LG DUALCOOL dominates the residential apartment sector across all three cities. The Artcool series is common in upscale living spaces and master bedrooms. LG Multi V (VRF) systems are widely used in small-to-medium commercial projects in Khamis Mushait and Jazan.
Most Common Models in the Region
Most common models: DUALCOOL Premium (S/W/H-09/12/18TJH), Artcool Mirror, LG Multi Split (1+2 and 1+3 systems), ATNQ36 cassette series, and LG Multi V 5 for commercial use.
LG Dual Inverter Faults in the Dual Climate — Abha & Jazan
LG Dual Inverter models (DUALCOOL series) dominate residential apartments across the region. Dual Inverter technology means a twin-rotary compressor operating at variable speeds — giving higher efficiency but producing different fault patterns than conventional on/off compressors. Most common faults:
Based on hundreds of LG service visits across all three cities, these are the most frequent failure patterns:
CH 10 / CH 38 — Indoor Coil Sensor Fault
CH 10 on LG means the evaporator coil sensor has failed. Common in humid environments (Jazan) where moisture accelerates sensor degradation. Replacement is quick and straightforward.
CH 67 — Outdoor-Indoor Communication Fault
On LG Multi-Split units, CH 67 indicates lost communication between the outdoor and indoor units. Most common cause: damaged cable or faulty outdoor control board. Requires LG's proprietary diagnostic tool.
Artcool: Dim Screen or Weak Mirror Reflection
The Artcool's mirror panel is affected by Jazan's high humidity. The display dims over time. This is an aesthetic, not functional, issue — but it bothers owners of premium residences. Fix: replace the front display panel.
Outdoor Fan Noise in Cold Weather
In Abha during January and February, the outdoor fan produces noise on startup in cold weather — caused by metal expansion. Normal behaviour, but if it lasts more than 30 seconds, the motor needs inspection.
Oil Leak + Burning Smell
In LG units over 8 years old, compressor oil leakage can produce a faint burning smell. Switch the unit off immediately and call us — continued operation destroys the compressor completely.
Genuine Parts Policy for LG
We use genuine LG OEM parts in all repairs: sensors, PCB boards, communication cables, fan blades. Counterfeit LG parts are widely available in the market — we identify originals and can document the difference photographically if requested.
Our LG AC Services
All faults — free diagnosis, same-visit repair
Two preventive visits + gas check + full cleaning
Full indoor and outdoor unit cleaning — restores full efficiency
Correct refrigerant type per model spec, leak detection included
Service Coverage by City
LG service at 2,200m altitude — gas pressure corrected for elevation.
Asir CapitalLG repair in peak summer heat — fast response at peak fault season.
Daily ServiceLG maintenance in coastal humidity — corrosion and mould treatment.
Specialist Team