PCB Care

Blue Star L1 Error Code

Drive Phase Voltage Overload Protection.

ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
Drive Phase Voltage Overload Protection

Cause: Compressor drive phase voltage too high

How to fix: Check PCB drive circuit and compressor wiring for shorts.

Blue Star boards that may fix L1

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