Hypertherm Powermax30 AIR Service Manual - Manual (Page 64)

64 Powermax30 AIR Service Manual 808850
5 – Troubleshooting and System Tests
The power ON LED blinks.
Possible cause Possible solution
 The incoming voltage is below 90 VAC or
above 285 VAC.  Perform Test 1 – voltage input on page 78.
All four LEDs blink when the system is
powered ON.
Possible causes Possible solutions
 A major fault has occurred in the power
supply. For example, the fan, solenoid valve,
control board, or power board may be faulty.  The error LED on the control board should
be blinking. The number of times it blinks
between pauses indicates which
components to test. See
Control board
LEDs on page 71.
AC