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Samsung NE58K9500SGOvens & Range

Error Code E-21

Temperature sensor circuit is broken open

Moderate

Address soon - your appliance may not work properly

Also displayed as: E-21

What This Means

Sensor harness disconnected; Sensor connector not properly inserted (CN201 main PCB or CN02 sub PCB); Oven sensor failure - internal open circuit; Damaged sensor harness or terminal

What actually causes this:

Sensor failure or harness disconnection/damage

First Thing to Check

Measure sensor resistance at room temperature - should be 1000 ohms

Parts Involved

Sensor-ThermistorMain PCB CN201 connectorSub PCB CN02 connectorSensor harness

How to Fix

  1. 1

    Check whether connector (CN201) of main PCB has been inserted

  2. 2

    Check whether connector (CN02) of sub PCB has been inserted

  3. 3

    Measure oven sensor resistance - should be ~1000Ω at room temperature

  4. 4

    Check connector seating on both main and sub PCBs

Other Error Codes for NE58K9500SG

E-83

Main and sub control boards cannot communicate

-SE-

Keypad circuit short detected

E-2E

Meat probe is shorted or has short circuit

E-SE

Keypad has a short circuit

E-22

Temperature sensor wires are shorted together

E-dE

Oven partition divider switch is not responding

E-24

Oven temperature is dangerously high

E-0E

Door lock mechanism is not responding

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