SQUARE WAVE TIG 255 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-7 TROUBLESHOOTING & REPAIR Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION FUNCTION PROBLEMS The yellow light (PL1) on the front panel is not lit. 1. Normal condition - this light w