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Working on a Lionel 203 engine and here is my dilemma.... engine alone runs well..... new e unit and tests good.. when I connect both together I get  no engine function. The engine hums and the E unit does function when I try to engage engine. I checked all connections and they are correct and solid. What am I missing???? Any help would be appreciated.....

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I find the easiest way to test an eunit is with a test lamp.  With the eunit disconnected from the motor, connect power, 12 volts, to the the outside fingers. That is the black and green wires. Connect a 12 volt light bulb to the inside fingers, the two yellow wires, or in later units the yellow and blue wires. Then operate the eunit. The lamp should go on, then cycle it, the lamps should go off.  On, off, on, off, each time it cycles. If this is not the pattern, something is wrong with the eunit.

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Ste 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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