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Error code reference

Sub-Zero Freezer Error Code SERVICE

Flashing SERVICE annunciator alone indicates excessive compressor run (tall units) or evaporator thermistor fault (base units). In 700TF/I-2V indicates excessive high-speed commands to variable speed compressor.

SourceSub-Zero Freezer - Service Manual: Integrated (700-2) Series3-13, 3-14, 3-19 through 3-21, 3-42

Sub-Zero codesSub-Zero freezer codes
Diagnostic procedure

The full SERVICE 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
Initiate Diagnostic Mode to narrow down the cause. To clear after repairs, switch unit OFF and back ON (tall units) or correct thermistor problem (base units).

SourceSub-Zero Freezer - Service Manual: Integrated (700-2) Series3-13, 3-14, 3-19 through 3-21, 3-42

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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

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

Models covered by the manuals that document this code

More models are covered than are listed here.

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