PCB Care

Blue Star L3 Error Code

Outdoor DC Fan Fault.

ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
Outdoor DC Fan Fault

Cause: Outdoor DC fan motor not rotating or feedback lost

How to fix: Check fan motor windings, Hall sensor feedback wire, and fan blade obstruction.

Blue Star boards that may fix L3

If the board is the cause, these refurbished Blue Star boards are in stock. Match the part number before you order.

Other Blue Star codes

b5b7C5E0E1E2E4E5E6E8ECEE