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  • July 7, 2024 at 2:23 pm #1129
    theachub_m40wgrTheAChub
    Keymaster

      Premium

      Inverter Radiation Fin Temperature Rise Abnormality

      Error Code       L4

      Applicable

      Models

      		 REYQ-T
      Method of Error

      Detection

      		 Detect temperature of power module of the compressor inverter PCB.
      Error Decision

      Conditions

      		 Thermistor located inside the power module of the inverter PCB for compressor and fan motor. Cooling tube plate poor heat-exchange.
      Supposed

      Causes

      		 „

      „

      		 Cooling tube plate not fixed with screws

      “U0” error
      „ Defective inverter PCB
      „ High outdoor air temperature

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