Atlas Copco ES100 Sequencer failure


Thread Starter


During a recent power glitch, our Atlas Copco Sequencer ES100 connected with GA55W series air compressors stopped working; an error message "System Failure" appears after switching the unit ON with the error code # 20. There is no explanation from mfr. about the cause of this error and no information on troubleshooting.

Atlas Copco SEQUENCER E4 is configured with following hardware. (Mfr Atlas Copco Belgium)

CARD 1 (Display & Regulator) HRR E1
p/n 1900 0707 03 ed 00

Card 2 (COM 3)
p/n 1900 0701 71 ed 01

Card 3 (DIOE)
p/n 1900 0707 52 ed 01

Anybody having experience to rectify the problem or any information on availability of Sequencer card 1.


Kapetas George

Change it with a Kaeser Sigma Air Manager....
you will be astonished of the difference....I already did it.......tell them also to supply you with SAC plus. Its perfect
Can you take es 100 that is working with atlas capco compressors and refit it with kaeser controls?