Error code reference

Samsung Refrigerator Error Code F-1-b

F Sensor (freezer compartment temperature sensor) error - sensor housing separation, contact error, disconnection, short circuit, or sensing temperature above 149°F (+65°C) or below -58°F (-50°C).

SourceSamsung Refrigerator Bottom Mount Freezer - Full Service Manual (RF195/RF215/RF197/RF217)p. 33-34

Diagnostic procedure

The full F-1-b 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 #5 ↔ #8: shall be between 4.5V~1.0V.

SourceSamsung Refrigerator Bottom Mount Freezer - Full Service Manual (RF195/RF215/RF197/RF217)p. 33-34

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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