110v MCB LED Layout
The Following LEDs will help diagnose if the MCB has failed or causing intermittent problems.
** CAUTION ** Several of the follow- ing troubleshooting require dealing with live voltage. Have the treadmill turned off and unplugged when checking wire connections.
NOTE: The display console may still power up with the AC LED off.
AC LED - Indicates that AC power has been applied to the MCB. It does not give indication of voltage level, if this LED is not lit and the tread- mill does not power up, verify the following:
1.The treadmill is plugged into a wall outlet.
2.The ON/OFF switch is turned to the “ON” position.
3.Verify with a VOLT METER that 110VAC is present at the outlet. Units with
4.Verify 110v (+/- 10%) AC voltage at AC1 & AC2 wires.
After the above have been verified and the AC LED is still “OFF”, the MCB should be replaced.
+18v LED - Indicates the presence of an acceptable level of voltage to operate the MCB. If this LED is off or dim, the AC voltage level is not acceptable to properly power the MCB. Verify the following:
1.Verify with a VOLT METER that 110VAC is present on on pins AC1 & AC2.
After the above step has been verified and the + 18V LED is still “OFF”, and the display does not power up, replace the MCB.
+11v LED - Indicates there is +11 volts supplied to the display board. If this LED is not lit verify the following:
1.The display cable is damaged or pinched, disconnect the display cable and verify if the LED lights up. If LED lights up replace the cable.
After the above has been verified and the +11 LED is still “OFF”, the MCB should be replaced.
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