Name: Samsung NV31T4551SS
Brand: Samsung

Question 1

What does error code C-20 mean on Samsung NV31T4551SS?

Accepted Answer

Oven Sensor Malfunction. Cause: Sensor open circuit; Sensor short circuit; Sensor wire disconnection; Sensor terminal shorted on PCB.

Question 2

What does error code C-21 mean on Samsung NV31T4551SS?

Accepted Answer

Internal Oven Temperature Abnormal Error. Cause: Temperature sensor disconnected; Temperature sensor malfunction; Heater drive failure; Heater relay not operating; PCB software error.

Question 3

What does error code C-d0 mean on Samsung NV31T4551SS?

Accepted Answer

Key Short Code. Cause: Keypad membrane defective; Keypad cable not properly inserted; Short circuit between sub PCB and connector; Short circuit between keypad cable and connector.

Question 4

What does error code C-F0 mean on Samsung NV31T4551SS?

Accepted Answer

Communication Problem. Cause: Wire harness B (10pin) disconnected; Sub PCB not connected with Main PCB; Communication circuit failure.

Question 5

What does error code S-01 mean on Samsung NV31T4551SS?

Accepted Answer

Over Time Code / Safety Shutoff. Cause: Oven has operated continuously at set temperature for extended time; Temperature sensor malfunction; Control system error.

Question 6

What does error code TCO Open mean on Samsung NV31T4551SS?

Accepted Answer

Thermal Cutoff Device Open. Cause: Excessive temperature rise; Main power loss during operation causing temporary temperature spike; Defective TCO device; Sensor malfunction; Motor or fan failure.

NV31T4551SS

Error Codes

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Code	Meaning	Severity
C-20	Oven Sensor Malfunction	Moderate
C-21	Internal Oven Temperature Abnormal Error	Moderate
C-d0	Key Short Code	Moderate
C-F0	Communication Problem	Moderate
S-01	Over Time Code / Safety Shutoff	Moderate
TCO Open	Thermal Cutoff Device Open	Moderate