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MRI Cold Head Compressor Shutdown – Troubleshooting Guide

Jul 2, 2025 | Tech Tips

An MRI cold head compressor shutdown occurs when the cooling mechanism for the MRI magnet fails to function properly. This critical situation can result in liquid helium loss, potentially triggering a magnet quench – a rapid loss of the magnet’s superconducting state. If not promptly addressed, this leads to complete system failure and extended downtime for the MRI scanner. Common causes include chiller malfunction, power supply issues, or compressor component failure.

Summary of Key Points:

  • Silence the Alarm: If the cold head compressor shuts off, first silence the alarm.
  • Check Cooling System: Ensure there is proper coolant return and supply.
  • Monitor Temperature: Verify that temperatures are within the normal range.
  • Determine the Next Steps: If cooling and temperature are stable, you can continue scanning while ordering the necessary replacement parts.
  • Schedule the Repair: Once the parts arrive, proceed with the repair and resume operations.

Closing Notes:
For more expert tips and MRI troubleshooting guidance, visit DirectMed Imaging and explore our resource tab. To get in-person classes visit our training page.

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