LG AC Repair in Dubai — Independent DUALCOOL Service

CH05 is a communication error between the indoor and outdoor units — the two are not talking to each other properly. The documented first step is genuinely worth trying yourself: switch the unit off at the breaker, leave it off for around five minutes, then restore power. A surprising number of CH05 events clear at that point. If it returns, the cause is usually the interconnecting wiring between the units, a connection that has corroded or worked loose, or a control board on one end. It is a communication fault, not a refrigerant fault, so nobody should be adding gas because of it.

LG divides its own catalogue into tropical and non-tropical models, and the tropical range uses a compressor LG markets as operating at substantially higher ambient temperatures. In the UAE that distinction is not marketing, it is functional. A non-tropical unit installed here is being asked to work outside the conditions it was specified for, and the result is exactly what people describe as unreliability: poor performance and protection trips through the hottest months. If your LG struggles every summer and always has, this is worth checking before anything is replaced.

CH10, which some models display as E6, points to the indoor fan motor circuit — the motor is not running as the board expects. A genuinely common real-world cause is physical obstruction rather than electrical failure: something fouling the blower wheel or blocking the fan. So the sequence is to look for obstruction first, then check the motor and its capacitor where fitted, then the board output. Replacing the board on a CH10 without checking for obstruction is a expensive way to not fix the problem.

The range found in UAE homes and small commercial spaces, centred on the DUALCOOL Dual Inverter wall splits, plus ducted, cassette and window units. Refrigerant varies with age — current DUALCOOL units are R32, older stock is R410A — which changes both the parts and the procedure. Give us the model number from the rating plate when you book so we bring the right components.

If the unit is still within its manufacturer warranty, contact the retailer you bought it from or the brand support channel for your region first. LG publishes a long compressor warranty on much of its inverter range, so it is genuinely worth checking before paying anyone. An independent repair can affect that cover. Our service is for units out of warranty, or where the owner has chosen to use an independent repairer, and we will say so plainly if we think you should use the warranty instead.

We publish the codes we have verified and describe the scheme rather than reproducing a long list we cannot stand behind for every model. LG uses a CH prefix and publishes codes on its own regional support material, which makes the scheme genuinely usable — unlike some brands where the mappings vary by manufacturing source. Where a code is not one we can confirm applies to your specific model, we read it on your unit against the correct reference and verify with measurements rather than guessing from a generic table.