York 6

Medium

YCAS / YVAA — Invalid number of compressors selected.

York 6: Invalid number of compressors selected. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Incorrect compressor count configuration in the controller.

Check steps

Check the controller's compressor configuration against the actual unit.

Affected parts

Verdichter
Anlaufkondensator
Motorschutzschalter

Safety note

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Source: York YVAA Style A Installation, Operation & Maintenance Instructions, Table 14 "Operational and Fault/Inhibit Codes" p.114-117 (ManualsLib scan of official manual)

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

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Related fault codes

Evaporator freeze protection.1 Low pressure cutout (suction).3 High pressure cutout.4 High discharge temperature.5 Water flow switch open / no flow.9 Compressor motor current overload.14