Error Code C-70
Steam sensor circuit is open - no temperature feedback
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-70
What This Means
Steam sensor connector not inserted; Steam sensor wire broken; Steam sensor failure; Main PCB failure
What actually causes this:
Loose connector, broken wire, or failed sensor
First Thing to Check
Inspect and reseat steam sensor connector at Main PCB (CN340)
Parts Involved
How to Fix
- 1
Check steam sensor connector at Main PCB (CN340)
- 2
Check steam sensor connector at sensor
- 3
Measure steam sensor resistance
- 4
Verify wire harness continuity
Other Error Codes for NQ70M9770D
Temperature sensor internal to Main PCB is not functioning
Keypad short circuit detected
Temperature sensor reading exceeds safe operating threshold
Door lock mechanism malfunction or misalignment
Meat probe sensor circuit shows abnormally low resistance
Bake heating element not energizing during self-test
Main control board temperature sensor reads excessive heat
Partition configuration changed during active cooking cycle