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

AC Repair in Stamford, CT

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

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An outdoor central air conditioning unit mounted on a concrete pad beside a blue-sided house at sunset.

Three months of hard work, then long rest

Your air conditioner in Stamford only has to earn its keep June through August. On summer afternoons that average 81°F, it runs hard, then sits idle the rest of the year.

That stretch of not running is hard on the parts that start the system. A capacitor can weaken over the months off, and the first hot day of summer is when it shows. The unit hums but the fan doesn't turn, or it doesn't start at all.

3 months
June through August, your air conditioner is on duty
81°F
the average summer afternoon it cools against
Isometric cutaway illustration of a small house showing interior rooms, ductwork, an indoor air handler, and an outdoor condenser unit connected by lines, on a plain white background.
Your air conditioner works hardest from June through August.

NOAA 1991–2020 monthly normals

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.

A new air conditioner would save little on running costs in Stamford, so the repair decision comes down to the unit's condition.

  • A new one at the federal minimum, 13.4 SEER2$290 a year
  • An older air conditioner$310 a year

Estimates for a typical Stamford home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Connecticut 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.

Connecticut requires HVAC contractors to hold a state license.

The state tests contractors before they get this license and keeps a record of who holds one. It covers the contractor, not the specific job, so the same license that lets someone install a furnace also covers a repair like this one.

Your air conditioner has a sealed refrigerant circuit, and opening it takes more than the state license. Anyone working on that side of the system, in Connecticut or any other state, needs EPA Section 608 certification. That's a federal requirement, separate from the license, and it exists because refrigerant work is the part of the job the state license alone does not test for.

Sources: Connecticut General Assembly · Connecticut Department of Consumer Protection

Why is my AC not blowing cold air?
The most common cause is a dirty air filter cutting off airflow over the coil. Check the filter first and replace it if it looks gray or clogged. If the filter is clean and the air is still warm, the evaporator coil may be frozen or the system may be low on refrigerant. Running it in that state can damage the compressor, so a licensed contractor should look at it before you run it any longer.
Why is my AC leaking water?
This usually means the condensate drain line is clogged, or the evaporator coil froze and is now thawing. As your AC cools the air it pulls moisture out of it, and that water normally runs out through a drain line. When the line clogs with algae or debris, the water backs up and drips inside the house instead. If you see ice on the coil or the lines at the outdoor unit, turn the system off and let it thaw before calling a contractor.
Why won't my AC turn on?
Start with the thermostat and the breaker panel. Check that the thermostat is set to cool and the target temperature is below the room temperature. Check whether the breaker for the AC has tripped and reset it if it has. If both look fine, the problem is likely inside the unit, such as a failed capacitor or a bad contactor, and that calls for a licensed contractor to test it.