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Error code reference

Samsung Refrigerator Error Code R-defroster sensor

Refrigerator defrost sensor failure detected - connector contact failure or short-circuit (suspected below -58°F or over 150°F reading).

SourceSamsung RB2055SL Bottom-Mounted Freezer - Service Manualp. 23-24

Samsung codesSamsung refrigerator codes
Diagnostic procedure

The full R-defroster sensor 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
1
First diagnostic step
Check connector contacts and sensor for short-circuit. Measure resistance at CN30 between pins 4 and 5.

SourceSamsung RB2055SL Bottom-Mounted Freezer - Service Manualp. 23-24

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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

5 manuals in the MyPros+ library document this code for Samsung refrigerator.

Models covered by the manuals that document this code

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