What to do if there is no welding current but auxiliary output is OK in my Mosa TS 200 BS/EL Welding System?
- DdanaholtAug 1, 2025
If your Mosa Welding System has no welding current but the auxiliary output is working, there are a couple of things to check: * First, check the open circuit welding voltage. If it's okay, the diode bridge is likely fine. However, if it's only 1/3 or 2/3 of the expected value, inspect the diodes or SCRs. * If the diode bridge seems to be working correctly, the problem might be with the welding current control PCB. In this case, consider replacing the PCB.











