Traulsen System Leak Alarm Error Code
The Intela-Traul control detects a refrigeration system leak based on discharge-line temperature behavior.
Source: TRAULSEN/00051 INTELA-TRAUL Controls Serv Man TR35705 (10-04).pdf
What does Traulsen System Leak Alarm mean?
The system leak alarm fires when the discharge line temperature does not rise as expected during a refrigeration cycle, which the control interprets as a possible refrigerant leak or low charge. It uses the discharge-line sensor to judge whether the sealed system is performing normally, so a misplaced or failed discharge sensor can also raise this alarm.
Symptoms
- Alarm LED illuminated and horn sounding on the control
- Discharge temperature not rising about 45F within the expected cycle window
- Cabinet not holding temperature
- Compressor running with poor cooling
Common causes
- Low refrigerant charge in the system
- Discharge line sensor not properly connected
- Failed discharge line sensor
- Dislocated discharge sensor probe out of correct position
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Diagnostic steps
Check refrigerant charge
Check the compressor for low refrigerant; add refrigerant if the charge is not OK.
Inspect the discharge line sensor
Check the discharge line sensor per the manual procedure and replace it if it is failed.
Confirm probe connections
Verify the sensor probes are properly connected and reconnect any that are loose.
Verify probe placement
Check for a dislocated sensor probe and relocate it to the correct position on the hot-gas side near the compressor.
Re-insulate the discharge sensor
Ensure the discharge sensor is properly placed before the hot-gas loop and insulated as required.
When to call a professional
Call a refrigeration technician for a system leak alarm. Diagnosing low charge, locating a refrigerant leak, and recharging the sealed system require EPA certification, recovery equipment, and leak-detection tools. Relocating or replacing the discharge-line sensor and confirming proper placement near the compressor are service tasks; improper handling can mask a real leak and damage the compressor.
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Other Traulsen Error Codes
Cabinet temperature has risen above the high-temperature alarm setpoint on the Intela-Traul control.
Cabinet temperature has dropped below the low-temperature alarm setpoint on the Intela-Traul control.
The Intela-Traul control detects a cabinet door open longer than the allowed time.
The Intela-Traul control detected an interruption of power to the unit.
The Intela-Traul control signals that the condenser coil needs cleaning or that condenser airflow is restricted.
The Intela-Traul control reads the cabinet air sensor as open or shorted.
The Intela-Traul control reads the evaporator coil sensor as open or shorted.
The Intela-Traul control reads the discharge line sensor as open or shorted.
The Intela-Traul control reads the liquid line sensor as open or shorted.
Defrost has terminated by time rather than by temperature for 72 hours on the Intela-Traul control.