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5 Common rotary screw compressor problems and solutions

Rotary screw compressors are reliable, but they’re not immune to problems. Knowing the most common rotary screw compressor problems and solutions helps prevent costly downtime and damage.

1. Overheating – Common causes include dirty coolers, low oil levels, or poor ventilation. Solution: Clean coolers, top up oil, and ensure adequate airflow.
2. Oil Carryover – This usually occurs when the separator element is clogged or damaged. Solution: Replace the separator and use the right oil grade.
3. Low Air Pressure – Caused by worn parts, leaks, or clogged filters. Solution: Check hoses, valves, and filters; replace or repair as needed.
4. Frequent Trips or Shutdowns – May be linked to electrical faults or high temperatures. Solution: Inspect wiring, relays, and temperature sensors.
5. Unusual Noise – Grinding or knocking may indicate bearing or rotor damage. Solution: Shut down the machine and inspect internal components before continuing use.

Ignoring these signs can result in major repairs or replacements. Regular maintenance and timely inspections are the best ways to avoid these common issues. For expert help diagnosing and fixing compressor problems, visit our Rotary Screw Compressor Maintenance page. If the issue persists or you’re unsure how to proceed, Contact Us for immediate support. Want a detailed maintenance strategy? Check out our Screw Air Compressor Maintenance guide.