Is it definitely coming from the unit itself as opposed to some shift/movement that is now vibrating window parts?
bub said:
Is it definitely coming from the unit itself as opposed to some shift/movement that is now vibrating window parts?
No, it's a loud blowing sound, not a mechanical rattle.
If you lower the fan speed does the noise decrease? There’s a bearing in the motor that could be dried out. Sounds like a lubrication issue. It’s been a busy summer for window ac units.
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For some reason, my big window a/c unit has gotten much louder in the last week. I cleaned the filter. Any ideas?
Thanks.