Haas Alarm: 638 – APC-DOOR NOT OPEN – Haas Mill

Haas Alarm: 638 (M) APC-DOOR NOT OPEN – The automatic door did not open (in the allowable time), or may have fallen during an APC function. This can be caused by a bad air solenoid, a blocked or kinked airline, or a mechanical problem. After correcting the condition, run M50 to continue machining.