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208684 - Miller Maxstar 150 Series Replacement Circuit Board

Packaging: 1 PER EA
$19.69/EA

Usually ships within 3-5 business days

OVERVIEW

Genuine Miller Replacement Circuitry for Maxstar 150 Series

The Miller 208684 Circuit Board is a critical replacement component designed exclusively for the Maxstar 150 family of inverter welding power sources. As the central nervous system of your welding machine, the main circuit board is responsible for regulating power output, managing arc characteristics, and coordinating the complex electronic functions that make the Maxstar 150 a favorite among professionals. When this component fails due to electrical surges, age, or accidental damage, replacing it with a genuine OEM part is the only way to ensure your equipment returns to its original factory specifications.

This assembly is engineered to fit the specific form factor and electrical requirements of the Maxstar 150 S, Maxstar 150 STL, and Maxstar 150 STH models. Unlike aftermarket alternatives that may approximate the necessary voltage regulation or timing signals, this Miller Electric board is manufactured to the exact tolerances required for stable DC TIG and Stick welding. It handles the precise switching frequencies utilized by Miller's inverter technology, ensuring that features like Lift-Arc™, thermal overload protection, and amperage control function exactly as intended.

Industrial maintenance professionals understand that the integrity of a repair depends on the quality of the parts used. Installing the Miller 208684 board restores the reliability of your portable welding asset, minimizing downtime in the shop or field. The board arrives in anti-static packaging to protect sensitive components during transport. Whether you are diagnosing a machine that refuses to power on, exhibits erratic arc behavior, or displays error codes related to the main control logic, this authentic replacement part provides the solution needed to extend the service life of your Maxstar welder.

By choosing genuine Miller parts, you maintain the safety standards of the equipment. Inverter welders operate at high voltages and frequencies; using the correct circuit board ensures that internal isolation and safety circuits remain intact. This replacement part is the definitive fix for circuit-level failures in the specified Maxstar models, providing a direct swap-out solution for qualified repair technicians.

Additional Information
Packaging Description:1 Per Ea
Compatible Models:Maxstar 150 S, Maxstar 150 STH, Maxstar 150 STL
Part Type:Circuit Board Assembly
Component Class:Electronic Control
----- new values below ----
Compatible Models:Maxstar 150 S, Maxstar 150 STL, Maxstar 150 STH
Part Type:Circuit Board Assembly
Component Class:Electronic Control
brand:miller-oem
packaging-description:1-per-ea

INCLUDED

  • 1 x Miller 208684 Circuit Board Assembly
  • 1 x Anti-Static Protective Packaging

APPLICATIONS

  • Repairing Miller Maxstar 150 S (Stick) welding machines
  • Restoring functionality to Miller Maxstar 150 STL (Stick/TIG Lift) units
  • Fixing Miller Maxstar 150 STH (Stick/TIG HF) power sources
  • Replacing damaged or burnt-out main control boards in inverter welders
  • Correcting issues with erratic arc starts or power loss in compatible models

FAQ

This circuit board is designed specifically for the Miller Maxstar 150 series, including the Maxstar 150 S, Maxstar 150 STL, and Maxstar 150 STH models.

Yes, this is a genuine OEM (Original Equipment Manufacturer) part from Miller Electric, ensuring exact fitment and adherence to factory specifications.

Common symptoms include the machine failing to power on, erratic or unstable welding arcs, failure to initiate an arc, or visible damage (burn marks) on the existing board.

Typically, OEM service parts like this do not come with a step-by-step manual. Installation should be performed by a qualified technician using the machine's technical service manual.

A flashing light often indicates a fault code. While a bad board can cause this, it could also be input power issues or thermal overload. Consult the service manual to diagnose the specific code before purchasing.

Generally, these boards are designed with plug-and-play connectors for the wire harnesses, but you should verify the specific revision of your machine. Soldering is usually not required for the main board swap.

'CKT' is an industry abbreviation for 'Circuit', indicating that this item is a circuit board assembly.

No, this board is listed specifically for the Maxstar 150 S/STL/STH. The Maxstar 200 and STR models have different internal architectures and require different part numbers.