38Service Manual – SC6000 04 - Control System
Power Module (E3) Error Codes
Power module error codes will be displayed on the main display. However, the error number is also ashed
on the two-color status LED on the module itself. The status LED has 2 colors; red and yellow. The red LED
will ash out which digit of the code is coming next, and the yellow LED will ash out the value of that digit.
For example, to ash out an M4 Overload error with a code of 034, the red LED will ash once, followed by
the yellow LED ashing 3 times. Then the red LED will ash twice, followed by the yellow LED ashing 4
times.
Code Description Comments
2-001 E3 Timeout The power module is not sending heartbeat messages.
2-011 Precharge Fail The capacitor bank failed to charge to the KSI voltage. The K2 relay will not
be allowed to close.
2-012 K2 Overload The current ow from the K2 relay is higher than the permitted set point.
2-013 K2 Contact Weld The power module has detected that the K2 relay output power is active
after the module has de-energized the relay coil.
• Disconnect the small relay coil wires, and then check the output voltage
with a voltmeter.
2-014 K2 Contact Open The power module has detected that the K2 relay output power is absent
when the coil is supposed to be energized.
• Check the voltage at the coil wires. If battery voltage is present, then the
relay has likely failed.
2-017 OverVolt Cutoff The power module has detected and over-voltage condition in the capacitor
bank and has shut down.
2-018 UnderVolt Cutoff The power module has detected and under-voltage condition and has shut
down all output and the K2 relay.
2-021 M1 Open The power module has detected an open circuit to the respective motor.
This could be the result of a disconnected wire at the motor or module, or it
could be that the motor’s brushes have worn beyond service.
M1=Right Brush, M2=Left Brush, M3=Side Sweep, M4=Vac1, M5=Vac2
2-022 M2 Open
2-023 M3 Open
2-024 M4 Open
2-025 M5 Open
2-026 M6 Open The power module has detected an open circuit to the squeegee (M6) or
Deck (M7) lift actuators.
• If no broken connection is located, this could also be caused from the
limit cams inside the actuator to be misadjusted, which could prevent the
actuator from being neither raised nor lowered.
2-027 M7 Open
2-028 M10 Open The power module has detected an open circuit to the option pump. This
could be the result of a disconnected wire at the motor or module, or it could
be that the motor’s brushes have worn beyond service.
2-031 M1 Overload The power module has detected the motor is operating above its
established parameters. The most common cause for such an error is when
the motor is experiencing an obstruction, binding, or under excessive load.
2-032 M2 Overload
2-033 M3 Overload
2-034 M4 Overload
2-035 M5 Overload
2-036 M6 Overload
2-037 M7 Overload
2-038 M10 Overload