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LG F09AHJ A/C indoor fan runs with push start, but will not start by itself.

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Bad start capacitor

Posted on Dec 04, 2012

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I have a neo plasma lg 7kw will not heat LG Air conditioner


Make sure the setting on the remote is correct . Sun symbol for heating. Make sure the filters are clean. On heating, the indoor unit will 1/2 open the flap but the fan shouldn't start. The outdoor unit should start and if working properly, will be blowing cold air. The indoor unit will open the flap fully and the indoor fan will start once it gets hot then you should feel warm air. If the outdoor unit is blowing warmish air, I would say the reversing valve coil has failed or one of the indoor temp or pipe sensors are faulty. If a sensor fails, a "CH" error should appear on the display.

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My LG split Ac is running some times but some times not working and showing error code CH09


Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB.
Multi V= Indoor unit EEPROM error - Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control.

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Don't understand outdoor self diagnosis code


This sounds like a fault with the inverter or the compressor motor itself,

Nov 26, 2013 | LG Heating & Cooling

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AC unit wont work, inside coils are hissing but outside unit not turning on.


If thisnis a central air conditioner and there is hissing at the indoor coil then the compressor is running, it is possible that both fans are not running. The indoor motor may not run if the control board is bad, capacitor is bad or the motor itself is bad. The outdoor fan may have a bad capacitor or the motor itself is bad

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Lg art cool beeps but doesnt start


Indoor fan motor mechanism locked. Or indoor coil sensor defective. Rotate manually f.m. If easy to rotate, replace sensor. If not, replace bearings or motor.

Jan 13, 2011 | LG Art Cool LA181CNW Split System Air...

1 Answer

My indoor blower is not working it blinks 8 times


This alarm state is a CH08 alarm. Which indicates that the indoor unit fan motor has a locked rotor. Solution is to check the indoor fan capacitor and replace or test the windings of the indoor fan motor. Note: the indoor fan motor is a BLDC fan motor and can not be replaced with any other motor. It runs of a voltage regulated frequency.

Mar 18, 2010 | LG LS-L1210CL Mini Split Air Conditioner

2 Answers

The internal fan wont run , it will run if you flick start the internal fan with your fingers. The fan motor was replaced to no avail, could it be the triac playing up. Ross


This is the main PCB diagram of the indoor unit of LG LS-K1830 model.526bf5a.jpg

  • Check the shown capacitor. Lift one leg then connect the test leads of the ohmmeter to the capacitor terminals. Do the same with the test leads in reverse. The pointer should deflect quickly to the right then slowly deflect back to the left on both instances. Otherwise the capacitor is bad and must be replaced with the same specifications.
  • If the capacitor is good or the problem still exist after the capacitor is replaced, check the voltage between the 2 inner terminals of the motor harness 4-pin connector as shown above. Voltage should read about 5 volts. If voltage is below 5V or not present, replace the indoor unit main board assembly.
  • Check the voltage between the labeled terminals of the 5-pin connector shown above. The voltage should be about 17 volts. If voltages is below 17 volts or not present, check the connection between the indoor and outdoor unit main boards. If connection is good, replace the outdoor unit main board.

Nov 26, 2009 | LG LS-K1830HL Heat Cool Mini Split Air...

1 Answer

ICE COMES OUT AND STOP WORKING


If you are referring to the indoor section on a split system, then turn off the a/c at the thermastat. Turn on only the indoor fan and let it run untill it can defrost itself. Then locate the leak in the refrigerant piping, repair and recharge the system.

Sep 04, 2009 | LG LSC121PMA Split System Air Conditioner

1 Answer

Lg split indoor fan runs non stop


Hello Hamid,
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye

Aug 11, 2008 | LG LS-L1210CL Mini Split Air Conditioner

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