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Poor fit
The edges of the filter do not sit
properly and the filter is deformed. Fluff
will blow into the heat exchanger
unfiltered through edges that do not sit
properly. This will eventually cause
obstruction in the heat exchanger.
Deformations
Deformations indicate that the filter has
become blocked and worn by
continuous use.
Cleaning and care
Cracks, tears, indentations
Fluff will blow into the heat exchanger
unfiltered through cracks and tears and
will cause obstruction.
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