Bryant · Comfort Alert Diagnostic Module
The system's low-pressure safety switch has activated due to insufficient pressure in the refrigerant lines, stopping the compressor and fan. This often indicates a loss of refrigerant.
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Check and replace the air filter if it is dirty.
Ensure the indoor coil is clean and airflow is not obstructed.
Listen for any unusual noises from the unit.
Contact a qualified technician to check for refrigerant leaks and system charge.