Mitsubishi Electric · FR-D700 Inverter
An error has occurred in detecting the compressor's rotational position, which is critical for proper inverter control. This can prevent the compressor from starting or running smoothly, leading to system shutdown.
Click steps to track your progress.
Verify the connections of the compressor position sensor (e.g., Hall effect sensor) to the inverter PCB, ensuring they are secure.
Check the integrity of the sensor wiring for damage, breaks, or looseness.
Measure the output signals from the position sensor during a start attempt (if safe and accessible) to confirm its functionality.