User manual LG LRNN386TDA0

[. . . ] 1-4 Disposing of the unit 1-5 Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12. Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-1 The Feature of Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Normal operation Exit 600. 0 500. 0 400. 0 300. 0 200. 0 100. 0 0. 0 136 144 152 120 104 128 112 160 0 8 16 32 56 64 72 80 88 96 24 40 48 Samsung Electronics 12-10 Troubleshooting 12-2-9 Coil temperature sensor error 1. Checklist : 1) Is the sensor connector connected correctly?3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?4) Is the resistance value of sensor connection pull_up correct?Troubleshooting procedure Is the sensor connector connected correctly in accordance with a color?Yes No Is the temperature sensor connected correctly without separation?Yes Does the both terminal of sensor satisfy the resistance value in accordance with temperature?(Refer to the R/T TABLE) Yes No Is the resistance value of sensor connection pull_up 18. 2K?No No No Reconnect the sensor connector. Change the position of sensor. Exchange the sensor. Exchange the PCB. Yes Exchange the PCB. Normal operation Exit 400. 0 350. 0 300. 0 250. 0 200. 0 150. 0 100. 0 50. 0 0. 0 13 31 40 58 67 76 85 22 49 94 -5 4 103 -50 -41 -32 -23 -14 12-11 Samsung Electronics Troubleshooting 12-2-10 Fan error 1. Checklist : 1) Isn't the fan locked?Yes Is the connection cable for the compressor and power terminal normal?Yes Exchange the PCB. No Correct the sensor position or exchange the sensor. No Correct the cable connection. Samsung Electronics 12-14 Troubleshooting 12-2-13 Communication error 1. Checklist : 1) Is the communication cable between the indoor unit and outdoor unit connected correctly?2) Isn't the power cable and communication cable error?Troubleshooting procedure Restart after power off. Is the communication error occurred again?Yes Isn't the power cable and communication cable error?Yes Is the connection of communication cable normal?Yes Is it the outdoor 2 Micom(Inverter + Main) model?Yes Exchange the outdoor unit PCB. No Terminate the service. No Correct the wrong wiring. No Correct the connection of communication cable. No Exchange the indoor/outdoor unit PCB. 12-15 Samsung Electronics Troubleshooting 12-2-14 Compressor start error 1. Checklist : 1) Is the connection of cable for the compressor and power?2) Is the interphase resistance of compressor normal? [. . . ] Open the upper front grille by pulling the lower right and left tabs of the grille. Deodorizing Filter 2. Pull out the deodorizing and Bio filter. Wash the filters with clean water, then dry them in the shade. Insert the filters into the original position. [. . . ]