Topics:

• Does the air purification fan make noise?
• Is there a fan motor associated with the air purification cartridge?
• Does the "Pure Air" mode cause a fan motor to run?
• Air filtration system making a buzzing or humming noise

Answer:

The two main parts of the air purifier are a replaceable cartridge and a small fan below the cartridge.

• The fan drives the refrigerator compartment air through the cartridge.
• When activated, the UV light in the filter cartridge and the fan motor under the cartridge are energized 100% of the time, unless the refrigerator door is opened or the unit is in Showroom Mode.

If the fan noise seems excessive:

1. Cycle the "Pure Air" mode off and back on. See Air Filter Operation for instructions and information.
2. Replace the air purification cartridge.
3. Refer to Sub-Zero Refrigerator or Freezer Noises.

If these steps do not resolve the issue, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.