289250 - Miller Multimatic 235 Wind Tunnel and PCB Repair Kit

Restore Your Multimatic 235 with Genuine Miller Parts

The Miller 289250 Kit, Multimatic 235 Windtunnel And Pcb Replacement is a critical service assembly designed to restore the core functionality of your Miller Multimatic 235 multiprocess welder. This genuine OEM kit addresses two vital systems within your machine: the thermal management structure and the electronic control center. When a welder suffers from significant internal damage—whether due to impact, electrical faults, or environmental wear—replacing individual components may not be enough. This comprehensive kit ensures that the internal housing and the brain of the machine are perfectly synchronized.

Wind Tunnel Technology™ Restoration

Miller's proprietary Wind Tunnel Technology is a defining feature of the Multimatic series. It is an internal design that directs cooling airflow specifically over components that require thermal regulation, such as rectifiers and transformers, while shielding sensitive electronics (like the PCB) from dirt, dust, and debris. Over time, or due to physical damage, this internal structure can become compromised, leading to inefficient cooling or exposure of the circuit board to contaminants. The Miller 289250 kit includes a brand-new Wind Tunnel assembly, ensuring your machine continues to operate with the superior reliability and dust protection engineered by Miller.

Integrated PCB Replacement

Included in this kit is the replacement Printed Circuit Board (PCB) tailored for the Multimatic 235. The PCB is the operational heart of your welder, managing arc characteristics, wire feed speeds, and voltage output. If your machine has experienced a board failure, this kit provides the exact factory-calibrated board needed to get back to welding. By replacing both the wind tunnel structure and the PCB together, you ensure that the new board is properly seated and protected within a fresh housing, minimizing the risk of future failures. Trust only genuine Miller parts to maintain the warranty and performance standards of your industrial equipment.