Compressor cooling systems: What we look for during your service and why keeping cool is important
At Nessco Pressure Systems, our technicians may recommend replacing components such as intercoolers, aftercoolers, hoses, and thermostats during your routine compressor servicing.
This article explains why these recommendations are made, based on manufacturer guidelines and our experience working with compressed air systems across Perth and regional WA.
Cooling systems manage the heat generated by your compressor
The role of cooling systems probably seems obvious – every compressed air system generates heat and managing that heat is essential to maintaining performance, efficiency and reliability.
Components such as aftercoolers, intercoolers, oil thermostats and high-temperature hoses are all part of that cooling process.
As these components wear, their ability to control temperature reduces. This can lead to:
• Higher operating temperatures
• Increased moisture in the system
• Reduced efficiency
• Additional strain on downstream equipment
When we recommend replacement parts, it’s not just about preventing compressor breakdowns or issues. It’s about making sure your compressor operates efficiently and safely all day, every day.
What our technicians look for during your compressor servicing
Some cooling system issues develop gradually and aren’t always obvious during the day-to-day running of your compressor.
During your compressor service, our technicians look for early indicators such as:
- Rising discharge temperatures
Small increases can indicate reduced cooling performance. - Excess moisture in the system
Ineffective cooling increases condensation, which can impact dryers, filters and equipment. - Wear in hoses and fittings
Cracking, bulging or oil leaks can point to weakening components under pressure. - Oil temperature instability
Inconsistent oil temperature can accelerate internal wear and reduce component life.
Where these signs are present, replacement is often recommended before failure occurs.
Not replacing cooling system components can lead to bigger issues
It’s common to delay parts replacement if your compressor seems to be running well.
However, when cooling components fail, the impact is often immediate and can affect more than just one part of your compressed air system.
This can include:
- The compressor overheating and shutdown
- Pressure instability
- Moisture carryover into air lines
- Increased energy consumption
- Unplanned downtime
Replacing cooling components when recommended is typically more straightforward and cost-effective than reacting to a failure down the track.
Supporting our compressed air recommendations with facts
We provide access to technical bulletins on a wide range of compressed air topics, including our cooling systems bulletin. The aim is to help customers understand the reasons behind our best practice advice.
These technical bulletins outline:
- The role of each compressor component
- Signs of deterioration
- Suggested replacement intervals
- Risks of failure or not replacing components on schedule
The resources we provide support our recommendations, help you understand why replacements have been recommended (even when they still seem to be working) and help you make more informed decisions.
Proactive servicing and critical spares replacement reduces long-term costs
Replacing components before failure may not always feel necessary, however, in most cases it helps:
- Maintain system efficiency
- Reduce the likelihood of breakdowns
- Avoid larger repair costs
- Support consistent system performance
Our approach to servicing is based on maintaining compressor performance over time, and staying ahead of any potential issues, rather than pushing the limits of your compressed air system and risking breakdowns or critical failures.
The goal: Reliable, efficient compressed air
When a Nessco technician recommends replacing a cooling system component, it’s based on:
- Observed condition during servicing
- Manufacturer guidelines
- Operating environment
- Practical experience across similar systems
The goal is simple — to keep your compressed air system operating reliably and efficiently.
Need support with your compressed air system?
If you want proactive, specialist compressor servicing, contact our service team on 1300 290 638, email info@nesscopressure.com.au or send us a message.
