Fault Codes / York / 1

YO

York 1

Medium

YCAS / YVAA — Evaporator freeze protection.

York 1: Evaporator freeze protection. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Insufficient water flow / low refrigerant.

Check steps

Check water flow & charge.

Affected parts

Verdampfer
Strömungswächter

Safety note

Follow F-Gas.

Source: York YCAS/YVAA Service Manual

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

Look up in Enthalio →

Related fault codes

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 Phase sequence or phase loss.18