Can you tell us what type of locomotive this is? Lionel, MTH, Marx?
It sounds like the e-unit board is bad and working only in one direction. Unsolder the wires to the motor and solder them in reverse and that will get your loco running in forward, but with no reverse now. Here is an exploded view and parts list for your loco. The board and cost is listed as part callout #10.
Larry
Hey a bought a modern 4-4-2 its no 885 lettered for santa fe....well after some clean up and lucubration it runs great but only backwards....if i lock the eunit it doesnt run at all....but if i dont...it will run in reverse...but thats it...it will cycle but not move at all....any ideas?
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