Runterborn

Ultimately I called the dealership and ordered an OEM fan assembly and installed it one night after work.  The OEM assembly worked and both fans cycle as expected. 

The overheating issue is gone for now.  Pulled the Dorman out and returned it.  

14 minutes ago, akirby said:

Dormans suck - that might either be a bad unit or the connection isn't good.  I would assume the temp sensor is the same one that's feeding the temp gauge so if that shows it overheating then that's probably not the problem.  

That is what I am afraid of.  I may just bite the bullet and buy and OEM to see if that fixes the problem.  The removal and reinstallation was quite easy I must say.  On a side note, our Edge has 198,000 miles on it and has had one type of electrical issue or another since we purchased the dang thing.  

38 minutes ago, mvan231 said:

Have you captured any wiring diagrams to start diving into the power and ground of the circuit itself? I looked them up and it looks like this isn't a typical relay controlling a high current circuit like a blower motor relay circuit would be. Apparently the module has a relay, but there is no direct method to power the fans. Which relay were you checking? I don't see a relay for cooling fans in the underhood fuse panel diagram.

There is a relay on the drivers side of the fan assembly.  I have the towing package so there was one lead going in and two, one to each fan, coming out.  Based on the diagram above the relay plugs into C1554.

I have, what seems to be, a very common problem with my 2013 Edge.  Overheats in stop/go traffic or City driving.  I put the AC on Max and pop the hood.  Neither fan is spinning.  After reading various threads about this, I start at the fusebox under the hood.  Fuses good.  Check the connections to the relay, nothing obvious, i.e. connectors not burnt or corroded, but the module itself looks like it might have gotten hot.  The label on the module is discolored and flaking off.  After another quick search I figure that I need to replace the relay.  Relay replaced and still no fans.  Replace fan assembly, with a Dorman, and return relay, still no fans.  While I seem to be enjoying this  game of throw parts at the problem, I honestly don't know where to go next.  I read somewhere that the Cylinder Head Sensor may be bad which may be causing the relay to not turn off/on but cannot confirm that information.

Any thoughts?