Expert Troubleshooting Desk
Troubleshooting Q&A
Real-world air compressor problems — answered by an independent expert.
No manufacturer bias. No generic advice. Practical diagnostics only.
Before You Ask
This Q&A is for industrial and commercial air compressor troubleshooting questions. Please include:
- Compressor type (rotary screw, piston, diesel portable)
- Brand & model (if known)
- Symptoms and alarms
- What you've already checked
DIY, hobby, and consumer compressors are outside the scope of this resource.
Answered Questions
Browse the archive of real troubleshooting questions and expert answers.
1 Answer
mobile compressor engine stops as soon as you let go of starter switch
4 Answers
Element Outlet Temperature
1 Answer
portable air compressor doesn't load
1 Answer
Compressor is not unloading correctly
1 Answer
air end clearance
1 Answer
Oil becomes Black
2 Answers
High current - compressor trips
1 Answer
Atlas Copco GX7 in high ambient temperatures
5 Answers
Thermostatic Valve - why is it needed?
1 Answer
Air leak even when not under load
1 Answer
Air reciprocating compressor
1 Answer
Seperator DP
1 Answer
Oil free screw compressor - low oil pressure problem
1 Answer
first stage discharge pressure high
1 Answer
alarm: fan M4 I high - trip
1 Answer
Air Compressor not starting
1 Answer
Running in the wrong direction
1 Answer
Sump pressure - not blown down during onload
1 Answer
Piston compressor starts up then trips
1 Answer
Won't Start/Dumping air
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