SiUS121602E Code Indication on Remote ControllerService Diagnosis 1134.3 Outdoor Uniti: ON, h: OFF, j: BlinksNote: 1. The error codes in the parenthesis ( ) are displayed only when the system is shut down.2. When a sensor error occurs, check the remote controller display to determine which sensor ismalfunctioning.If the remote controller does not indicate the error code, conduct the following procedure.∗ Turn the power off and then on again. If the same LED indication appears again immediatelyafter the power is turned on, the fault is in the thermistor.∗ If the above condition does not result, the fault is in the CT.3. The indoor unit error code may take the precedence in the remote controller display.4. Turn the power off and then on again. If the same LED indication appears again, outdoor unitPCB is faulty. Replace the outdoor unit PCB.Outdoor Unit LED Indication ErrorCodes Description ReferencePageGreen RedA 1 2 3 4 5j h h h h h 00 Normal condition —UA Unspecified voltage (between indoor unit and outdoor unit) 139UH Anti-icing control in other rooms 139j h h i i h (U0) Refrigerant shortage 134j i h h i h U2 Low-voltage detection or over-voltage detection 136j h i h h h U3 Wiring Error Check Unexecuted 138j i h i i h A5 Anti-icing control for indoor unit 140j i i i h h E1 Outdoor unit PCB abnormality 142j i h i h h (E5) OL activation (compressor overload) 143j h i i h h (E6) Compressor lock 145j i i i i h E7 DC fan lock 146j h i h i h E8 Input overcurrent detection 147j i h h h h EA Four way valve abnormality 148j i h i h h F3 Discharge pipe temperature control 150j i h i i h F6 High pressure control in cooling 151j i i h h h H0 Compressor sensor system abnormality 152H6 Position sensor abnormality 154H8 CT or related abnormality 156H9 Outdoor temperature thermistor or related abnormality 158J3 Discharge pipe thermistor or related abnormality 158J6 Outdoor heat exchanger thermistor or related abnormality 158J8 Liquid pipe thermistor or related abnormality 158J9 Gas pipe thermistor or related abnormality 158P4 Radiation fin thermistor or related abnormality 158j i i h i h L3 Electrical box temperature rise 160j h h h i h L4 Radiation fin temperature rise 161j h h i h h L5 Output overcurrent detection 162i — — — — — — See the note 4. —h — — — — — — Check the power supply. —
