DAI

Daikin L0

Critical

VRV / Sky Air — Inverter system malfunction (general).

Daikin L0: Inverter system malfunction (general). This fault typically halts operation and needs immediate attention.

Possible causes

Inverter/compressor circuit fault — check sub-code.
Overload / INV PCB component fault.

Check steps

Read sub-code.
Check INV PCB & compressor.

Affected parts

Inverter-Platine
Verdichter

Safety note

High voltage! Let DC-link capacitors discharge before work.

Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — SM-TS3 p.4: 'L0 Malfunction of inverter system — Shortage of power supply capacity, Defective power transistor, Defective outdoor unit PCB' — exact match.

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