How many does it take to change a light bulb?
Two: One to screw it in almost all the way, then a second to give it a good twist at the end.
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Two: One to screw it in almost all the way, then a second to give it a good twist at the end.
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Keep It Clean
A dirty filter causes your air conditioner to work harder than necessary. Remember to change your air filter every month (or every two months) to prevent dust buildup, which can lead to even bigger problems.
Source: energy.gov