Display shows LO; dishwasher may not start or may pause; often indicates low rinse aid or door not fully closed depending on model.

Safety note: This is usually a status indicator, not a failure.

• Refill rinse aid: Open the rinse aid dispenser and fill it with a compatible rinse aid until full. Wipe up any spills.
• Check door closure: Ensure the door closes firmly and latches with an audible click. Remove any items blocking the door.
• Inspect latch strike: If the door feels loose, adjust the metal latch strike on the tub frame so the door pulls in tightly.
• Sensor issues: If LO persists despite a full dispenser, the rinse aid sensor in the dispenser assembly may be faulty and require replacement.