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Samsung Refrigerators2019–present

Error Code 13E

Humidity sensor voltage is outside valid range (0.6V to 4.7V)

Moderate

Address soon - your appliance may not work properly

Also displayed as: 13E

What This Means

Humidity sensor output voltage below 0.6V (open) or above 4.7V (short); Bad connector at CN60 pin 7; Open or short in humidity sensor circuit

What actually causes this:

Failed humidity sensor, moisture ingress on sensor or connector near left fridge door

First Thing to Check

Check CN60-7 to CN60-16 resistance with power off; ~50 ohm is open-state normal

Parts Involved

Humidity SensorMAIN PCBConnector CN60Resistor R218

How to Fix

  1. 1

    With power off, measure resistance at CN60-7(W/YEL) to CN60-16(FLAT_WHT); normal open resistance is ~50 ohm

  2. 2

    Check MICOM IC01 pin #8 input voltage with power on

  3. 3

    Verify voltage of Resistor R218

  4. 4

    Compare sensor output to humidity sensor table: 0% RH = 909mV, 100% RH = 3683mV

This Error Applies To

Samsung RF28R7551S Series Refrigerators (2019) (2019–present)

Service manual exact match: RF22R7551**Service manual exact match: RF22R7551DTService manual exact match: RF28R75*Service manual exact match: RF28R7551SGService manual exact match: RF22R75*Service manual exact match: RF28R7551DTService manual exact match: RF28R7551**Service manual exact match: RF22R7551SG

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