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What does your AC sound like when it runs normally during summer? You first hear the fan motor turn on, and then a deep whirring sound indicates the compressor is operating. The compressor puts refrigerant under pressure so it can start the process of pulling heat from the indoor air, which the blower then sends into the ductwork.
You can expect to hear the compressor running for 10–15 minutes, sometimes longer, to reach your desired cooler temperature. When your AC was installed, it was sized so that it would run in cooling cycles of about this length.
If you notice that your AC is running for much longer than 15 minutes, or even not shutting off at all unless you turn off the cooling mode from the thermostat, you have a potential problem on your hands. We’ll examine why this might happen, and whether it means you need to arrange for AC repair with our technicians.