HIS

Hisense 45

Critical

Hi-Flexi — Activation of high pressure increase protection device.

Hisense 45: Activation of high pressure increase protection device. This fault typically halts operation and needs immediate attention.

Possible causes

Condenser poor airflow, refrigerant overcharge, or fan failure.

Check steps

Clean condenser, check fan, verify charge.

Affected parts

Verflüssiger

Safety note

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Source: HMS Intesis KNX - Hisense VRF User Manual, "Error Codes For Indoor And Outdoor Units" p.24-26 (ManualsLib scan of official Intesis gateway manual)

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

Look up in Enthalio →

Related fault codes

Communication malfunction.03 Indoor unit drain pan / float switch abnormali01 Outdoor unit — protection shutdown.02 Transmission error indoor ↔ outdoor.04 Power source phases abnormal.05 Abnormal inverter voltage / voltage drop.06