Why does punching an appliance sometimes seem to fix it?

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So I live in military barracks and i have a shitty fridge in my room. It started making this horrible noise, and out of desperation I landed a solid right hook to the side of it. Like magic, the noise stopped. This has happened numerous times in my life. Something is broken, and some brute force fixes it. What happens inside that could solve the problem from percussive force?

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Anonymous 0 Comments

It’s called Percussive Maintenance. It shares the same military-related acronym with Preventative Maintenance, but don’t get them confused, soldier. Percussive Maintenance causes additional problems like structural issues. You could just tap the fan blade to reproduce the same temporary fix. In the end, you’ll need to replace the fan or motor. Put in a work order to have it fixed.

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