Error code reference

Samsung Refrigerator Error Code 40

Ice Room Fan Error - Displayed when the Ice Maker (FZ) kit separates more than 3 times or is not leveled.

SourceSamsung RF261BEA Refrigerator - Tech Sheet: Fast Track TroubleshootingSelf Diagnosis Checklist, page 10

Diagnostic procedure

The full 40 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 cable connection; if no problem, replace Main and Panel PCB after confirming with oscilloscope.

SourceSamsung RF27T5 French Door Refrigerator - Full Service Manualp. 79

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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