Blue Star P5 Error Code
Compressor Phase Current Protection.
ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
Compressor Phase Current Protection
Cause: Compressor drawing excess phase current
How to fix: Check compressor load, refrigerant charge, and PCB current sensing circuit.
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If the board is the cause, these refurbished Blue Star boards are in stock. Match the part number before you order.

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