Detergent is not being dispensed; wash water remains clear and greasy.

Safety first: Wear gloves and eye protection when handling detergent.

Step-by-step checks:

• Verify supply: Ensure the detergent container is full and the pickup tube is fully inserted.
• Prime the pump: Use the detergent pump’s manual prime function (if available) to draw chemical into the line.
• Inspect tubing: Check for air leaks, cracks, or blockages in the detergent tubing. Replace as needed.
• Test pump: With power ON and in test mode, energize the detergent pump. If it does not run, test for voltage at the pump terminals. Replace the pump if it is receiving power but not operating.

When to call a technician: If the control is not sending a signal to the pump, a technician should inspect the control output and programming.