Model: MAP20USWHBB

Issues

Common Causes of Noise in Mila Air Purifiers

1. High Fan Speed: Operating the purifier at higher fan speeds can naturally result in increased noise levels.plentifulair.com+1aircaring.com+1

2. Clogged or Dirty Filter: Over time, filters can accumulate dust and debris, causing the fan to work harder and produce more noise.manualshelf.com+3heatertips.com+3aircaring.com+3

3. Improper Placement: Placing the unit too close to walls or furniture can obstruct airflow, leading to increased noise.

4. Loose Components: Internal parts may become loose over time, causing rattling or buzzing sounds.

5. Firmware Issues: Occasionally, software glitches can affect the unit's operation, leading to unexpected noises.

Troubleshooting Steps

1. Adjust Fan Speed: If the noise is due to high fan speed, consider lowering it via the Mila app or the unit's control panel.

2. Inspect and Replace Filter:

   • Turn off and unplug the unit.

   • Open the filter compartment and check for dirt or damage.

   • Replace the filter if it's dirty or hasn't been changed in the recommended timeframe.docs.milacares.com+2manualsfile.com+2plentifulair.com+2

3. Relocate the Unit: Ensure the purifier is placed at least 12 inches (30 cm) away from walls or furniture to allow proper airflow.

4. Check for Loose Parts: Gently shake the unit to detect any loose components. If you hear rattling, contact Mila support for guidance.docs.milacares.com

5. Perform a Reset:

   • Turn off and unplug the purifier.

   • Wait for 30 seconds.

   • Plug it back in and turn it on.

   • This can resolve minor software glitches

Parts

Problem

Noisy at any speed.

Conclusions

Performed teardown and manually spun fan/blower. Definitely the source of the problem. 
New fan seems hard to acquire. I think this unit is destined for the scrap pile.  

Parts

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References