162 Powermax125 Service Manual 808070
8 – Troubleshooting and System Tests
Test 9 – Electronic regulator
Symptom: Air flows continuously through the torch.
1. Turn OFF the machine and disconnect the power.
2. Disconnect the electronic regulator control cable (J6) from the power board.
If air continues to flow, replace the electronic regulator.
If the air stops flowing, verify the DSP board by replacing it with a known good one. If the DSP board is not the
problem, replace the power board.
Figure 30
1 Electronic regulator (J6)
2 Pressure switch/auxiliary contactor (J5)
3 Pressure sensor (J3)
4 Inverter temperature sensor (J2)
5 Fan (J1)
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