38129 - ESAB 38129 Replacement Control PCB for 353/453/352/452 CV Welders

Restore Precision to Your ESAB CV Power Source

The ESAB 38129 PCB Control is a critical replacement component designed specifically for the ESAB CV series of industrial welding power sources. This printed circuit board serves as the central nervous system for models such as the 353 CV, 453 CV, 352 CV, and 452 CV. In constant voltage (CV) welding processes—typically MIG (GMAW) and Flux-Cored (FCAW)—the stability of the arc and the consistency of the voltage output are paramount for achieving high-quality welds. This control board regulates these parameters, ensuring that the machine responds instantly to changes in the arc length and maintains the set voltage.

Over time, electronic components in heavy-duty industrial environments can degrade due to heat cycling, dust accumulation, or electrical surges. Symptoms of a failing control board can range from erratic arc performance and inability to hold voltage settings to a complete machine failure where the unit powers on but produces no output. Installing the genuine ESAB 38129 ensures that your equipment is brought back to factory specifications. Unlike generic aftermarket boards, this OEM part is engineered with the exact logic and component quality required by ESAB's robust power architecture.

Maintenance teams and repair technicians rely on the 38129 PCB to extend the service life of their capital equipment. Rather than replacing an entire power source, swapping out a faulty control board is a cost-effective solution that minimizes downtime. The board features the necessary connectors and mounting points for a straightforward installation into the designated chassis slot of the compatible CV units. It is manufactured to withstand the rigors of a shop floor environment, providing long-term reliability once installed.

When troubleshooting your ESAB 353/453 or 352/452 system, verify that all connections to the main board are secure before condemning the part. If diagnostic tests point to a control logic failure, the ESAB 38129 is the correct replacement part number to restore full functionality. Ensure your welding operations continue without interruption by using authentic ESAB repair parts.