PCB Care

IFB E4 Error Code

AC Cooling System Abnormal.

ac
AC Cooling System Abnormal

Cause: Gas leakage or blocked valve

How to fix: Inspect refrigerant leakage and valves

IFB boards that may fix E4

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

Other IFB codes

bcbfbjDOE0E1E2E3E5E6E7E8