How to Fix Samsung Refrigerator Error 85E

Error Code: Refrigerator Difficulty: Hard

Problem: Compressor under voltage error; insufficient voltage supply causing compressor protection shutdown

How to Fix Refrigerator Error

1. Verify household voltage at refrigerator outlet using multimeter. Must maintain 110-120V AC during compressor operation.
2. Check circuit breaker panel to ensure refrigerator’s dedicated 15-20A breaker is fully ON and not tripped.
3. Inspect power cord and terminal block connections inside refrigerator for looseness, corrosion, or arcing damage.
4. Tighten terminal block screws to 8 in-lbs torque if accessible and loose.
5. Ensure refrigerator is on dedicated circuit with no other high-draw appliances sharing the line.
6. If voltage is stable but error persists: unplug refrigerator and remove rear access panel.
7. Inspect main control board near compressor relay for burnt components or damaged traces.
8. Test compressor windings resistance per service manual specifications.
9. If compressor tests good but error continues: replace main control board using appropriate OEM part for model.
10. Restore power and monitor voltage during compressor startup to confirm stable operation without under-voltage conditions.

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Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.