Compressed Air System Servicing & Maintenance
Maintain the compressor, dryer, filters, receivers, drains and distribution system together to protect reliability, air quality and operating performance.
Maintain the Whole Compressed-Air System
Reliable compressed air depends on more than the compressor. Dryers, filters, drains, receivers, pipework, controls and condensate equipment all influence pressure, air quality, energy use and reliability.
Routine Compressor Service
Dryers, Filters and Drains
Air-treatment equipment needs its own maintenance. A compressor can run normally while a failed drain, fouled filter or dryer fault allows water downstream or creates excessive pressure drop.
- Check dryer status, condenser condition and drains.
- Monitor filter differential pressure where indicators are fitted.
- Replace filter elements according to manufacturer requirements and condition.
- Investigate water downstream rather than increasing compressor pressure.
- Maintain oil-water separators and condensate equipment.
Air Receivers and Written Schemes of Examination
Air receivers form part of a pressure system and can fall within the Pressure Systems Safety Regulations 2000. HSE guidance identifies a compressed-air receiver and associated pipework as a typical system likely to require a Written Scheme of Examination where pressure in bar multiplied by receiver volume in litres is 250 bar-litres or more.
A competent person determines the exact Written Scheme scope and examination frequency. Routine compressor servicing does not replace statutory examination where it applies.
Warning Signs That Need Investigation
| Warning Sign | Possible Causes | Action |
|---|---|---|
| Falling pressure | Leaks, restriction, controls or insufficient output | Check demand and inspect the system. |
| High temperature | Ventilation, cooler, oil or internal fault | Stop if necessary and investigate. |
| Water downstream | Dryer, drain or treatment issue | Check air-treatment equipment. |
| Repeated trips | Electrical, temperature, pressure or control fault | Do not repeatedly reset without diagnosis. |
| More running hours | Leaks, extra demand, restriction or control issue | Review demand and leakage. |
Preventive Checks Between Service Visits
Frequent Operator Checks
- Oil, water or air leaks
- Pressure and temperature
- Unusual noise or vibration
- Clear ventilation openings
- Drain operation
Periodic Site Checks
- Visible hose and pipework condition
- Filter pressure drop
- Cooler cleanliness
- Operating hours vs next service
- Recent alarms and demand changes
These checks should be carried out only by appropriately trained staff and without defeating guards or working on pressurised or energised equipment unsafely.
Energy Efficiency and Maintenance
Dirty filters, restricted coolers, leaks and unnecessarily high pressure can all increase operating cost. Planned maintenance helps keep the system in its intended condition, but it should not be sold as a guaranteed percentage energy saving.
If energy use has changed significantly, review the actual load profile, leakage, pressure, compressor control and production demand rather than assuming the compressor itself is the only cause.
Plan for Critical-Air Contingency
Sites that depend heavily on compressed air should consider what happens during major servicing or an unexpected breakdown. Options can include backup capacity, a second compressor or temporary hire.
Compressed-Air Servicing FAQs
How often should a compressor be serviced?
Follow the manufacturer schedule and operating-hour requirement, adjusted where necessary for demanding environments and usage.
Does the dryer need servicing too?
Yes. Dryers, filters and drains require maintenance to protect air quality and control pressure drop.
Does routine servicing replace a Written Scheme examination?
No. Where PSSR applies, the Written Scheme examination is a separate statutory requirement determined by a competent person.
Can servicing prevent every breakdown?
No, but it can identify developing wear, leaks and faults before some failures become more serious.
Do you provide emergency support?
Yes. 24/7 availability applies to urgent compressor breakdown assistance. Call 0121 753 3330 with the machine and fault details.
Does Your Compressed-Air System Need a Service?
Send us the compressor make, model, serial number, operating hours and any alarms or symptoms. We can help arrange planned servicing, repairs or emergency breakdown support.