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XCMG · E4050
Controller internal temperature abnormal

What this code means

Controller internal temperature abnormal (E4053: below -30 C; E4054: above 80 C).

Applies to: XE215/XE315/XE150 excavators.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (E4050), machine model and serial number — we quote genuine and OEM replacement parts for export.

Source: XCMG excavator alarm & fault code table (徐工挖掘机报警故障信息统计), Scribd docs 736520125 & 441150619 (two copies agree). Cross-checked in two independent sources. Compiled 2026-10-30. No manufacturer affiliation.