Fault Codes / Airwell / bb
VRF Engineering Manual — Overheating protection triggered (indoor unit).
Airwell bb: Overheating protection triggered (indoor unit). This fault typically halts operation and needs immediate attention.
Source: Airwell VRF Series Air Conditioner Engineering Manual, "Fault And Protection Code List" p.301 (ManualsLib scan of official manual)
Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.
Look up in Enthalio →