Error code reference

LG Dishwasher Error Code bC

Button/key input error (S/W ver. 7134+)

Button/key input error (S/W ver. 7134+): button pressed and held for 30 seconds or longer; keeps going remaining cycle.

First step from the service manual

Check whether there is condensation on the PBA connectors.

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

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
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bC on my LG LDP6797ST

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Button/key input error (S/W ver

From Service Manual 584906, p.38:

1.Check whether there is condensation on the PBA connectors.

2.Measure control board supply voltage at the test points. Expected: 12 VDC and 5 VDC; a drop below 4.75 VDC on the logic rail points to a failed onboard regulator.

3.Inspect all connectors on the main control for corrosion, thermal stress, or backed-out pins. Reseat each connector with the power disconnected.

Part EBR73304205

Main control board

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First step from the service manual

Get the full diagnostic procedure for bC.

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