Fault Codes / Daikin / A9

High

VRV / Sky Air — Electronic expansion valve (indoor) fault.

Possible causes

• EXV coil faulty / connector loose.
• Valve mechanically stuck.

Check steps

• Check EXV coil (resistance) & connector.
• Check valve operation/initialisation.

Affected parts

• Expansionsventil-Spule (EXV)

Safety note

Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — SM-TS3 p.3: 'A9 Malfunction of electronic expansion valve — Defective electronic expansion valve coil, Defective indoor unit PCB, Defective relay cables.'

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

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