Unit operates but performance is weak after long storage.

Safety first: Unplug the unit before maintenance.

• Flush system: Fill the fresh water tank with warm water (no detergent) and run the pump to dissolve dried residues.
• Clean filters: Wash or replace all solution and motor protection filters.
• Exercise components: Run the brush and vacuum for short intervals to free up bearings. If unusual noises persist, inspect motors.
• Inspect seals: Check tank and hose seals for shrinkage or cracking and replace as needed.