W7004961 - ESAB Thermal Arc Fabricator 181i Replacement Thermistor 47K

Restore Your Fabricator 181i with the W7004961 Thermistor

Is your Fabricator 181i acting up? If you are seeing a persistent yellow temperature light even when the machine is cold, or if your fan is running erratically, you might be dealing with a failed temperature sensor. The ESAB W7004961 is the genuine replacement thermistor (temp sensor) for the Fabricator 181i multi-process welder. This small but mighty part is responsible for telling the machine's brain how hot the internal components are getting. When it fails, your welder might think it's overheating when it isn't, locking you out of welding, or it might fail to detect real heat, putting your expensive machine at risk of burning out.

Swapping out a bad sensor is a cost-effective way to save a machine that is otherwise working perfectly. This is the exact OEM part used by the factory, meaning it has the correct 47K resistance rating and the right plug to fit directly onto your circuit board without any wire splicing or guessing. It is designed to mount securely to the internal heatsink to get an accurate reading of the power block temperature.

Don't let a small sensor keep your shop at a standstill. Troubleshooting thermal errors often starts here. Whether you are maintaining a fleet of machines or fixing up your personal rig, using genuine ESAB/Thermal Arc parts ensures that your duty cycle limits are accurate and your machine is safe to push to the limit. Get your 181i back to burning wire and laying beads with this direct-replacement thermal sensor.