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Page 145 Speed Level Series - Service & Parts Manual

January 2019Section 9 - Troubleshooting - 3084ES Models

There is a problem with the platform drive/lift select switch – both modes are selected together.

CHECK JOYSTICK SWITCHES! ___________________________ Flash Code: 2/2

There is a problem with the platform joystick switches – both directions are selected together.

RELEASE TRIGGER! ____________________________________ Flash Code: 2/2

The trigger was closed at power-on, or closed for too long with no function selected.

RELEASE GROUND SWITCHES!___________________________ Flash Code: 2/2

Ground function switches were closed at power-on.

RELEASE JOYSTICK SWITCHES!__________________________ Flash Code: 2/2

Platform joystick switches were closed at power-on, or closed for too long without trigger switch

(see SETUPS/INTERLOCKS/TRIGGER wait).

RELEASE OUTRIGGER SWITCHES!________________________ Flash Code: 2/2

Outrigger switches were closed at power-on.

Wiring Messages

The following are “wiring” HELP messages – problems have been detected which are likely due to

vehicle wiring issues:

FAULT: ENERGIZED VALVE - CHECK P5 WIRING! ____________ Flash Code: 3/2

FAULT: VALVE FEEDBACK HIGH - CHECK VALVE WIRING!_____ Flash Code: 3/2

There is a voltage on one or more valve outputs, when all outputs are off.

Check each valve output to trace where the invalid supply is coming from.

FAULT: CAPBANK VOLTAGE TOO HIGH - CHECK LINE CONT! __ Flash Code: 3/3

The voltage on the B+ stud of the controller (connected to an internal voltage stabilization

capacitor bank) is too high when the line contactor is off. B+ stud voltage should be

approximately 32 volts at idle.

Check the line contactor tips are not welded, and check the power wiring for errors.

FAULT: ENERGIZED LINE CONTACTOR - CHECK P5 WIRING! __ Flash Code: 3/4

There is a voltage on the line contactor coil output, when it is off.

Check wiring to the line contactor coil to trace where the invalid supply is coming from.

FAULT: MOTOR OVERLOAD! ______________________________ Flash Code: 3/5

The power protection circuits in the controller have activated to protect from extreme overload.

Check for short-circuit power wiring; check for a seized or shorted motor.

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Mec Speed Level Series User Manual

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