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Error code reference
Samsung Refrigerator Error Code 81C
Compressor IPM fault error / Compressor start failure error / Compressor location detection error.
SourceSamsung French Door Refrigerator - Service Manual (RF28K/RF85K)p. 75
Diagnostic procedure
The full 81C 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 inverter PCB soldering for short circuits; check if DC 15V output is less than 13.5V; check compressor wire connections and cycle.
SourceSamsung French Door Refrigerator - Service Manual (RF28K/RF85K)p. 75
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
4 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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