Microwave Not Heating Or Heats Too Slowly? Watch This!

This video gives some tips for determining why your microwave might heat intermittently, cook too slowly, or sometimes just quit heating. There are two main causes, each with different symptoms. I'll explain both, and how to check for them. I'll also provide a bonus tip for if your microwave is completely dead.
0:00 Start
0:01 What's The Problem?
1:13 Functional Test
2:44 Consistently Poor Heating?
3:19 Make Your Own Waveguide!
3:54 No Heating Or Intermittent Heating?
5:28 Safety Issues
6:34 Magnetron Removal Described
7:41 Magnetron Thermostat
8:14 Bonus Tip (For Dead Microwave)
9:16 Magnetron Being Removed
9:41 Bonus Tip Explained
11:19 Magnetron Inspection