Why Your Ingersoll Rand SS3 or SS5 Isn’t Building Pressure
There’s nothing more frustrating than firing up your Ingersoll Rand SS3 or SS5 and realizing it isn’t building pressure like it used to. The good news? Many causes are simple to identify and fix yourself.
Common Causes of Low or No Pressure
1. Air Leaks
Leaks in hoses, fittings, or tank connections can prevent the system from reaching full pressure. Listen for hissing sounds or use soapy water to check joints for bubbles.
2. Worn Piston Rings
Over time, piston rings wear out and lose their ability to seal properly. This leads to air slipping past the piston and reduced compression efficiency.
3. Faulty or Dirty Check Valve
The check valve prevents air from flowing back into the pump when it’s off-cycle. If it’s stuck open or clogged, you may lose pressure during runtime or after shutoff.
4. Dirty Air Filter
A clogged intake filter restricts airflow, forcing the compressor to work harder and limiting its ability to build and maintain pressure.
5. Gasket Leaks
Cracked or blown head gaskets can let air escape inside the pump, leading to noticeable drops in pressure and longer recovery times.
What to Do Next
- Inspect and tighten all fittings and hose connections.
- Check your air filter and replace if dirty — SS3 filter here or SS5 filter here.
- If you suspect piston rings or gaskets, consider a repair kit or consult a professional technician.
Don’t Ignore the Signs
Running your compressor while it struggles to build pressure can lead to overheating and further internal damage. Addressing these issues early keeps your SS3 or SS5 performing reliably and extends its life.
Need help staying on top of maintenance? Check out our Air Compressor Maintenance Checklist blog for more tips.
Looking for more general troubleshooting tips? Check out our full guide on compressors not building pressure for other possible causes and fixes.