Atlas Copco Controller Guides & Knowledge Base
Practical, accurate references for Atlas Copco compressor controllers — written by controller specialists. Understand the Elektronikon generations, decode fault messages, identify your exact part number and confirm the right controller for your machine.
What separates Elektronikon I/II from Mk5 Graphic, Touch and Mk5S — display, features, SMARTLINK connectivity and typical machines.
Elektronikon shows plain-text messages, not numeric codes. What warning / shutdown / service actually mean, causes, reset steps — plus verified Xc portable codes.
Find the exact controller you need — by part number, nameplate, display type and machine serial — before you order a replacement.
Which controller generation goes on GA, GX, ZR/ZT, VSD and portable XAS machines — a typical-fitment reference table.
Why controller part numbers change, how supersession works, how to find the current replacement number, and verified interchange examples.
The Xc controller range for portable diesel compressors — how the Xc1002 / 2002 / 2003 / 3003 / 4004 naming works and what each one does.
Need a specific part number?
Browse the full controller catalogue, check the compatibility page, or send us your machine serial and we'll confirm the exact controller.