Why Your Atlas Copco GA VSD+ Compressor Overheats (and How to Prevent It)

Why Your Atlas Copco GA VSD+ Compressor Overheats (and How to Prevent It)

Overheating is one of the most common (and serious) issues for rotary screw compressors like the Atlas Copco GA VSD+. High temperatures can lead to oil breakdown, premature airend wear, and unexpected shutdowns. The good news? Most overheating problems are preventable with routine checks and maintenance.

Common Causes of Overheating

1. Dirty or Blocked Coolers

When coolers become clogged with dust and debris, they can’t dissipate heat effectively. Regular cleaning of oil and aftercoolers is critical to maintaining safe operating temperatures.

2. Low or Degraded Oil

Oil lubricates, seals, and cools the airend. Running with low or old oil reduces heat transfer efficiency and can rapidly cause temperature spikes. Always use Roto Xtend Duty Fluid and follow your scheduled oil change intervals.

3. Restricted Airflow

Compressors need proper ventilation to shed heat. Blocked vents, poor room airflow, or nearby heat sources can trap hot air around the machine, increasing internal temperatures.

4. Clogged Air Filters

A dirty air filter forces the compressor to work harder and can reduce cooling airflow internally. Replace filters on schedule and inspect them more often in dusty environments.

5. Faulty Thermostatic Valve

This valve regulates oil flow to the cooler. If it malfunctions, oil may bypass the cooler entirely, leading to rapid overheating. Check and replace if necessary during major service intervals.

How to Prevent Overheating

  • Clean coolers regularly and remove dust buildup.
  • Stick to scheduled oil and filter changes using correct fluids.
  • Ensure your compressor room has adequate ventilation and isn’t overcrowded.
  • Monitor Elektronikon alerts for early warning signs of high temperatures.
  • Inspect thermostatic valves and cooling fans during routine maintenance.

Keep Your GA VSD+ Running Cool

Proactively addressing these causes reduces risk of breakdowns, extends airend life, and protects your overall investment. A cool compressor is a reliable compressor.

Need oil, filters, or cooler parts? Check out our Atlas Copco parts collection to keep your GA VSD+ running at peak performance.

Disclaimer: The information provided in this blog is intended for general troubleshooting guidance only and may not cover every situation or machine configuration. Always refer to your specific equipment’s manual and follow the manufacturer’s safety instructions. If you are unsure or uncomfortable performing any maintenance or repairs, consult a qualified technician. Air Compressor Services is not responsible for any injuries, damages, or losses resulting from the use of this information.