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Samsung Ovens & Ranges

Error Code C-20

Oven sensor is open when operating (temperature sensor circuit open)

Moderate

Address soon - your appliance may not work properly

What This Means

Loose sensor connector; Defective temperature sensor; Broken wire in harness; Disconnected sensor at Main PCB

How to Fix

  1. 1

    Disconnect power

  2. 2

    Check Main PCB connector CN320 connection

  3. 3

    Check sensor connector connection

  4. 4

    Measure sensor resistance (normal 1080 ohms at room temp)

  5. 5

    Replace temperature sensor if connectors are properly seated

  6. 6

    Replace Main PCB if problem persists

This Error Applies To

Samsung NV51K7770S Series Ovens & Ranges

Service manual exact match: NV51M9970SSService manual exact match: NV51K7770SSService manual exact match: NV51M9770SService manual exact match: NV51K7770S

Related Error Codes

C-72

Drain system problem or water remaining after draining (water level sensor issue)

C-70

Steam sensor is open or shorted during steam mode

C-A2

Cooling motor operating abnormally

C-d0

Keys are shorted or contact issues on keypad

C-d1

Door lock is mispositioned or not operating

C-F2

Communication between Main and Touch PCB interrupted

C-30

PCB temperature sensor is open

-dC-

Partition inserted or removed while oven is operating

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