Error Code C-d1
Door lock mechanism positioned incorrectly or not functioning
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-d1
What This Means
Door lock switch improperly connected; Door lock motor malfunction; Incorrect door lock motor resistance; Insufficient voltage to door lock motor; Door locking switch failure
What actually causes this:
Motor failure, loose connections, misaligned latch body, or worn door lock mechanism
First Thing to Check
Disconnect power and check all connections to door lock motor and switch
Parts Involved
How to Fix
- 1
Disconnect power
- 2
Check harness connection to door lock switch and motor
- 3
Measure door lock motor resistance (should be 1600-2200Ω at room temperature)
- 4
Measure voltage at door lock motor terminals (should be AC 120V)
- 5
Check whether door locking switch is working normally
Other Error Codes for NQ70M7770DG
PCB internal temperature sensor malfunction
Control board temperature exceeds safe limit
Water not draining from oven cavity after cycle completion
Shorted keypad keys detected
Loss of communication between control boards
Temperature probe sensor short circuit detected
Magnetron or convection cooling fan not operating correctly
Temperature sensor open circuit or short detected during operation