Fault Codes / Mitsubishi Heavy / E63

KX / FD — Emergency stop of indoor unit (external contact).

Possible causes

• External safety/emergency contact triggered.

Check steps

• Check external safety device & wiring.

Affected parts

• Kein Ersatzteil — Einstellung/Konfiguration prüfen (DIP, Menü, Untercode)

Safety note

Source: Mitsubishi Heavy resmi servis kılavuzu — Mitsubishi Heavy KX-T-378 p.186: 'E63 Emergency stop... When ON signal is inputted to the CnT terminal of indoor unit control PCB.' Matches app's 'Notabschaltung Innengerät (externer Kontakt).'

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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