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Valerie MullenAug 16, 2025
How to fix Uni-ram Ultrasonic Jewelry Cleaner when wash pump makes pumping sound but liquid does not flow?
- AAmber LarsenAug 16, 2025
If the Uni-ram Ultrasonic Jewelry Cleaner's wash pump makes a pumping sound but liquid doesn't flow from the jets, there might be a few reasons. First, check if the drain valve is closed and open it by placing it in a vertical position. Second, the liquid level might be too low; ensure it's at least half full, up to 4 gallons (11 L). Finally, there could be debris in the pump or suction and output hose. In this case, follow Procedure 1, "Blocked Fluid Passage in Diaphragm pump".



