Samsung Refrigerators2017–present

Error Code 81

Compressor motor will not start when system tries to run

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: F-Comp Startup Failure

What This Means

Short circuit between compressor U/V/W lines; Short circuit in IPM (Intelligent Power Module) pins; IPM operation voltage dropped below DC13.5V; Compressor locked or restricted; Refrigerant cycle issue

What actually causes this:

Electrical short in compressor circuit or inverter failure

First Thing to Check

Check compressor terminals for loose or corroded connections

Parts Involved

Freezer CompressorInverter PCB (IPM)Compressor Connector CN04Refrigeration Cycle

How to Fix

  1. 1

    Check for short between Comp U/V/W (CN04) connector

  2. 2

    Verify IPM pins #1-26 have no shorts

  3. 3

    Measure IPM operation voltage (should be above DC13.5V)

  4. 4

    Check compressor for restriction

  5. 5

    Verify refrigeration cycle is not blocked

This Error Applies To

Samsung BRF425200A Series Refrigerators (2017) (2017–present)

Service manual exact match: BRF425200AP/AAService manual exact match: DRF427500AP/DAService manual exact match: DRF429900AP/DAService manual exact match: DRF425300AP/DA

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