PCB Care

Reconnect F4 Error Code

Outdoor exhaust sensor failure.

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Outdoor exhaust sensor failure

Cause: Sensor fault

How to fix: Replace sensor

Reconnect boards that may fix F4

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

Other Reconnect codes

E0E1E2E3E4E5E6E8E9EAEBEC01