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
Husky Model WL651001AJ Compressor doesn't restart after initial pressure built u
1 Answer
185 sullair compressor problem: will not start
5 Answers
oil vomiting from inlet filter
2 Answers
altas copco compressor GA 132 oil problem.
1 Answer
check valve leaking
2 Answers
185cfm John Deere compressor - coupling
1 Answer
IR UP6 - lot's of oil carry over
1 Answer
IR UP6 Problem
1 Answer
leaking unloader valve
1 Answer
Atlas Copco ZT160 dT alarm
1 Answer
Wabco Air compressor will not build above 30psi
3 Answers
atlas copco xas 96 - oil in air lines
1 Answer
Sullair 250Q won't shut off
Awaiting Answer
Compair runs all the time
Awaiting Answer
moter over load trip & temp sensor 1trip
Awaiting Answer
on off button will not work.
Awaiting Answer
Clearance betwin rotors
Awaiting Answer
Below full power
Awaiting Answer
Unloader valve
Awaiting Answer
Air leaks only when compressor running
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