Essick Air Float or Level Control Failure

Humidifier base overfills and water spills out when tank is installed.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Float stuck in down position, Float missing or installed incorrectly, Damaged float switch, Bottle cap valve not shutting off when base is full

Safety first: Unplug the unit and remove the tank. Clean up any spilled water.

Inspect float: Locate the float in the base. Ensure it is present, correctly oriented, and moves freely.
Clean float area: Remove scale or debris that may prevent the float from rising.
Test float switch: If accessible, manually lift the float and listen for a click from the switch. If no click or the unit still overfills, the switch may be faulty.
Check bottle cap valve: Ensure the valve closes when the base is full. Replace the cap/valve if it continues to flow.

Medium 3/5

Float Assembly / Float Switch

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