Fault Codes / Daikin / 8H

DAI

Daikin 8H

High

Altherma — Outlet (flow) water temperature abnormally high.

Daikin 8H: Outlet (flow) water temperature abnormally high. This fault noticeably affects operation.

Possible causes

Water flow too low.
Air in system / weak pump.
Flow thermistor faulty.

Check steps

Check flow, pump & air purge.
Check flow thermistor (R10T).

Affected parts

Umwälzpumpe
Vorlauf-Thermistor

Safety note

Hot water — scald risk.

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.

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