No Temperature Pulldown

What does No Pulldown mean?

Indicates an inability of the refrigeration system to reach the set point temperature. This implies a significant failure in the system's capacity to cool down the internal environment, affecting product storage conditions.

• Significant failure in the refrigeration system's ability to achieve or maintain the set point temperature.

Click steps to track your progress.

1. 1

   Verify the temperature set point and the actual measured temperature values within the Otis 400's diagnostic interface or associated building management system to confirm the reported deviation.

2. 2

   Inspect power supply cabling and connections to the refrigeration unit's main contactor or power distribution module for loose terminals or visible damage.

3. 3

   Measure the supply voltage at the input terminals of the refrigeration unit's control panel or motor starter to confirm adequate power delivery.

4. 4

   Check the operational status and parameters of the refrigeration unit's compressor and condenser/evaporator fans via the Otis 400's monitoring interface or the unit's local controller, looking for fault codes or abnormal readings.

5. 5

   Inspect temperature sensor wiring and connections for integrity and proper termination, ensuring accurate temperature feedback to the control system.