Unit shuts down with E7 when used on high pile carpet; restarts after cooling.

Safety first: Unplug the carpet cleaner and allow it to cool before inspection.

• Clean all filters: Remove and clean the pre-motor filter, exhaust filter, and any foam or mesh filters in the air path. Wash foam filters with mild detergent and let them dry completely before reinstalling.
• Check air vents: Inspect the side and rear vents for dust buildup. Use a soft brush or vacuum to clear them.
• Inspect for internal blockages: Remove the hose, wand, and floor nozzle. Check for clogs in each section and in the main suction inlet at the base.
• Verify correct usage: On very thick carpets, use a slower pace and avoid pressing down excessively, which can restrict airflow.
• Thermal protector check: If the unit trips quickly even when clean and lightly loaded, the thermal protector on the motor may be weak and require replacement along with the motor assembly.