Error code reference

Samsung Refrigerator Error Code High

Freezer room defrost sensor (F-DEF-Sensor) system error - sensor housing missing, poor contact, wire disconnection, short circuit, or sensor detection temperature is 65°C or above or -50°C or below.

SourceSamsung RT Series Refrigerator - Full Service Manual (RT50-RT63W)p. 41, 62

Samsung codes Samsung refrigerator codes

Diagnostic procedure

The full High procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check voltage between MAIN PCB CN30 No.4 and No.3 (or No.7 depending on board type) (must be within 4.5V~1.0V range).

SourceSamsung RT Series Refrigerator - Full Service Manual (RT50-RT63W)p. 41, 62

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

1 manual in the MyPros+ library documents this code for Samsung refrigerator.

Models covered by the manuals that document this code

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The full High procedure

Where this code is documented

Models covered by the manuals that document this code

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