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A crackling noise from a receptacle indicates an arc fault. It's the arc (electricity trying to jump across an air gap to return to its source) that you are hearing. There's most likely a loose connection on/in a receptacle. You should turn off the breaker for the circuit in question and consult a professional electrician. An arc fault can cause fire if uncorrected. ---- IF YOU'RE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.

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Q: What causes a crackling noise from an electric socket?
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