Here are the Data for the 737CL with the digital Elec.Control Panel
The ELEC light will come on for these fault messages:
► STAT INV INOP
► BAT CHGR INOP
► GEN1 FAULT
► GEN2 FAULT
► STBY BUS XFER FAULT
► BAT BUS XFER FAULT
► INTERFACE FAILURE
The Maintenance Messages will be removed when the RECALL/TEST button
is pressed and held for approximately 6 seconds.
NOTE : Except for the Generator No. 1 and No. 2, the faults cannot be cleared
by the MAINT button when the fault condition still exists.
Ingo