DAI

Daikin H0

High

VRV / Sky Air — H0 = malfunction of the compressor sensor system (general) — caused by disconnected/defective harness or a defective PCB, NOT specifically a voltage/current sensor fault. Applies only to RA and Chiller units (not VRV/SkyAir/Package/Fan Coil).

Daikin H0: H0 = malfunction of the compressor sensor system (general) — caused by disconnected/defective harness or a defective PCB, NOT specifically a voltage/current sensor fault. Applies only to RA and Chiller units (not VRV/SkyAir/Package/Fan Coil). This fault noticeably affects operation.

Possible causes

Current/voltage sensing (PCB) faulty.
Wiring/connector loose.

Check steps

Check supply & connectors on inverter PCB.
Replace inverter PCB if fault persists.

Affected parts

Inverter-Platine

Safety note

High voltage! Let capacitors discharge.

Source: Daikin resmi servis kılavuzu — DÜZELTİLDİ: Daikin Industries Ltd., "Simple Self-Diagnosis by Malfunction Code" (SM-TS3), After Sales Service Division, p.3 (Malfunction Code table, Outdoor Unit section): Code H0 = "Malfunction of sensor system of compressor." Supposed causes: "Harness is disconnected, or defective connecti…

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

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