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Emily HughesAug 16, 2025
Why is my Fujitsu Halcyon ASU9RLQ cooling poorly?
- DDustin PaceAug 17, 2025
Poor cooling performance can occur if the air filter is dirty, the intake grille or outlet port is blocked, the room temperature settings are incorrect, a window or door is open, bright sunlight enters the room (during cooling), there are heating devices or too many people in the room (during cooling), or the unit is set to SUPER QUIET operation. Check these possible causes and adjust accordingly.