Haas Alarm: 948 (M) APC-SOFTWARE ERROR – Fault in pallet changer software. Note the actions that caused this alarm. Also record the following information: On the control panel, press Param Dgnos key to get the Dgnos screen. Press Page Up to the PC Inputs page. Record the values of PC State, Alarm ST, and Alarm. If this alarm recurs regularly, call your dealer.