[Dwayne Barnes]

Coolant temperature , oil pressure, and fan speed red lights blinking. Display says, "Open" after each one. Also, unloading tube light stays on when tube is in and goes out when tube is out.

 

[Big Cob]

Check the connection of the harness going through the cab floor , we had problems with a few of the connections and had to splice a jumper wire to bypass the plug on a couple of wires on ours .

 

[white6810]

I know this is an old thread but I have the same issue out of the blue. Did that solve your problem

 

[Dan Vanderwell]

I had a similar issue once on a Challenger 670. Somehow the display changed its setting to a MF9790 or gleaner. Did all sorts of strange things till I figured that out. It finished the night before fine but somehow changed when starting the next day. It’s in the manual and easy to check or reset.

 

[white6810]

That fixed that problem. Thanks