Hypertherm XPR300 - Page 343

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 343
3. Install a temporary jumper wire between J5 (nozzle) and J1 (work) on the start circuit
PCB 4 (141360).
2
3
D4
D6
2
3
NOTICE
Never fire an arc when a temporary jumper wire is installed on the PCB. Sparking and damage to the
PCB can occur.