Compressor Thermal Protector Open

Protection module detected compressor overheating.

Possible causes

Electrical overload
Low refrigerant charge on suction-cooled motor
Incorrect supply voltage

Recommended actions

Wait at least 2 hours for cooling
Measure voltage and amperage
Check charge and superheat

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Other Copeland codes

F1High Discharge Pressure F2Low Suction Pressure F5Reverse Phase Rotation (CoreSense)

View all Copeland codes

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