PCB Care

Blue Star E1 Error Code

ODU Coil Medium-High Error.

ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
ODU Coil Medium-High Error

Cause: Outdoor coil temperature abnormally high

How to fix: Check condenser cleanliness, outdoor fan operation, and refrigerant overcharge.

Blue Star boards that may fix E1

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

b5b7C5E0E2E4E5E6E8ECEEEU