Essick Air Intermittent Water Level or Tank Presence Detection

Humidifier will not start unless the tank is jiggled or pressed down.

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

Worn or misaligned tank switch, Float not rising properly, Bottle not seating fully on valve, Deformed tank base or gasket

Safety first: Unplug the unit before inspection.

Inspect tank seating: Ensure the tank sits flat and fully engages the base. Clean any debris from the tank recess.
Check float movement: Verify that the float moves freely and is not obstructed by scale or dirt.
Inspect tank switch: Some models use a micro-switch to detect tank presence. Check that the actuator moves when the tank is installed and that the switch is firmly mounted.
Adjust or replace switch: If the switch is loose or worn, tighten or replace it with the correct Essick Air part.

Medium 3/5

Tank Presence Switch / Float Switch

Check Price on Amazon

We may earn a commission from links on this page.