Troubleshooting66Samsung ElectronicsIPM over current error (Error Code : E464) (cont.)YesTurn off the power and change the locationof the temperature sensor or replace itNoIs the location andmeasured value of thetemperature sensor normal?Check the connection of the compressorNoAre the compressorwires correctly connected tothe compressor?Yes1. Change the compressor: When the resistancevalue between phases of the compressor isdifferent → Turn the power on → Check fornormal operation → End service2. Reassemble wire: When the wire connection ofthe compressor is wrong → Turn the power on→ Check for normal operation → End service3. Change the compressor: When loud abnormalnoise generates (such as metal grinding), orsevere vibrationNoCheck the compressor1. Is resistance value between phases ofthe compressor same? (U ↔ V, U ↔W, V ↔W)2. Is the wire connected to compressor normal?(disconnection, wrong connection)3. Is there any noise whenthe compressor rotates?YesChange the compressorNoYesIs the resistance betweencompressor body and chassis MegaΩ?Open the valveNoIs the service valve completely open?Cont.Cont.
