Troubleshooting
6-6 Manual 0-5186
WELDSKILL 250, 350 TROUBLESHOOTING
6.07 Check main On / Off Switch
Power Switch Testing Multimeter Lead Placement Impedance
Switch ON
Positive meter lead to testpoint 2
Negative meter lead to testpoint 3
0 to 0.5 Ω
Switch ON
Positive meter lead to testpoint 1
Negative meter lead to testpoint 4
0 to 0.5 Ω
Switch OFF
Positive meter lead to testpoint 2
Negative meter lead to testpoint 3
> 1M Ω
Switch OFF
Positive meter lead to testpoint 1
Negative meter lead to testpoint 4
> 1M Ω
Table 6-3 Power Switch, Multimeter set to measure ohms (Ω)