The whistling air conditioner

My air conditioning has been producing a mysterious whistling sound lately.

The sound is faint.

If I’m watching cable or busy doing something, I can’t hear it, but when I’m trying to fall asleep at night, it is legitimately distracting. The whistling isn’t constant; it only happens when the air conditioning activates. That makes it even more annoying. If it whistled constantly, I could learn to tune it out. It’s making me believe I’m going crazy. The rest of my family says that they cannot even hear it, but I haven’t had a good night’s sleep in over a month. So, I called our air conditioning dealer. The HVAC professional came out and readjusted the little door that closes in the air filter. The whistling stopped! Apparently, my husband had not closed the door properly when he changed the filter last week. Air rushing through the little gap in the door caused that whistling noise! I am delighted it was such a simple fix. I wish I had thought to try opening and closing the door myself. It would have saved me money. At least I wasn’t crazy, though – the sound existed even if no one else could hear it. I hope I get a good sleep tonight. I bet I will, since the sound is gone.


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