Mitsubishi Electric · PAR-21MAA MA Remote Controller
The remote controller itself has detected an error in receiving signals, either from other components or its own internal processes. This indicates a problem with the remote controller unit or its immediate communication line, preventing it from processing incoming data correctly.
Click steps to track your progress.
Verify the remote controller model is an MA remote controller (PAR-21MAA) as specified.
Inspect the transmission wire connected to the remote controller for signs of electrical noise interference.
Cycle power to the unit (turn off, then on again) to re-check for the error.