Fault Codes / Mitsubishi Heavy / E49
KX / FD — Low pressure protection (suction too low).
Mitsubishi Heavy E49: Low pressure protection (suction too low). This fault typically halts operation and needs immediate attention.
Source: Mitsubishi Heavy resmi servis kılavuzu — Mitsubishi Heavy KX-T-378 p.179: 'E49 Low pressure anomaly... Detection of anomalously low pressure... When the low pressure sensor detects lower than 0.003MPa for 5 seconds continuously.' Matches app's 'Niederdruck-Schutz (Saugdruck zu niedrig).'
Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.
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