Error code reference

Samsung Refrigerator Error Code 02

Refrigerator room sensor error

Samsung codes Samsung refrigerator codes

Refrigerator room sensor error: REF sensor connector missing, contact failure, electric wire cut, short-circuit, or R-sensor itself failure. Indicates error when temperature sensed is higher than 150°F or lower than -58°F.

First step from the service manual

Check R-sensor connector for missing connection, contact failure, wire cut, or short-circuit.

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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02 on my Samsung RF28R7351SG

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Refrigerator room sensor error: REF sensor

From Service Manual 620156, p.48:

1.Check R-sensor connector for missing connection, contact failure, wire cut, or short-circuit.

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 02.

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