To get the most out of these simulators, focus on these core diagnostic techniques: Safety First

Apprentice Electricians (iOS) This iOS app offers a concise, focused approach to high-voltage troubleshooting. It features a totally free experience with no ads or pop-ups and covers 17 different electrical problems.

psim - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. This... PSIM Software Quite Universal Circuit Simulator

If you have voltage at the midpoint, the problem lies further down the line.