A Affordable Air Inc.
Rochester, NH · 03839 Tested before replaced

AC Not Turning On in Rochester, NH Near Me

Thermostat calling and nothing happens? We trace AC not turning on problems in Rochester, NH from the fuse to the float switch. Call (866) 703-1217.

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Central Air Repair
Tested Before Replaced
Price Before Work
Common Parts on the Truck
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AC Not Turning On in Rochester, NH

AC not turning on in Rochester, NH is a control problem more often than a mechanical one. The thermostat calls for cooling, nothing happens, and the house heats up. Our crew starts on the low voltage side because that is where the answer usually is.

The 24 volt control circuit runs from a transformer in the air handler or furnace to the thermostat and out to the condenser. A blown 3 amp fuse on the control board kills the whole thing. So does a float switch in the drain pan that tripped because the condensate line backed up. That safety switch is doing its job, and the real fix is clearing the drain line.

Other causes on our list: dead thermostat batteries, a loose wire at the thermostat base, a tripped breaker at the panel, a pulled disconnect at the outdoor unit and a failed transformer. On older systems we sometimes find a rodent has chewed the thermostat cable where it runs along the foundation.

We test each point with a meter and show you the reading. Call (866) 703-1217 when your AC not turning on leaves you guessing.

How a repair call works

Four steps to central AC repair in Rochester, NH

01

Call and describe it

Tell us what the system is doing: warm air, no power, ice on the lines, water in the pan. That narrows the list before our crew arrives in Rochester, NH.

02

We measure first

Our crew reads temperature split, refrigerant pressures, capacitor values and amp draw, so the diagnosis rests on numbers and not a guess.

03

Price before work

You get the repair price before we start. If a part costs more than the system is worth, we say so.

04

Test and walk through

After the repair we run the system, check the split again and show you what we found and what we fixed.

Coverage

Central AC Repair Services Across Rochester, NH

Central AC repair across Rochester, NH, from older homes still running R-22 systems to newer builds with SEER2 equipment. Call (866) 703-1217.

Neighborhoods we cover for central AC repair

  • Downtown Rochester
  • East Rochester
  • Gonic

ZIP codes we serve

03839 03867 03868
AC Not Turning On in Rochester, NH

Central AC Repair FAQs

Common questions about central AC repair

Questions we hear about AC Not Turning On in Rochester, NH.

Talk to our crew
How much does central AC repair cost?
It depends on the part. A capacitor or contactor is a small repair. A refrigerant leak or a compressor is a much bigger one. We diagnose first, then give you the price before any work starts, so you decide with the number in front of you.
What does SEER2 mean for my repair or replacement?
SEER2 is the efficiency rating used for new central AC equipment since January 2023. Minimums differ by region, with higher minimums in the South and Southwest than in the North. It does not change how we repair your current system, but it matters if you are weighing repair against a new unit.
Can you just add refrigerant to my AC?
We can, but it rarely makes sense on its own. A central AC system is sealed, so low refrigerant means a leak. Topping it off without fixing the leak means the charge leaks out again. We find the leak, repair it and weigh in the correct charge.
Why does my AC keep tripping the breaker?
Common causes are a compressor struggling to start because of a weak capacitor, a shorted fan motor, a compressor with a winding shorted to ground, or loose and overheated wiring. Resetting the breaker over and over can make it worse. Leave it off and call us.
What should I do before the technician arrives?
Check that the thermostat is set to COOL and below room temperature, check the breaker and the outdoor disconnect, and look at the filter. If there is ice, turn cooling off and run the fan. If there is a burning smell, shut the breaker off and leave it off.

Get a central AC repair quote

Need Central AC Repair in Rochester, NH? Call now.

Tell us what your system is doing and our crew will diagnose it, give you the price before work and fix it. Call (866) 703-1217.

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