L-TEC PCM-VPi 31746 Welder

L‑TEC PCM‑VPi 31746 is a compact inverter plasma cutter rated at 120 V/40 A with a 60 % duty cycle, commonly used for light‑to‑medium thickness metal cutting. Common failures on this model include degraded MOSFETs or gate driver ICs in the power stage, blown input capacitors, and worn contactor contacts; overheating can also cause the internal temperature sensor to trip. For initial troubleshooting verify that the 120 V supply is stable, check all input and output fuses, inspect the power board for burn marks or swollen electrolytics, and review any error codes displayed on the front panel before proceeding with component replacement.[oss-gpt-20b] Post Comment

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