That's something I've never seen before in my 34 years doing appliance repair - I can't ever recall seeing an Electrolux/Frigidaire or any other brand have a Hi-Limit Thermal CutOff in the RTD sensor circuit - from the circuit board it appears from the date I saw in the video this is a 2004 or there about range.

Seen that 2 times so far.  The first one sure threw me for a loop. Tested it at control and it was Open. ( thought it was odd for it to fail completely open). Went to test at the part, found the tech sheet found it on diagram, and and noticed the bimetal there, and found it open. 

The troubleshooting guide of the manual did state:

#3 Look for broken Security thermostat (open)

So I would also add that the original sin could be to not FULLY RTFM.  I am guilty as charged sometimes, not reading to the END of the list of possibilities for a given error.  But yes, the schematic makes this absolutely clear.

My bad, I meant the tech sheet, or whatever document that you were using in the video.  This is a great example where the MORE likely issue is not listed first.  I have hit this a few times where it has bitten me good...ie   assumed that the last listed possibility is the least likely, they don't seem to be listed in order of possibility occurrence.  for example I have seen this in tech sheets...

DRAIN ERROR:

1. Bad Pump
2. Obstruction in sump
3. Clogged drain hose

All strange things happen in Electrolux/Frigidaire.  As they have designed their front load style dryers, when the hi limit opens it will show up "Door open" error. won't start cycle  so a novice (warranty repair company i saw that happened )replaced door lock assembly only to get the same error code again. so again only by reading that schematic you can tell why it's throwing up that error code.