Daikin E5-01

Critical

VRV / Sky Air — Inverter compressor 1 lock.

Daikin E5-01: Inverter compressor 1 lock. This fault typically halts operation and needs immediate attention.

Possible causes

Compressor mechanically locked / winding.
High differential pressure at start.

Check steps

Power off: measure winding resistance & insulation.
Allow pressure equalization, check INV.

Affected parts

Verdichter 1
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) — ManualsLib p.69: E5-01 (grouped with 02,03) = 'Compressor Overload Error [M1C]'. Confirmed by researcher's original fetch; consistent with claimed meaning (wording 'overload' vs 'locked' is a minor nuance, not a contradi

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

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