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Samsung Refrigerators2018–present

Error Code 85

Household power supply is too weak

Moderate

Address soon - your appliance may not work properly

Also displayed as: 85C

What This Means

Household voltage is too low (brownout condition); Power supply to refrigerator is weak; Excessive voltage drop in house wiring; Defective power cord or loose connections

What actually causes this:

Home electrical system has a brownout or voltage drop condition

First Thing to Check

Check if other lights or appliances are dimming

Parts Involved

Power Supply InputHouse Electrical System

How to Fix

  1. 1

    1. Measure input voltage at refrigerator power cord with multimeter — normal 115V ± 10%

  2. 2

    2. Check if error occurs during specific times (indicating household voltage issue)

  3. 3

    3. Ask customer if other appliances are dimming

  4. 4

    4. Check power cord and wall outlet for loose connections

  5. 5

    5. If voltage is consistently below 106V, inform customer of house wiring issue

This Error Applies To

Samsung RF22N9781 Series Refrigerators (2018) (2018–present)

Service manual exact match: RF22N9781Service manual exact match: RF28N9780

Related Error Codes

1

Freezer temperature sensor malfunction

6

Room temperature sensor not working

14

Ice maker temperature sensor failure

2

Fridge temperature sensor is not responding

9

Convertible zone temperature sensor failure

15

Ice storage area temperature sensor malfunction

4

Freezer defrost sensor is faulty

11

Convertible zone defrost sensor malfunction

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