Rug Doctor carpet cleaner solution tank remains full; no solution is used during cleaning even though the pump can be heard.

Safety: Turn off and unplug the unit before removing the tank.

• 1. Test tank valve: Remove the solution tank and press the bottom valve stem. Water should flow. If not, clean or replace the valve.
• 2. Inspect tank seal: Check the tank-to-base seal for damage or misalignment. Replace if it does not seal tightly.
• 3. Check pickup tube: Access the base and verify the solution pickup tube is connected from the tank port to the pump. Reattach if disconnected.
• 4. Clean inlet filter: Clean any inlet screen or filter at the tank connection point.

Tip: Always seat the tank firmly to engage the valve and seal.