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[LG Air Conditioner for Cooling] Cooling operation fails. No cold air

Troubleshooting

Causes and Symptoms

  • When dehumidification or AI mode is set
  • When there are lots of dusts in the ultra fine filter
  • When the surrounding is hot due to not so smooth ventilation of air from the outdoor unit

Depending on the surrounding and setting of the indoor/outdoor unit, the product might fail to provide cooling or its cooling might be weak.

Try this

Check the operation mode of the air conditioner.

Change the cooling mode and set the target temperature of 18℃(64.4°F), and conditioner operation after it for more than 30 minutes and check if is cold.
Air purification standalone operation, dehumidification, AI, power saving operation and so on might not feel cold enough.

Clean the ultra-fine filter.

➔ If the AC filter is polluted, cooling may be degraded, and may cause noise and condensation.

Cautions for cleaning the filter

Functional filters apart from the ultra fine filters can not be washed with water.
First, check the filter management section in the user manual before cleaning it.

[Wall mounted air conditioner]

How to remove the filter of the wall-mounted air conditioners varies among models.
Check the filter type of the model that you are using. (See the figure below.)

1. Remove the filter and remove any dust with a soft brush or use a vacuum cleaner.
If it is severely contaminated, wash it in water using a neutral detergent and rinse it thoroughly with water. (Do not use hot water over 40℃(104°F).)

2. Fully dry the filter in well-ventilated and shaded place.

A type that opens the cover with the handle on the side of the product and takes out the filter. B type that opens the cover on the top of the product and takes out the filter. After washing with a vacuum cleaner and neutral detergent, drying in the shade.

Did you check the air ventilation condition of the outdoor unit?

➔ Remove obstacles near the outdoor unit.

If ventilation is not smooth due to an obstacle, cooling may be degraded.

How to remove obstacles around the outdoor unit

➔ Open the window of the place where the outdoor unit is located or the ventilation window in the outdoor unit room.

Open lower blades [louvers] in the ventilation window in the outdoor unit room as close to horizontal as possible.

Opening the wings of the ventilation window of the outdoor unit almost horizontally. When the angle of the wing is low or closed, the heat is not discharged well

This guide was created for all models, so the images or content may be different from your product.

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