Error code reference

LG Dishwasher Error Code 9E

Low-level water error

Low-level water error: high level sensor not detected after water supply, or low level sensor detected over 5 seconds during wash.

First step from the service manual

Check the connections for the Water-level sensor connectors.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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9E on my LG LDP6797ST

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Low-level water error: high level sensor not

From Service Manual 586175, p.27:

1.Check the connections for the Water-level sensor connectors.

2.Measure the inlet valve coil resistance at the valve connector. Expected: 1,000 to 1,200 ohms per coil at room temperature.

3.Verify static water supply pressure at the inlet hose. Below 20 psi or fluctuating supply commonly triggers fill-timeout faults.

Part 5220FR2006H

Water inlet valve

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