Fault Codes / Copeland

16 codes

CoreSense

• 1 Flash — Long run time (efficiency warning).
• 10 Flashes — Over-Current Protection — current at the PROT terminal exceeds 2A for 40ms; module is mis-wired or the contactor coil is shorted to ground (Flash Code 10, red, not listed on the module label).
• 2 Flashes — Pressure switch tripped (HP or LP).
• 3 Flashes — Pressure switch cycling — compressor runs only briefly, cycle interrupted by a pressure switch (Flash Code 3, yellow).
• 4 Flashes — Locked rotor (compressor not turning).
• 5 Flashes — Compressor (Moderate Run) Trip — compressor ran 15 min to 18 hours, then a trip lasting longer than 7 minutes (Flash Code 5, yellow).
• 6 Flashes — Open Start Circuit — module detects a demand signal and current in the 'R' winding, but no current in the 'S' winding for 2 seconds (Flash Code 6, red, immediate lockout).
• 7 Flashes — Open Run Circuit — module detects a demand signal and current in the 'S' winding, but no current in the 'R' winding for 2 seconds (Flash Code 7, red, immediate lockout).
• 8 Flashes — Welded contactor (runs after stop signal).
• 9 Flashes — Low voltage (supply too low).
• Solid Red — Module fault (CoreSense module internal failure).

Scroll / CoreSense

• 3 Flashes — Trip: system pressure shutdown (HP trip).
• 6 Flashes — Compressor ground fault / winding earth short.
• 7 Flashes — Multiple compressor trips — protection event.
• Solid Green — Normal operation — compressor runs without fault.
• Solid Yellow — Warning — service recommended / trend abnormal.