Error code reference

Samsung Refrigerator Error Code 66

Door handle heater error.

SourceSamsung Refrigerator - Tech Sheet: Fast Track Troubleshooting (RF22K/RF28K)

Samsung codes Samsung refrigerator codes

Diagnostic procedure

The full 66 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

First diagnostic step

After separating MAIN PCB CN51 wire from PCB, measure resistance between CN51 pins 1 and 2; should be 135 ohm ±7%. 0 ohm = heater short, ∞ ohm = wire open.

SourceSamsung Refrigerator - Tech Sheet: Fast Track Troubleshooting (RF22K/RF28K)

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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

1 manual in the MyPros+ library documents this code for Samsung refrigerator.

Models covered by the manuals that document this code

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The full 66 procedure

Where this code is documented

Models covered by the manuals that document this code

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