Error code reference

Samsung Refrigerator Error Code FZ-DEF

Freezer defrost error: defrost heater housing separation, contact error, disconnection, short circuit, or temperature fuse error; defrost does not finish after heating continuously for more than 80 minutes. Also covers freezer fan motor feedback signal line error, motor wire separation, or motor error.

SourceSamsung RF31FMED Refrigerator - Tech Sheet: Fast Track Troubleshootingp. 5, 6

Samsung codes Samsung refrigerator codes

Diagnostic procedure

The full FZ-DEF procedure

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MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check fan motor voltage at CN76-Pin 5 (Sky-blue) to CN76-Pin 1 (Gray), should be 7V~12V. For heater, remove cable CN70 from Main PCB and measure resistance: CN70 Brown to CN70 Gray should be 63(230) ohm ±7%.

SourceSamsung RF31FMED Refrigerator - Tech Sheet: Fast Track Troubleshootingp. 5, 6

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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

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

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full FZ-DEF procedure

Where this code is documented

Models covered by the manuals that document this code

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