Blue Star E2 Error Code
IDU Coil Frozen Protection.
ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
IDU Coil Frozen Protection
Cause: Indoor coil temperature too low, risk of freezing
How to fix: Check refrigerant charge, indoor filter cleanliness, and indoor fan speed/airflow.
Blue Star boards that may fix E2
If the board is the cause, these refurbished Blue Star boards are in stock. Match the part number before you order.
Bluestar F35BS 1 Ton Outdoor PCB
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Bluestar Godrej GRJ519-A3 V1 Non Inverter PCB
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