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Friedrich SH15L30-B Fan Blade
The motor spins the blade which produces a nice flow of air that was heated or cooled by the wall unit. The blade also pulls air in which helps out with keeping the heating or cooling system cool while running.
Subtle cues of a laboring fan blade
- The fan blade produces a very unhealthy sound when it is spinning down
- The unit blade looks shattered or perhaps beat up in a way
- The primary fan blade has problems as it tries to blow the correct amount of air as it tries to change the temp
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