I have an EDGE 491 and an EI shows up in the display. Do you know what is wrong??

SOURCE: edge 491 exercise bike monitor panel dead

http://www.academy.com/images/pdf/Fitness_Quest/Edge_Recumbent_Bike_491r.pdf

Mine went dead last Spring. I ordered a replacement part from Fitness Quest. I think the link is above. Actually, while I was waiting for the part, I reconnected all the wires on the whole bike and the panel worked. So I actually have an extra new working panel if Fitness Quest doesn't have the part for some reason and u want mine. Double check ALL the connections of the wires first. They come loose easily.
Nancy

SOURCE: I have an Edge 491 Exercise bike and the control

Take a look at the battery compartment under the panel (left looking up). I had a similar problem and had just fixed it. Hopefully you can get the same results.
If the strip of metal with the spring is corroded, take the batteries out, and carefully remove the metal strip. I used metal duct tape and wrapped the piece of metal with the tape. Carefully put a slight bend in the middle of the strip and reinsert the strip. If the batteries do not connect up, bend the piece a bit more or add more of the metal duct tape. After doing this, the panel came back to life. If this is not your problem, then my apologies. If it is, then good luck.

SOURCE: ei system 4115c appears to boot up but no display on screen

This happened to me, give the pc 5 minutes, then:
Type your User name, then
Press tab and type the Computer description, press enter and wait 5 secs then press enter again. Wait for the computer to load windows for the 1st time and display will appear. Not sure why it did this. FYI pressing enter the 2nd time made there be NO password for this user logon so you'll have to go through control panel to assign one if desired.

Regards Zeth