Fault Codes / Mitsubishi Heavy / E9

KX / FD — Drain water level abnormality (float switch)

Possible causes

• Condensate pump not clearing water
• Blocked condensate drain
• Faulty float switch

Check steps

• Clean condensate drain
• Check pump and float switch

Affected parts

• Kondensatpumpe
• Schwimmerschalter

Safety note

Source: Mitsubishi Heavy KX-T-378 Servis Kılavuzu, s.152

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

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