E4021

For F0x series controllers

TCPIP) Communication error. Code=XX Dst.IP=XX.XX.XX.XX

Applicable equipment

Source: Fault JSON · 川崎F0x系列故障码_中英双语.json · SHA-256 c9e188cf7751063d8ac0a17d2003715fa98ef62c73e75c336f9a17d00d9d9391 · E4021

Brand	Kawasaki
Updated	2026-10-27

E4021

TCPIP) Communication error. Code=XX Dst.IP=XX.XX.XX.XX

Applicable equipment

Source: Fault JSON · 川崎F0x系列故障码_中英双语.json · SHA-256 c9e188cf7751063d8ac0a17d2003715fa98ef62c73e75c336f9a17d00d9d9391 · E4021

Brand	Kawasaki
Updated	2026-10-27