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Error code reference
Samsung Refrigerator Error Code R-DEF. Error
Defrost system in FF compartment errors; sensor connector missing, contact failed, temperature fuse failure, or defrost finished due to 80-minute time limit.
Diagnostic procedure
The full R-DEF. 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
After separating MAIN PCB CN70, CN71 from PCB, check resistance between CN70 White <-> CN71 Orange: shall be 110 (441) ohm +/- 7%. 0 Ohm = heater short, infinite Ohm = wire/bimetal open.
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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