Float shut-off activates prematurely, E7 displayed, suction stops even though recovery tank is not full

Safety: Unplug before removing tanks or accessing internal switches.

• Inspect float assembly:
  • Remove the recovery tank from the Henry carpet cleaner.
  • Locate the float cage and plastic float ball or flap.
  • Clean away detergent residue, lint, and debris that may cause sticking.
• Check tank seating:
  • Refit the recovery tank, ensuring it sits flat and the lid is correctly aligned with the float housing.
  • Incorrect seating can trigger the float shut-off early.
• Clean level sensor (if electronic):
  • Some models use electronic level probes; wipe them clean with a damp cloth.
• Test float microswitch:
  • Access the float switch area in the machine base.
  • Manually move the float and listen/feel for the microswitch click.
  • Test with a multimeter; replace the float microswitch if it remains closed when float is down.