Samsung Refrigerators2013–present

Error Code 8E

Cool Select Room defrost sensor is failed or loose

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 8E

What This Means

Sensor connector slipped out at CN30; Open or short circuit in wire; Failed defrost thermistor

What actually causes this:

Defrost sensor connector loosened or thermistor failed from repeated thermal cycling.

First Thing to Check

Remove the Cool Select Room evaporator cover and check whether the defrost sensor connector is firmly seated.

Parts Involved

Cool Select Room defrost thermistor (DTN-C502)Bimetal thermostat (BT-121-M)Temperature fuseMain PCBCN30 connector

How to Fix

  1. 1

    Check voltage between Main PCB CN30 pins 11 and 13 — should be 4.1V to 0.8V

  2. 2

    Measure resistance between CN30 pins 13 and 11 for CV-DEF sensor

  3. 3

    Check resistance at CN70 pins 3 and 1 for Cool Select defrost heater

This Error Applies To

Samsung RF32FM Series Refrigerators (2013) (2013–present)

Service manual exact match: RF32FM**Service manual exact match: RF32FMQDBSR/AA

Need more help with your Samsung refrigerators?