DAI

Daikin H6

Critical

VRV / Sky Air — Position detection / compressor startup failure.

Daikin H6: Position detection / compressor startup failure. This fault typically halts operation and needs immediate attention.

Possible causes

Stiff compressor / no pressure equalization.
Inverter/position sensing circuit faulty.

Check steps

Allow pressure equalization before start.
Check compressor windings & inverter.

Affected parts

Verdichter
Inverter-Platine

Safety note

High voltage! Let capacitors discharge.

Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — SM-TS3 p.4: H6 'Malfunction of position detection sensor' — object table shows only RA and Package checked (not VRV/SkyAir/Chiller). Researcher correctly limited applicability to RA, Package.

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

Look up in Enthalio →

Related fault codes

Outdoor PCB faulty.E1 Refrigerant shortage (low pressure / stop valvU0 Power supply defect / brief power failure.U2 Transmission error indoor/outdoor unit.U4 Low-pressure protection / LP sensor (suction bE4 Inverter compressor instantaneous overcurrent L5