DAI

Daikin E3-02

Critical

VRV / Sky Air — High pressure: overcharge or closed stop valve.

Daikin E3-02: High pressure: overcharge or closed stop valve. This fault typically halts operation and needs immediate attention.

Possible causes

Refrigerant overcharge.
Gas/liquid stop valve closed.

Check steps

Check both stop valves are OPEN.
Check charge vs nameplate.

Affected parts

Absperrventil
Kältemittel

Safety note

High-pressure side — hot & pressurized. Follow F-Gas.

Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — ManualsLib p.69: E3 subcodes 02,04,06 = 'High Pressure Switch Reset Error' / related high-pressure group; E3-02 confirmed as high-pressure-related fault (exact sub-grouping wording varies slightly between fetches but con

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

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