Miller 170 PSI Pressure Switch NO 1/4-Inch Terminals

Get Your Welder Back to Work with Genuine Miller Parts

Is a faulty sensor keeping your welding machine down? The Miller 235866 Pressure Switch is the genuine replacement part you need to restore functionality and get back to fabrication. This switch is rated for 170 PSI and operates as a Normally Open (NO) device, meaning it completes the circuit only when the necessary pressure is detected. It is a common component in Miller cooling systems and pneumatic controls, acting as a watchdog to ensure your equipment has the pressure it needs to run safely.

Don't risk your expensive welder with generic "one-size-fits-all" switches that might not trigger at the right moment. This OEM Miller part is calibrated specifically for Miller machines, ensuring that your error codes clear and your system runs exactly as the engineers intended. The switch features convenient 1/4" Fast-On tabs, making installation a breeze—simply unplug the old leads and slide them onto the new switch. No complex wiring or soldering is required, which means you spend less time fixing and more time welding.

Symptoms of a bad pressure switch can include error codes related to coolant flow, the machine refusing to arc, or intermittent shut-offs. Swapping out a suspect switch is a cost-effective troubleshooting step that can save you from replacing more expensive components like pumps or torches. Welders Supply is your trusted source for authentic Miller Electric parts, helping you maintain the performance and longevity of your investment.

Whether you are running a high-production shop or a garage fabrication business, downtime is money lost. Keep your equipment running at peak performance with the Miller 235866. Check your owner's manual for part compatibility and order today for fast shipping.