Fault Codes / Toshiba / E06
TO
Toshiba E06
High
SMMS / SMMS-e — No communication to indoor unit
Toshiba E06: No communication to indoor unit This fault noticeably affects operation.
Possible causes
- Broken communication line
- No power at indoor unit
- Faulty indoor/outdoor PCB
Check steps
- Check communication wiring (U1/U2)
- Check indoor power supply
- Check addressing
Affected parts
- Kommunikationsleitung
- Innengerät-Platine
- Außengerät-Platine
Safety note
Isolate power before working on PCBs.
Source: Toshiba SMMS-i Quick Reference FILE NO. A11-005
Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.
Look up in Enthalio →
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