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Error code reference
Samsung Refrigerator Error Code 1Er
Freezer sensor error: separation of sensor housing part, contact error, disconnection, short circuit, or detected temperature more than 65°C or less than -50°C.
SourceSamsung RS5300TC Side-by-Side Refrigerator - Service Manualp. 77
Diagnostic procedure
The full 1Er 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
When measuring the voltage between Main PCB CN20 1PIN - 3PIN, it should read between 4.5V~1.0V.
SourceSamsung RS5300TC Side-by-Side Refrigerator - Service Manualp. 77
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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