Hypertherm Powermax1250 Service Manual - Manual (Page 53)

Control board LEDs
If the fault LED illuminates, no yellow indicator LEDs are illuminated, and green AC and pressure LEDs remain
illuminated, check LEDs on the rear of control board (PCB3).
70 50 4560 55 65 75 80 85
CURRENT
P1
UP
MID
DOWN
CPA
NORMAL
GOUGE
GAS
STATUS
START
XFR
SDF
IF
TSO
SP
START SIGNAL VALID
TRANSFER
SELF DIAGNOSTICS FAILURE
(Blinking at 1 sec rate.)
INVERTER INTERLOCK
(Visible for 10 sec. after event)
TORCH STUCK OPEN
(Visible for 10 sec. after event)
SPARE
Diagnostic LEDs
4
MAINTENANCE
3-20 powermax1250 Service Manual