Fault Codes / Copeland / 9 Flashes

CO

Copeland 9 Flashes

Critical

CoreSense — Low voltage (supply too low).

Copeland 9 Flashes: Low voltage (supply too low). This fault typically halts operation and needs immediate attention.

Possible causes

Mains undervoltage / phase issue.
Loose terminal.

Check steps

Measure supply voltage.
Check terminals & feed.

Affected parts

Netzteil-Platine
Sicherungen
Spannungsregler

Safety note

230/400V — isolate power.

Source: Emerson AE8-1385 CoreSense Diagnostics, Tablo 1/2 s.9,11

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

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