Low Suction Pressure

Low pressure switch activated.

Possible causes

Low refrigerant charge
System leak
Clogged filter drier
Improperly adjusted TXV

Recommended actions

Perform leak detection
Replace filter drier
Adjust or recalibrate TXV

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Other Copeland codes

F1High Discharge Pressure F4Compressor Thermal Protector Open F5Reverse Phase Rotation (CoreSense)

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