On a recent flight, my hall effect current sensor went from its normal reading of 22 amps to -78 amps IIRC. Hopefully it is the sensor and not the engine monitor itself. How does one go about troubleshooting this failure? I assume that the three wires going to the circuit board are power, ground, and signal return. What voltage is returned at X number of amps? I didn't see anything in the manual regarding theory of operation that might help.
Thanks,