ER14 as bed raises to start print?

[WylieK 0]

Just today, the Ultimaker 3 Extended I've been working with has been giving me a bed heating error (ER14) at a very odd time.  I'll send a print, the printer will read the job and begin the print, but as the bed raises to start the print it will only get about halfway to the printhead and then stop when the Error interrupts. I have a hard time believing its the wiring because once I shut the printer off to clear the error, manually set the build plate back to its default position, and turn it back on again--the error is gone.

 

Has anyone experienced this issue/have any advice as to where to start troubleshooting?

 

Thanks