DAI

Daikin E5

Critical

VRV / Sky Air — Inverter compressor overload / motor lock.

Daikin E5: Inverter compressor overload / motor lock. This fault typically halts operation and needs immediate attention.

Possible causes

High condensing pressure (soiling/overcharge).
Stiff compressor / winding.
Supply voltage low/unstable.

Check steps

Check overload causes (condenser, charge, fan).
Power off: measure winding resistance & insulation.
Check supply voltage & phases.

Affected parts

Verdichter
Inverter-Platine

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.3: 'E5 Inverter compressor motor or overheat — Inverter compressor lock, High differential pressure, Defective inverter PCB, UVW connection error, Defective connector contact.'

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