Fault Codes / Daikin / E1

DAI

Daikin E1

Critical

Altherma — Outdoor unit: PCB defect.

Daikin E1: Outdoor unit: PCB defect. This fault typically halts operation and needs immediate attention.

Possible causes

Voltage spike / supply issue.
PCB component/connector faulty.

Check steps

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

Affected parts

Außen-PCB

Safety note

230/400V — isolate power.

Source: Daikin Altherma 3 Installer Ref. 4P685228-1A (2022.05) §15.4

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

Look up in Enthalio →

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