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5
Motor fan error
•
Does the low-voltage power fan rotate at power ON?
• No Is 34V output to fuse F7 on the engine board (K7N PWB)?
•
No Is 34V output to the power connector on the engine board (K7N PWB)?
34V: Pin 12, 13, 14
No Check the cable connections, then replace the low-voltage power unit.
▼• Yes Replace the engine board.
▼• Yes Was the low-voltage power board replaced?
•
Yes End.
▼• No Replace the low-voltage power board.
▼• Yes
Does the engine board fan rotate at power ON?
• No Is 34V output to fuse F7 on the engine board (K7N PWB)?
•
No Is 34V output to the power connector on the engine board (K7N PWB)?
34V: Pin 12, 13, 14
No Check the cable connections, then replace the low-voltage power unit.
▼• Yes Replace the engine board.
▼• Yes Replace the engine board fan.
▼• Yes
End.