Hi, know this is a bit late but saw your problem, an E-2 error code is the 2nd unit operation lever switches that are not being detected. They are located on the belt side of the machine ie non operators side, on the end of the operations lever shaft and there is a band of switches on a circuit board. It is frequently caused by the black plug socket coming adrift. If this plug socket is ok then check that the switches sit opposite the actuator in each position of the operation lever. These switches detect the movement of the operation lever so that both the 1st and 2nd unit handles follow each other in synchronisation.
Hope this helps - Dave