Jackson dishwasher chemical pumps run but no detergent or rinse aid is being drawn from containers.

Safety first: Wear chemical-resistant gloves and eye protection.

• Verify chemical level and pickup: Ensure containers are adequately filled and suction tubes reach the bottom. Check that foot filters are submerged.
• Inspect tubing for leaks: Look for cracks or loose connections on suction side. Replace any compromised tubing.
• Replace peristaltic tubing: On peristaltic pumps, replace flattened or chemically degraded tubing inside the pump head.
• Prime pumps: Use the manual prime function to draw chemical through lines until bubbles are purged and steady flow is observed.

After restoring prime, run a test cycle and confirm correct dosing volumes.