Traulsen Low Temperature Alarm Error Code
Cabinet temperature has dropped below the low-temperature alarm setpoint on the Intela-Traul control.
Source: TRAULSEN/00051 INTELA-TRAUL Controls Serv Man TR35705 (10-04).pdf
What does Traulsen Low Temperature Alarm mean?
The Intela-Traul controller signals a low-temperature alarm when the cabinet runs colder than its low-temperature limit. It indicates the box is overcooling relative to the setpoint, which can over-freeze product. On hot food units note that the cabinet holds hot food at temperature and is not designed to heat cold product, so a cold reading is normal for empty hot-food cabinets.
Symptoms
- Alarm LED illuminated and horn sounding on the control
- Cabinet colder than the programmed setpoint
- Product over-chilled or frozen unexpectedly
- Compressor running continuously
Common causes
- Temperature setting for the unit is too low
- No food product in the unit
- Failed compressor relay
- Sensor probe not properly connected, or a failed sensor
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Diagnostic steps
Check the setpoint
If the temperature setting is too low, increase the operating temperature to the correct value.
Add product
If the unit is empty, add product to the unit so the load matches the control's expectation.
Check the compressor relay
Check for a failed compressor relay; if not OK, replace the failed controller or slave relay.
Verify sensor connections
Confirm the sensor probe(s) are properly connected and reconnect if needed.
Replace a failed sensor
If the probe checks out as connected but readings are wrong, replace the failed sensor.
When to call a professional
Call a technician if the alarm continues after correcting the setpoint and load, especially when a failed compressor relay or controller is suspected. Replacing the controller, slave relay, or sensors involves disconnecting line-voltage connections and verifying components with a meter; this is service-technician work, and mis-wiring the control can damage the unit.
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Other Traulsen Error Codes
Cabinet temperature has risen above the high-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 detects a refrigeration system leak based on discharge-line temperature behavior.
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.