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Williams 6501912 Filter
The filter in the wall unit is there for trapping really small dust parts and other particles as it is being forced through the system. This can both protect the unit and make it work much more efficient while, at the same time, filtering the air in your home. Because it is really easy to do, the filter should be swapped out for a new one or possible scrubbed clean at least twice a year if not more, depending on how much you use it.
Hints of a failing filter
- If you hold it up to the light, it will hardly shine through to the other side of a dirty filter
- Many pros have advised to replace your air filter about every 90 days to keep the unit running efficiently
- The system air filter looks dusty and should be replaced immediately
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