Error code reference

Sub-Zero Refrigerator Error Code LO C

Control panel locked - door switch detected as depressed (door closed) but control panel keys were touched.

SourceSub-Zero Classic (formerly Built-In) Enhancements (7040319): After Serial 4380000: Service Manualp. 2-34

Diagnostic procedure

The full LO C 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
Repair door switch problem, disconnect power, reconnect. Within 5 minutes of power up, hold ALARM and touch either COLDER key twice.

SourceSub-Zero Classic (formerly Built-In) Enhancements (7040319): After Serial 4380000: Service Manualp. 2-34

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

2 manuals in the MyPros+ library document this code for Sub-Zero refrigerator.

Models covered by the manuals that document this code

More models are covered than are listed here.

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