Norlake LogiTemp Plus

Questions and Answers

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Jeffrey WolfeAug 17, 2025
What to do if Norlake Controller shows high room temperature HtA?
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  Kimberly GonzalezAug 18, 2025
  If the Norlake Controller displays a 'High room temperature HtA' alarm, it could be due to several reasons. The refrigeration might be insufficient, or the heat load could be too large; in both cases, check the system design to ensure it's adequate. Other potential causes include a failing compressor (replace it), evaporator fans not running (fix them), the door being open too long (keep it closed), or a coil iced-up (check for air leaks in the cold room walls).
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wyatt33Aug 20, 2025
What to do if Norlake Controller shows low pressure alarm LPA?
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  Tracey AllisonAug 20, 2025
  If the Norlake Controller displays a 'Low pressure alarm LPA', it could be due to a refrigerant leak (fix the leak) or a bad transducer (replace the pressure transducer).
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John BarnesAug 23, 2025
What to do if Norlake LogiTemp Plus shows door open alarm dor?
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  Selena CampbellAug 23, 2025
  If the Norlake Controller displays a 'Door open alarm dor', ensure the door is fully closed. Also, check for loose wiring and tighten the terminals, correcting the wiring if needed. Finally, verify that the digital input is set up correctly and adjust the settings if necessary.
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loganmedinaAug 25, 2025
What to do if Norlake LogiTemp Plus displays low superheat LSH?
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  Steven MartinAug 26, 2025
  If the Norlake Controller displays a 'Low superheat LSH' alarm, it might be due to several factors. The superheat setting could be too low (change to the correct set point), or the TS2 sensors might be incorrectly placed (ensure even feeding of each circuit by the distributor). Sensors may be loose (insulate them with foam tape), there might be uneven feeding of coil circuits (ensure even feeding by the distributor), the refrigerant charge could be excessive (use the correct charge), the electric expansion valve (EEV) might be defective (replace it), or the compressor might be stopping (check the compressor).
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mooreandrewAug 28, 2025
What to do if Norlake Controller displays pressure transducer alarm PSA?
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  robinsmithAug 28, 2025
  If the Norlake Controller displays a 'Pressure transducer alarm PSA', it could be due to a bad transducer (replace the pressure transducer), an out-of-range issue (turn off power for a few seconds, then turn it back on), or a loose wire (wire it correctly).
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Elizabeth WhiteAug 30, 2025
What to do if Norlake Controller displays communication alarm COA?
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  joe98Aug 30, 2025
  If the Norlake Controller displays a 'Communication alarm COA', ensure all connections are secure by tightening the terminals and bonding setup. If the problem persists, the communication port may have failed, requiring a replacement of the controller board.
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Monique WhiteheadSep 1, 2025
What to do if Norlake Controller displays defrost termination sensor TCOIL fails CSA?
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  Kimberly YatesSep 2, 2025
  If the Norlake Controller displays a 'Defrost termination sensor TCOIL fails CSA' alarm, first, ensure the connection wires on the controller terminal are tightened. If the sensor has overheated, allow it to cool down to the application temperature range of –50°F to +103°F. If the issue persists and the sensor is out of range, it may need to be replaced.
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Robin LewisSep 4, 2025
What to do if Norlake LogiTemp Plus displays suction temp sensor TSUC alarm SSA?
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  james63Sep 4, 2025
  If the Norlake Controller displays a 'Suction temp sensor TSUC alarm SSA', start by tightening the connection wires on the controller terminal. If the sensor was overheated during brazing of the suction line, remove the sensor before brazing and install it afterward.
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Robert HaynesSep 6, 2025
What to do if Norlake LogiTemp Plus displays room sensor TAIR alarm ASA?
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  michael77Sep 6, 2025
  If the Norlake Controller displays a 'Room sensor TAIR alarm ASA', start by tightening the connection wires on the controller terminal. If this doesn't resolve the issue, consider replacing the room sensor with a surface sensor, as this may address problems related to overheating or being out of range.
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riveramichelleSep 9, 2025
What to do if Norlake Controller displays low room temperature LtA?
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  Vanessa JonesSep 9, 2025
  If the Norlake Controller displays a 'Low room temperature LtA' alarm, it could be due to an improper low-temperature setpoint (change the low temp set point) or an over-designed system (re-select the system).