PCB Care

IFB E1 Error Code

IDU Room Temperature Sensor Failure.

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IDU Room Temperature Sensor Failure

Cause: Indoor room temperature sensor failure

How to fix: Check IDU sensor and PCB

IFB boards that may fix E1

If the board is the cause, these refurbished IFB boards are in stock. Match the part number before you order.

Other IFB codes

bcbfbjDOE0E2E3E4E5E6E7E8