Samsung E218

Medium

DVM PLUS III — Installed indoor unit count exceeds the MCU settings.

Samsung E218: Installed indoor unit count exceeds the MCU settings. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Too many indoor units connected to one MCU group.
MCU capacity setting not matched to the actual installation.

Check steps

Count indoor units connected per MCU and compare with specification.
Redistribute excess units to additional MCUs or correct configuration.

Affected parts

MCU (Multi Control Unit)

Safety note

De-energize before servicing.

Source: Samsung resmi servis kilavuzu (bagimsiz cift-dogrulandi) — Samsung DVM PLUS III Technical Data Book, ManualsLib, sayfa 60 — "E-218: Setting error of indoor unit's quantity on MCU's PCB. (The quantity of installed indoor units exceeds the setting number of the MCU's PCB.)"

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

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