Common reasons an AC runs but doesn't cool include a clogged filter, incorrect thermostat settings, or a dirty outdoor unit. Professional help is needed for issues like refrigerant leaks, ice on the ...

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We did a piece on possible reasons why your window air conditioner isn't cooling, now it's time for central air conditioners. When your AC runs but the house stays hot, the first thing to check is ...

When the mercury rises outside, nailing down why your AC is not cooling becomes a top priority. There are eight common reasons why this happens, including dirty filters, and some of which you can fix ...

If your air conditioner seems like it isn't cooling your home as efficiently as normal (or at all), then you'll want to address it as soon as possible. You should start by inspecting the thermostat, ...