Float / full tank indicator triggers prematurely, suction stops even when recovery tank is not full

Safety: Unplug the machine before removing tanks.

• Inspect recovery tank: Remove the dirty water (recovery) tank. Locate the float valve assembly (usually a plastic float in a cage).
• Clean float and cage: Rinse thoroughly to remove hair, lint, and detergent residue that may cause sticking. Ensure the float moves freely up and down.
• Check tank lid seal: Inspect the gasket between the tank and the main body. A misaligned or damaged seal can cause incorrect airflow and premature float lift. Reseat or replace the recovery tank lid seal.
• Reassemble and test: Refit the tank carefully, ensuring it is fully seated. Test with a small amount of water.
• If electronic sensor is fitted: Inspect the wiring to the tank level sensor and clean any scale or residue from the sensor body.