Dehumidifier is very noisy or rattles during operation

Safety first: Unplug the unit before tightening screws or accessing internal parts.

• Step 1 – Level the unit: Ensure the dehumidifier is on a flat, solid surface. Adjust feet if provided.
• Step 2 – Check for external causes: Remove any objects touching the cabinet that could vibrate. Ensure the bucket is fully seated.
• Step 3 – Tighten screws: Inspect and tighten all accessible cabinet and grille screws.
• Step 4 – Inspect fan and blower (advanced): Remove the cover to access the blower wheel and fan motor. Check for debris caught in the wheel and ensure it is firmly attached to the motor shaft.
• Step 5 – Check compressor mounts: Look at the rubber grommets under the compressor. If they are cracked or missing, vibration will increase and they should be replaced.

When to call a technician: If noise is traced to the compressor itself (knocking, metallic sounds), the compressor may be failing and professional evaluation is needed.