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Error code reference
Samsung Refrigerator Error Code 21Er
Freezer fan (F-FAN) error: feedback signal line contact error, motor wire separation, or motor error during operation.
SourceSamsung RS5300TC Side-by-Side Refrigerator - Service Manualp. 78
Diagnostic procedure
The full 21Er 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
The voltage of MAIN PCB CN20 15PIN - 17PIN shall be between 7V~12V.
SourceSamsung RS5300TC Side-by-Side Refrigerator - Service Manualp. 78
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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