Dehumidifier makes loud rattling or grinding noise during operation

Safety: Unplug the unit before removing covers. Beware of sharp metal edges.

Steps to reduce noise:

• 1. Identify noise source: Run the unit briefly with the cover removed (only if you can do so safely) to locate whether the noise comes from the fan, compressor, or cabinet.
• 2. Check fan blade: With power off, spin the fan by hand. Tighten the set screw or clip if the blade is loose on the shaft. Replace the fan blade if cracked or warped.
• 3. Inspect fan motor: If the fan feels rough or wobbly, the fan motor bearings may be worn and the motor should be replaced.
• 4. Compressor mounts: Verify that rubber grommets and mounting bolts on the compressor are intact and tight. Replace damaged mounts.
• 5. Tighten panels: Tighten any loose screws on the cabinet. Add foam tape between vibrating plastic parts if needed.