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That popping sound is likely sediment buildup in the tank. You can flush it yourself — turn off the gas/power, attach a hose to the drain valve...

Mike R.· Verified Pro

If it keeps tripping with nothing plugged in, the GFCI itself may be faulty. But first check for moisture in the box — bathroom outlets are prone to this.

Sarah K.· Verified Pro

Start by checking your breaker panel — compressors often have their own circuit. Also check the capacitor, which is a common failure point.

Tom B.