samsung inverter AQV12 msan

samsung AQV12MSAN I have that ac about 3 years I dont have any problems sometimes display error E468 and i pull out the cable and after one minutes i put on electric tension 220 volts and he works without problems and he heat very good when the temperature is -10 he blow the air 48C celsius Im heating 76 m3 of air and i dont have problems

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