Compressor Service Intervals: What to Check and When
Regular compressor service is the key to preventing unexpected breakdowns and extending the life of your equipment. Whether you manage a rotary screw unit, a reciprocating compressor, or a portable system, the timing of your service matters just as much as the quality of it.
In this guide, we’ll walk through what to check and when so you can avoid costly downtime and keep your system running efficiently.
Why Compressor Service Matters
Compressed air is critical to your operations, and your compressor can’t afford to run dirty, overheated, or under pressure. Proactive service keeps components clean, temperatures stable, and your air system reliable over the long haul.
Service Intervals by Compressor Type
Rotary Screw Compressors
- Check oil level: Daily
- Change oil: Every 4,000 to 8,000 hours or annually
- Replace oil filter: Every 2,000 hours
- Replace air filter: Every 2,000 hours
- Replace separator: Every 4,000 hours
- Inspect scavenge line: Every service
Reciprocating (Piston) Compressors
- Check oil level: Weekly
- Change oil: Annually
- Replace air filter: Quarterly or every 6 months
- Replace oil filter: Every 3 to 6 months
Portable Compressors
- Change oil: Every 4,000 to 8,000 hours
- Replace oil filter: Every 2,000 hours
- Replace air filter: Every 2,000 hours
- Replace separator: Every 4,000 hours
Environmental Factors That May Accelerate Service Needs
If your compressor runs in a harsh environment such as dusty, humid, or high-temperature conditions, you may need to service it more frequently. Watch for the following signs that you're due for maintenance sooner than planned:
- Loss of pressure or extended cycle times
- Increased oil carryover or contamination
- Unusual noise or vibrations
- System running hot or shutting down
How to Keep Track
If you're not already tracking your hours, now is a good time to start. We recommend logging service activity on a whiteboard or digital tracker - or using our downloadable checklist to keep it all in one place.
Download the free maintenance checklist here.
Don’t Wait for Failure
Most major compressor repairs come from small problems that were ignored. Staying ahead with regular service can prevent overheating, bearing failure, airend rebuilds, or worse.
Need help finding parts? We stock replacement filters, oils, and service kits for nearly every brand. Browse compressor parts by brand.
Final Thoughts
If you want your compressor to last, you can’t afford to skip service. Whether you’re running an industrial rotary screw or a small shop unit, consistent checks and replacements are non-negotiable. Bookmark your intervals, track your hours, and stick to the plan. Your system will thank you.