Daikin A1

High

VRV / Sky Air — Indoor unit PCB abnormality.

Daikin A1: Indoor unit PCB abnormality. This fault noticeably affects operation.

Possible causes

PCB component or voltage spike.
Connector loose/corroded.

Check steps

Check supply & connectors on indoor PCB.
Replace PCB if fault persists.

Affected parts

Innen-PCB

Safety note

230V — isolate power.

Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — SM-TS3 p.3: 'A1 Malfunction of indoor unit PCB — Defective indoor unit PCB, External factor (Noise etc.)'

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

Look up in Enthalio →

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