The error code E07 on the TIG 180 DC from RED by Lorch indicates a faulty internal supply voltage of the device. The device detects that the internal components are not being supplied with power correctly.
Possible Causes and Solutions
Internal supply voltage (15V) faulty
Resolution: Contact RED Service. See also article: "Welding machine defective - what to do?"
Note:
An internal supply voltage that is too low can lead to unstable welding behaviour and malfunctions.
An overview of all error and warning messages for the RED TIG 180 DC can be found in this article: Troubleshooting (RED TIG 180 DC)
Detailed information on operation and further advice on handling your RED TIG welding machine can be found in the operating manual for the TIG 180 DC