Error Code C-d0
Shorted keypad keys detected
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-d0
What This Means
Keypad cable disconnected from Sub PCB connector; Shorts between Sub PCB connector and keypad cable; Defective Sub PCB
What actually causes this:
Moisture, debris, or damaged keypad circuitry causing electrical shorts
First Thing to Check
Disconnect power and visually inspect keypad cable connections for damage or moisture
Parts Involved
How to Fix
- 1
Check whether keypad cable is inserted into connector on Sub PCB
- 2
Check for shorts between Sub PCB connector and keypad cable
- 3
Inspect Sub PCB for damage or corrosion
Other Error Codes for NQ70M7770DG
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Loss of communication between control boards
Temperature probe sensor short circuit detected
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