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Error code reference
Samsung Refrigerator Error Code R-DEF-Sensor Error
Defrost sensor system in fresh food (FF) compartment has errors such as connector missing, contact failure, wire cut, or short-circuit.
Diagnostic procedure
The full R-DEF-Sensor Error 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 voltage of MAIN PCB CN30#8 <-> CN76#1: shall be between 4.5V~1.0V.
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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