Fault Codes / Daikin / E9-20
VRV / Sky Air — Defective EXV coil (Y1E).
Daikin E9-20: Defective EXV coil (Y1E). This fault usually isn't an immediate stop, but should be checked soon.
Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — ManualsLib p.69: E9 subcodes 20-22 = failure detection on Y1E/Y2E group; E9-20 falls within this range, broadly consistent with claimed meaning though exact wording ('failure detection' vs 'defective coil') is an interpr
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