Trigger on the handle feels loose or does not spring back, and spray is intermittent or stuck on.

Safety first: Unplug the carpet cleaner before opening the handle.

• Open handle housing: Remove screws to access the trigger mechanism.
• Inspect trigger components: Check the plastic trigger, pivot points, and return spring. Replace any broken or deformed parts.
• Clean valve or switch: If the trigger operates a mechanical valve, clean it of detergent residue. If it operates a micro-switch, ensure the actuator is correctly aligned and the switch clicks when pressed.
• Lubricate lightly: Apply a small amount of silicone-safe lubricant to the pivot if it feels stiff (avoid getting lubricant on electrical contacts).

A properly functioning trigger should move smoothly and return to the rest position without sticking.