay reset, that points to a problem a contractor needs to look at.