Things to Check Before You Call for an Air Conditioning Repair
Will give you 5 simple tips that will help you internally check if there is a problem in AC, which needs expert intervention or minor leaks that can be rectified at home.

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Check your thermostat if it is set properly
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Do you check your disposable air filter from time-to-time?
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Do you check the equipment door?
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Check the circuit breaker
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Check your outside unit- Is it running or not?