Samsung Ovens & Ranges2020–present

Error Code C-70

Steam generation temperature sensor circuit open

Moderate

Address soon - your appliance may not work properly

Also displayed as: C-70

What This Means

Steam sensor not inserted at main PCB; Steam sensor connector not inserted at sensor; Defective temperature sensor; Main PCB failure

What actually causes this:

Disconnected steam sensor connector or failed sensor element

First Thing to Check

Check if connectors are fully inserted at CN340 and steam sensor

Parts Involved

Steam temperature sensorWire harnessMain PCB

How to Fix

  1. 1

    Check if connector at main PCB has been inserted (CN340)

  2. 2

    Check if connector at the steam sensor has been inserted

  3. 3

    Verify connectors are inserted correctly at both ends

This Error Applies To

Samsung NV51M9770S Series Ovens & Ranges (2020) (2020–present)

Service manual exact match: NV51M9770SSService manual exact match: DOB30P977SS

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