Fault Codes / Mitsubishi Heavy / E5

Critical

KX / FD — Communication error during operation.

Possible causes

• Faulty indoor/outdoor signal line.
• Incorrect terminal resistance setting.

Check steps

• Check signal line.
• Check terminal resistance.

Affected parts

• Kommunikationsplatine

Safety note

Source: Mitsubishi Heavy KX-T-378 Servis Kılavuzu, s.149

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

Look up in Enthalio →

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