Blue Star EC Error Code
Refrigerant Leak Detection.
ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
Refrigerant Leak Detection
Cause: System detected refrigerant leak or low charge
How to fix: Leak test system, repair leak point, evacuate and recharge to spec.
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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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