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.
Awaiting Answer
internal failure
Awaiting Answer
145ff compressor show alarm dryer low load
Awaiting Answer
Reciprocating compressor
Awaiting Answer
I-R p185, 1992, can oil in air system res. be ATF? color in sight tube is red. Or must be compressor oil, where to find best price?
Awaiting Answer
deutz air compressor F21912 mixing air with oil even with a separator replacement what is the cause?
Awaiting Answer
deutz air compressor F21912 mixing air with oil even with a separator replacement what is the cause?
Awaiting Answer
Convert GA132 from fixed speed to VSD
Awaiting Answer
what-is-the-basic-difference-between-oil-injected-oil-free-compressor?
Awaiting Answer
Repeatedly trip by starter feedback contact open
Awaiting Answer
Relationship between NL/min and CFM
Awaiting Answer
Atlas copco drill compressor Overheating
1 Answer
Length of compressed air circuit
1 Answer
Campbell Hausfeld 200 PSI Portable Air Compressor (Oil less) with problems
1 Answer
High Discharge Pressure
1 Answer
What type of compressor should I buy
1 Answer
Problem with ZT250 - LP temperature high
1 Answer
Compressor not making air pressure
1 Answer
air pressure setting on ga111
1 Answer
chattering safety valve
1 Answer
Compair L250 screw compressor loading problems
Ask a Troubleshooting Question
Describe your problem in detail and get practical, independent guidance based on real-world experience.
Looking for Step-by-Step Troubleshooting?
Browse our troubleshooting hubs for structured diagnostics by compressor type.