Fault Codes / Mitsubishi Electric / 7102

Mitsubishi Electric 7102

High

City Multi — Wrong number of connected units.

Mitsubishi Electric 7102: Wrong number of connected units. This fault noticeably affects operation.

Possible causes

Too many indoor units on TB3.
TB7 (central) wrongly on TB3 / line loose.

Check steps

Check unit count on TB3 vs limit.
Check TB3/TB7 wiring & SW5-7.

Affected parts

Übertragungsleitung

Safety note

Low voltage — work carefully.

Source: Mitsubishi Electric resmi servis kılavuzu — CityMultiErrorCode_V3.pdf p.8: '7102 Wrong number of connected units - Check whether the number of units connected... does not exceed the limitation'.

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

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