Hypertherm Powermax30 XP Service Manual - Manual (Page 71)

Powermax30 XP Service Manual 808150 Revision 1 71
5 – Troubleshooting and System Tests
Error LED
The number of times the Error LED blinks indicates the problem detected. Each blink is a half-second long, and each
series of blinks is separated by a 2-second pause. See
System tests on page 71 for detailed test procedures.
System tests
You can use either the ground clip near the top of the rear panel or the ground screw on the heatsink (marked by the
ground symbol on the power board) for any tests that require the multimeter to be attached to ground. See
Figure 11 for
both grounding options.
Figure 11
Number of
blinks
Problem Solution
3 Faulty power board • Perform Test 3 – VBUS and voltage balance on page 78. If any of
the values are incorrect, replace the power board.
• Perform Test 2 – power board voltage checks on page 76. If any of
the values for pins 5, 7, or 12 are incorrect, remove the control board
and test again. If the values are correct, replace the control board.
• When performing Test 2 – power board voltage checks on page 76,
if the values for pins 5, 7, or 12 are correct, but any other values are
incorrect, replace the power board.
4 Faulty fan or solenoid valve • Perform Test 4 – solenoid valve on page 80 and Test 8 – fan on
page 85. If the solenoid valve test and the fan test both pass,
replace the power board. If Test 4 fails, replace the solenoid valve; if
Test 8 fails, replace the fan.
6 Inverter saturation • Install new consumables in the torch. If you continue to see this error
code, replace the power board.