Smart Display Error Codes
If you are receiving an error code on your Pack Mule Smart Display, you can use the drop-down menus below to select the matching code for diagnostics information and recommended solutions.
Our latest AC-Powered models
Models with -CA at the end
Controller Diagnostic LED Codes
For visual diagnosis of system faults, a green LED is provided on the body of the controller. It flashes a different number of times, in a repeated pattern, when there is a fault. The number of flashes indicates the type of fault.
Sevcon Controller Diagnostic Codes
1. A Light Emitting Diode (LED) is used to indicate controller status.
2. When operating normally, the LED will be ON continuously.
3. If the controller is faulty, the LED will be OFF.
4. If there is a vehicle fault the LED will flash.
5. The information given by the flashing is as follows (below):
Low resistance or short circuit between M1 and B- producing a low voltage across the Mosfets.
Mosfet s/c, motor s/c to B-, power wiring.
Contactor coil short circuit.
Coil s/c, coil wiring.
Contactor welded or wiring fault giving a high voltage between M1 and B- before closing the
Welded contactor tips, power wiring.
No high voltage (approximately equal to battery voltage) between M1 and B- after closing the contactor.
Coil wiring, power wiring, motor o/c.
Accelerator input high at start up.
Accelerator wiring. Accelerator set towards maximum.
Incorrect battery voltage - less than 13V or higher than 45V.
Correct battery voltage, loose connections, discharged battery.
Controller has overheated. Allow controller to cool.