Fault Codes / York / 18

YO

York 18

High

YCAS / YVAA — Phase sequence or phase loss.

York 18: Phase sequence or phase loss. This fault noticeably affects operation.

Possible causes

Phases swapped / missing.

Check steps

Check 3 phases; swap 2 if needed.

Affected parts

Phasenwächter
Sicherungen
Klemmenblock

Safety note

400V — isolate power.

Source: York YCAS/YVAA Service Manual

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

Look up in Enthalio →

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