Fanuc Alarm 73: PROGRAM NUMBER ALREADY IN USE

Fanuc Alarm 73: PROGRAM NUMBER ALREADY IN USE

Fanuc Control Model: Series 0 / 00 / 0-Mate, Series 0i-A/B/C/D/F), 16 / 18 / 21, 16i / 18i / 21i, 160i / 180i / 210i

Fanuc Alarm Description

The commanded program number has already been used. Change the program number or delete unnecessary programs and execute program registration again.


Have you faced Fanuc Alarm 73 PROGRAM NUMBER ALREADY IN USE on your machine? Share your experience or troubleshooting tips in the comments below to help other CNC operators and programmers clear this error faster!

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