Name: Samsung NV51M9770DS
Brand: Samsung

Question 1

What does error code C-20 mean on Samsung NV51M9770DS?

Accepted Answer

Oven temperature sensor open circuit. Cause: Disconnected sensor harness; Broken sensor; Poor wiring connection.

Question 2

What does error code C-21 mean on Samsung NV51M9770DS?

Accepted Answer

Oven temperature control failure causing excessive heating. Cause: Defective temperature sensor; Malfunctioning relay; PCB failure.

Question 3

What does error code C-23 mean on Samsung NV51M9770DS?

Accepted Answer

Temperature probe sensor short circuit detected. Cause: Shorted probe sensor; Moisture in probe connector; Damaged probe harness.

Question 4

What does error code C-30 mean on Samsung NV51M9770DS?

Accepted Answer

PCB internal temperature sensor open circuit. Cause: Broken NTC sensor on PCB; Poor solder connection; Open circuit in sensor trace.

Question 5

What does error code C-31 mean on Samsung NV51M9770DS?

Accepted Answer

Safety shutoff due to detected overtemperature on PCB sensor. Cause: Defective NTC sensor; Sensor in contact with heating element; PCB failure; Wiring short circuit.

Question 6

What does error code C-70 mean on Samsung NV51M9770DS?

Accepted Answer

Steam temperature sensor open circuit detected. Cause: Disconnected sensor harness; Broken sensor connector; Open circuit in sensor wiring.

Question 7

What does error code C-71 mean on Samsung NV51M9770DS?

Accepted Answer

Steam temperature sensor short circuit. Cause: Shorted sensor harness; Moisture in connector; Damaged wiring insulation.

Question 8

What does error code C-72 mean on Samsung NV51M9770DS?

Accepted Answer

Drain pump failure or water sensor malfunction in steam system. Cause: Faulty drain pump motor; Clogged drain pathway; Disconnected ground wire on steam generator; Faulty pump motor connection.

Question 9

What does error code C-A2 mean on Samsung NV51M9770DS?

Accepted Answer

Cooling fan motor failure. Cause: Loose or disconnected main PCB connector; Loose or disconnected motor connector; Defective cooling motor.

Question 10

What does error code C-d0 mean on Samsung NV51M9770DS?

Accepted Answer

A control button is stuck in pressed position. Cause: Stuck oven lamp button; Stuck shower light button; Stuck Wi-Fi button; Dirty touch glass surface; Faulty main or sub PCB.

NV51M9770DS

Error Codes

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Code	Meaning	Severity
C-20	Oven temperature sensor open circuit	Critical
C-21	Oven temperature control failure causing excessive heating	Critical
C-23	Temperature probe sensor short circuit detected	Moderate
C-30	PCB internal temperature sensor open circuit	Critical
C-31	Safety shutoff due to detected overtemperature on PCB sensor	Critical
C-70	Steam temperature sensor open circuit detected	Moderate
C-71	Steam temperature sensor short circuit	Moderate
C-72	Drain pump failure or water sensor malfunction in steam system	Critical