Error code reference

Samsung Refrigerator Error Code 66C

Door handle heater error: resistance between Main PCB CN51 pins 1 and 2 should be 135 ohm ±7%; 0 ohm indicates heater short, infinity indicates open wire.

SourceSamsung French Door Refrigerator - Full Service Manual (RF22K/RF28K)p. 97

Samsung codes Samsung refrigerator codes

Diagnostic procedure

The full 66C procedure

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MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Separate Main PCB CN51 wire from PCB; measure resistance between CN51 pins 1 and 2.

SourceSamsung French Door Refrigerator - Full Service Manual (RF22K/RF28K)p. 97

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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

3 manuals in the MyPros+ library document this code for Samsung refrigerator.

Models covered by the manuals that document this code

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The full 66C procedure

Where this code is documented

Models covered by the manuals that document this code

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