Question about LG Heating & Cooling

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Model: LSJ092V-3 Cooling selected When a/c switched on with the remote the set temp shows on readout on wall unit and temp LED's either side of set temp flash on and off for a couple of seconds and then go off leaving the set temp reading only,the compressor does not start. The fan in the wall unit runs.

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  • barklay Mar 23, 2011

    Thanks Dioteic
    The room temp is 26C and a/c set 21C,and compressor and outdoor fan do not start.
    Normally when unit is calling for cool, LED,s on display adjacent to temp display are on,now they are off.
    It seems temp signal is not being computed and sent to start compressor.
    Regards
    Barry

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Hi, you will need to troubleshoot the air condition...

follow the tips below:

On a hot day, there are few things more frustrating than a faulty air conditioner. If you own an LG air conditioner, you may occasionally experience issues that prevent the unit from effectively cooling your home. Some problems occur more commonly than others, so it is a good idea to familiarize yourself with these issues to make troubleshooting easier.

Fan Motor Does Not Run

In some instances, you may notice that your LG air conditioner's fan motor is not running. The fan motor's failure to run may be due to a simple power issue. Check to make sure the unit is plugged into a working outlet. If the outlet has the proper voltage, but the fan motor still does not run, examine the air conditioner's power supply cord. A damaged cord should immediately be replaced. When there is no damage to the power supply cord but the motor still does not run, there may be an issue with the air conditioner's installation wiring. Consult the wiring diagram in the installation or owner's manual to verify that all wires and switches have been connected properly. Tighten any loose terminals as well. If the air conditioner's fan motor does not rotate, the fan blade may be coming into contact with the shroud or the cross-flow fan may be striking the scroll. Adjust the assembly so all the parts are properly aligned.


Compressor Does Not Run

In some cases, an LG air conditioner's fan motor may function properly but the compressor is unable to run. As with a stalled fan motor, check the unit's voltage requirements to ensure it is receiving an adequate power supply. Consult the unit's wiring diagram and examine the air conditioner for loose or misplaced wires. Tighten or repair any loose connections and terminals. If the wiring is in order, make sure the thermostat is set at the coldest setting and restart the unit. The compressor may fail to run if there is an issue with the capacitor, so make sure that it falls within the manufacturer's acceptable rating and that it is not shorted or damaged. Replace if necessary. In addition, a compressor that fails to run may be damaged itself. If it has an open circuit, replace the compressor.


Noises From the Fan Motor

An LG air conditioner's fan motor may sometimes make excessive noise. Check to see if the unit's grommets are worn or missing and replace them if necessary. The fan motor may also make excessive noise if the fan itself is out of balance or cracked. Replacing the fan should reduce the noise.


Dirty Air Filter


Periodically, an LG air conditioner's air filter may become dirty. If the air filter is clogged with trapped particles, the airflow from the unit may be blocked and the cooling capacity is reduced. Check the air conditioner's filter twice a month to determine if cleaning is required. Pull the air filter out of the front grille assembly and examine it for buildup. If dirty, clean the filter with lukewarm water. Be sure to shake the air filter afterward to get rid of any excess water and replace it in the grille assembly. When an air filter becomes torn or damaged, it should be replaced with a new filter, which can be purchased from an authorized dealer or customer service center.



Hope it helped..

Posted on Mar 23, 2011

  • SANYADE  OMOTOLA
    SANYADE OMOTOLA Mar 23, 2011

    Compressor Does Not Run

    In some cases, an LG air conditioner's
    fan motor may function properly but the compressor is unable to run. As
    with a stalled fan motor, check the unit's voltage requirements to
    ensure it is receiving an adequate power supply. Consult the unit's
    wiring diagram and examine the air conditioner for loose or misplaced
    wires. Tighten or repair any loose connections and terminals. If the
    wiring is in order, make sure the thermostat is set at the coldest
    setting and restart the unit. The compressor may fail to run if there is
    an issue with the capacitor, so make sure that it falls within the
    manufacturer's acceptable rating and that it is not shorted or damaged.
    Replace if necessary. In addition, a compressor that fails to run may be
    damaged itself. If it has an open circuit, replace the compressor.

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