TROUBLESHOOTING THE ELECTRICAL SYSTEM
2.Verify that the AC wall outlet is supplying the correct power in one of two ways: a) Use a voltmeter to verify that the AC line voltage is between 108 and 130 VAC (or between 208 and 240 VAC, if applicable) at the AC wall outlet; or b) Plug in an alternate
3.Plug the AC power cord into the wall outlet and proceed to the next section.
C.Verify DC power.
1.Make sure that the AC power cord is plugged in and that the AC wall outlet is delivering the proper voltage.
2.The indicator light should be lit. If it is, proceed to step #3. If the indicator light is still not lit, replace the power supply and test the new power supply.
3.Disconnect the cable from the DC power connector located on the bottom cover. Use a DC voltmeter to verify
4.Remove the right side cover. Reconnect the DC power cable to the machine. Locate the relay/resistor circuit board located just inside the frame, midway between the top and bottom steps (refer to Wiring Diagram 1). There are three red indicator lights along the bottom edge of the relay assembly circuit board. They are labeled, from top to bottom: Field, Power, and Relay. Ensure the black and white wire power connector (labeled J2 on the relay resistor circuit board) is securely connected to the relay resistor circuit board.
a.The Power light should be lit. If it is, go to step #5. If it is not, disconnect the power connector from the J2 position on the relay
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