Troubleshooting Guides

Paragon Guides

The following guides should be used for troubleshooting related issues. Please contact Paragon Engineering Support if you need assistance with diagnosis.

• Refrigerant Charge Troubleshooting Guide

  This interactable guide can be used for evaluating refrigerant charge.

• MUA Board & Sensor Troubleshooting Guide

  This interactable guide can be used for troubleshooting board issues, RH sensors, transducers, thermistors, and communication/Modbus faults.

• DIN Harness Troubleshooting Guide

  This interactable guide is for stress-testing the DIN harnesses found on some refrigerant transducers and oil sensors.

• Condensing Fan Troubleshooting Guide

  This interactable guide can be used for troubleshooting a variety of issues with Ziehl Abegg condensing fans.

• Compressor Troubleshooting Guide

  This interactable guide can be used for diagnosing compressor issues.

• MUA & IBT Board Troubleshooting Guides

  Make sure you use the correct checklist! There are two versions for the two different types of control boards; MUA boards & IBT boards.

  MUA (Red Board) Checklist

  

  MUA Board

  • EEV Troubleshooting Guide
  • Reheat Valve Troubleshooting Guide

  IBT (Green Board) Checklist

  

  IBT Board (Legacy Controls)

  • EEV Troubleshooting Guide (Legacy Controls)
  • Reheat Valve Troubleshooting Guide (Legacy Controls)