Error code reference

Samsung Refrigerator Error Code oP Er

Option setting mismatch between MAIN PCB and PANEL PCB; displayed when model option settings are not…

Samsung codes Samsung refrigerator codes

Option setting mismatch between MAIN PCB and PANEL PCB; displayed when model option settings are not identical.

First step from the service manual

Verify that option settings on both MAIN PCB and PANEL PCB are identical.

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
Verified part numbers when replacement is required

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oP Er on my Samsung RF28R7351SG

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Option setting mismatch between MAIN PCB and

From Service Manual 962770, p.22:

1.Verify that option settings on both MAIN PCB and PANEL PCB are identical.

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 DA92-00384N

Main PCB assembly

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First step from the service manual

Get the full diagnostic procedure for oP Er.

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