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Error code reference
Samsung Refrigerator Error Code F4
FZ-FAN Error: feedback signal line contact error, motor wire separation, or motor error during operation of the freezer fan motor.
SourceSamsung RF220NCTASR/AA Refrigerator - Full Service Manualp. 45
Diagnostic procedure
The full F4 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
Measure voltage at MAIN PCB CN76-"3" (Yellow) ↔ CN76-"1" (Gray); shall be between 7V ~ 12V.
SourceSamsung RF220NCTASR/AA Refrigerator - Full Service Manualp. 45
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
2 manuals in the MyPros+ library document this code for Samsung refrigerator.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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