TroubleshootingSamsung Electronics653-28 IPM over current error (Error Code : E464)1. Check items1) Check the power and restarting after power reset2) Check the outdoor unit installation and environments→ Check if the outdoor unit inverter PBA related wires are disconnected. Check the installation environment3) Check for indoor unit installation environment4) Check for open service valve5) Check the assembly status of the compressor and compressor wire6) Check the compressor wire2. Check procedureYesCheck the outdoor unit installation and environment→ Check for normal operation →End service1. Check for wire disconnection related to outdoorunit inverter PBA2. Remove the obstacles on outdoor unit air inletand secure enough spaceCheck the indoor unit installation and environment→ Check for normal operation → End service1. Remove obstacles on air inlet and secureenough space2. Remove obstacles on air outlet and secureenough spaceNoIs the outdoor unit installed correctly?NoYesTurn off the power and turn iton again after 30 secondsRe-install them correctlyNoYesIs piping/wiring betweenthe indoor and outdoor unitdone correctly?Is the indoor unit installed correctly??[AMSSSSXMDCS series :Check for disconnected wires]Cont.
