Toshiba L07

Medium

Multi-Type (SVM-21073) — Connection of group control cable error — there is at least one indoor unit to which group wiring is not connected.

Toshiba L07: Connection of group control cable error — there is at least one indoor unit to which group wiring is not connected. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Group control wiring not connected on one or more units.

Check steps

Check group control wiring on all units in the group.

Affected parts

Gruppensteuerungskabel

Safety note

Isolate power before testing.

Source: Toshiba Air Conditioner (Multi Type) Service Manual SVM-21073 <1-way cassette type>, §8-4 Check Codes Displayed on Remote Controller / §8-5 Diagnostic Procedure for Each Check Code

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

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Related fault codes

No master remote control / failure receiving sE01 Failure remote control — signals cannot be traE02 Indoor-remote controller periodic communicatioE03 Duplicated master remote control — both remoteE09 Communication trouble between main MCU and theE10 Communication trouble between flow selector (FE17