Some Essick Air models display CF2 or a second filter reminder and reduce output.

Safety first: Unplug the unit before servicing.

• Replace the wick: Remove the old wick filter and install a new OEM Essick Air wick appropriate for your model. Do not attempt to wash and reuse heavily scaled wicks.
• Clean air passages: Vacuum or wipe dust from the intake and exhaust grilles to restore airflow.
• Reset CF2: Follow the user manual procedure (often holding the Filter Reset button for several seconds) to clear the CF2 indicator.
• Verify operation: After reassembly, run the unit on high and confirm strong airflow and normal humidity output.