Fault Codes / Midea / F1

Midea F1

Critical

DC bus voltage protection (inverter).

Midea F1: DC bus voltage protection (inverter). This fault typically halts operation and needs immediate attention.

Possible causes

Mains voltage out of tolerance.
Inverter board/rectifier faulty.

Check steps

Measure mains voltage (check tolerance band).
Check inverter board for fault code/damage.

Affected parts

Inverter-Platine

Safety note

230V — isolate power.

Source: Midea 2nd Gen VRF Servis Kılavuzu, Tablo 6-1.1 s.38 — DÜZELTİLDİ (2026-07-04): kod önceden yanlışlıkla 'Raumtemperaturfühler-Fehler' olarak etiketlenmişti, kılavuz F1='DC bus voltage protection' diyor, oda sensörüyle ilgisi yok

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

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