Carpet cleaner will not pick up dirty water, E7 displayed, dirty water tank icon flashing

Safety first: Unplug before removing tanks.

• Empty dirty water tank: Remove the recovery tank and empty it completely. Rinse with warm water to clear foam and residue.
• Check float valve: Inside the tank, locate the float (often a plastic cup or ball). Ensure it moves freely up and down. Clean off any soap scum or debris that may cause sticking.
• Inspect tank lid and seals: Check the lid gasket for deformation or tears. Make sure the lid is fully closed and latched when refitting.
• Clear inlet: Clean the inlet port where dirty water enters the tank. Remove hair or fibres that may restrict flow.
• Reset and test: Refit the tank securely and power on. If E7 persists with an empty, correctly fitted tank, the float switch or level sensor may be faulty and require replacement.