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Lg air conditioner troubleshooting manual -

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LG GENERAL WALL MOUNTED-INVERTER TYPE SVC MANUAL Pdf Download | ManualsLib.



  Finding answers and information is easy with LG online service and support. Owner's Manuals, requesting a repair, software updates and warranty information are. They should be written on page 27 of this manual. TROUBLESHOOTING. Before Calling for Service. The appliance is equipped with an automatic error.    

 

LG Air Conditioner Not Turning On? Top 6 Causes (+ Fixes) – Temperature Master.



   

You can find an LG circuit board on Amazon. The power cord may also have been improperly installed or damaged. Over time, power cords may become frayed due to excessive and heavy usage. This poses the risk of electrocution and fire hazards.

It is imperative to have a stable power connection in the room where the air conditioner is installed. If the issue is the power supply, wait for approximately 3 minutes to restart the air conditioner to prevent a circuit trip once you restore the power. Make sure the air conditioner is mounted correctly.

If the AC was improperly disrupted for some reason, then there may have been an interference in the cables and power source. You should not use an adapter. However, if you must, then you should only use the recommended UL-Listed Adapter. For more information about air conditioning power issues, watch the following videos by Watch Joe Cools Air Conditioner and Barnacules Nerdgasm:.

Remote controls are battery-powered. When an air conditioner has enough power and the remote control works, then it could be that something in the cooling system is damaged and needs repair.

A float switch stops your air conditioner from leaking into your room with residual condensation. Air filters tend to get clogged due to the accumulation of dust and water particles. This pile-up of dust and other solid particles hampers the flow of air in your AC. I recommend regular checking and draining of the filters. Remember to turn off the electricity that connects with the AC before checking the air filters to see whether they are clogged.

Always ensure that:. The problem is that finding a trustworthy and affordable repair service — and actually booking an appointment with them — can feel like pulling teeth. Some services never call you back.

Page 18 Piping temperature of the outdoor heat exchanger maintain below defrost starting temperature for 4 minutes after 35 minutes continuous operation. Constant speed compressor is ON after 10 seconds from the arrival time of 30 Hz Option frequency and is speed up its revolution till Hz Option 2 Every EEV have pulse Option of opening when starts defrosting operation.

Page 20 2. The single phase power DC is converted into a three phase chopped DC voltage with a variable frequency. When the frequency changes, the rotation speed of the compressor changes resulting in an changed refrigerant circu- lation.

This leads to changeable amount of the heat exchange per unit. Page 21 5. Page 22 If the temperature reached Toff condition system will count 5 times after that and system will stop with error code. Heat Sink temp 5 Hz 5 Hz frequency Page 23 5. Page 26 System will stop if this situation occurs 5 times in 1 hour and error code will be generated. Page 27 5. Page 29 5. In case of the initial operation, oil returning operation is made, after completing initial operation. Check before Test Run Test Run Flow chart Test Run Detail Page Check Before Test Run 1.

Check before Test Run Check to see whether there is any refrigerant leakage, and check whether the power or transmission cable is connected properly. Check whether the liquid pipe and gas pipe valves are fully opened. NOTE: Be sure to tighten caps. Confirm that V megger shows 2. Page 34 1.

Pumping Down Evacuation All amount of refrigerant leaked Gas Charging After Evacuation Self-diagnosis Function Cycle Troubleshooting Guide Electronic Parts Troubleshooting Guide Page Way, 3-Way Valve 1. Page Gas Charging After Evacuation approximately g each time while operating the air conditioner in the cooling cycle; however, one time is not suffi- cient, wait approximately 1 minute and then repeat the procedure pumping down-pin.

Page Cycle Troubleshooting Guide 5. Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air, and operating current.

Difference Temp. When the room air humidity is relatively higher, temperature difference is smaller. Page 40 1. The suction pressure is usually 8. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. Page Electric Parts Troubleshooting Guide 6. Does "Beeping" sound is made from the indoor unit? Check the sensor for Indoor temperature is attatched as close as to be effected by the themperature of Heat Exchange EVA.

When displaying Error code, refer to the trouble shooting guide. Check the electrical wiring diagram of Outdoor side. Check the open or short of connecting wires between Indoor and Outdoor. Turn off main power. Page 45 When indoor Fan does not operate. Page 48 D-pipe sensor Cons. Pipe sensor temp. Page 50 PCB assembly? Page 52 Comp. Check power source Current sensing circuit is right? Check current sensing circuit. Page 56 7. If the voltage of the sensor is 2.

If the resistance of the sensor is 0 or 5VDC, then sensor is abnormal.

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