Artcool Multi Split Inverter A/C (ThinQ)
The LG Artcool features an advanced auto-cleaning system that dries and sterilizes the interior, preventing bacteria and mold buildup for a healthier indoor environment.
LG Aircon Servicing Singapore
4.9Google RatingNo hidden fees
Upto 20% off on first booking!
30 days warranty
Transport Included
StringsSG Pte Ltd · UEN 201813375G
Trusted LG Aircon Servicing & Repair in Singapore
Book LG servicing, a chemical wash or a repair below. If the display is showing a CH code, the guide further down explains what it means.
LG wall-mounted and multi-split aircons are widely used in Singapore homes. When an LG unit detects a fault it shows a code on the indoor unit display, usually "CH" followed by a number, or blinks the indicator lamps in a pattern on models without a display.
How LG units show an error code
- On units with a display, the code appears on the indoor unit as "CH" and a number, sometimes alternating with the set temperature.
- On units without a display, the indicator lamp blinks in a pattern: count the long and short blinks between pauses.
- Note the code or pattern and the model number from the side label before calling.
- Switch the unit off at the isolator for 5 to 10 minutes; if the code returns after restarting, it is a genuine fault.
Blinking light? Blinking lamps or a CH code mean the unit has stopped on a fault. A code that clears after a restart and never returns was usually a power blip; one that comes back needs a technician.
Common LG Aircon Error Codes
| Code | What it means | Usual cause / what to check |
|---|---|---|
| CH01 | Indoor room temperature sensor fault | Sensor or connector replacement. |
| CH02 | Indoor coil (pipe) temperature sensor fault | Sensor or connector replacement. |
| CH05 | Indoor and outdoor units have lost communication | Check outdoor power; otherwise wiring or PCB. |
| CH10 | Indoor fan motor fault | Blower jammed by dirt, or a failed fan motor. |
| CH61 | Outdoor condenser running too hot | Dirty or blocked outdoor coil, poor ventilation, or low gas. |
| CH67 | Outdoor fan locked | Outdoor fan obstructed, or the fan motor has failed. |
Codes and the remote button sequence vary by model. Confirm against your unit's manual or the label on the indoor unit, and give the code to the technician when you book.
Servicing LG Aircons in Singapore: What to Know
- A CH61 in Singapore is very often an outdoor unit squeezed into a hot service yard or blocked by stored items; clearing the space and cleaning the condenser often fixes it.
- LG dual inverter models run on R32 or R410A depending on age; check the outdoor label before a gas top-up.
- LG multi-split systems share one outdoor unit, so service it along with the fan coils.
Gas top-up with StringsSG, half tank to full tank per unit: R410A $106.72 - $147.20, R32 $147.20 - $193.20, R22 $73.60 - $101.20.
LG Aircon FAQs
CH05 means the indoor and outdoor units are not communicating. Check the outdoor unit has power and its isolator is on. If it does, the cause is usually wiring between the units or a control board, which needs a technician.
CH61 means the outdoor condenser is running too hot. In Singapore that is usually a dirty outdoor coil, an outdoor unit with too little air around it, or low refrigerant. Clear the space around the unit and have the condenser cleaned and the gas checked.
With StringsSG it costs the same as any other brand: general servicing is $49.68 for one wall-mounted unit, transport included, with a lower price per unit for more units. Outdoor condenser servicing is $66.95 for one condenser.
General Aircon Service Pricing
StringsSG offers the most affordable and transparent aircon servicing pricing in Singapore.
One-Time Servicing
| No. of Aircons | Pricing |
|---|---|
| 1 AC unit | SGD 49.68 |
| 2 AC units | SGD 59.84 |
| 3 AC units | SGD 76.65 |
| 4 AC units | SGD 93.45 |
| 5 AC units | SGD 105.66 |
| more than 5 | Open a request |
Annual Package
| No. of Aircons | 4 times/year | 3 times/year |
|---|---|---|
| 1 Unit | SGD 192.76 | SGD 144.57 |
| 2 Units | SGD 229.77 | SGD 172.33 |
| 3 Units | SGD 291.25 | SGD 218.44 |
| 4 Units | SGD 351.39 | SGD 263.54 |
| 5 Units | SGD 393.06 | SGD 294.80 |
| more than 5 | Open a request | Open a request |
Gas Top-Up Pricing
| Gas Type | Price (SGD) |
|---|---|
| R410A | S$106.72 - S$147.20 |
| R32 | S$147.20 - S$193.20 |
| R22 | S$73.60 - S$101.20 |
Aircon Chemical Wash Pricing
Ensure your air conditioner is clean and germ-free with our annual chemical wash.Chemical hydro wash sits between the two: the blower and coil are partly dismantled and water-jet rinsed, without a full strip-down. Learn more about Basic Chemical Wash & Overhaul
Chemical Wash Price
| No. of Aircons | Pricing |
|---|---|
| 1 AC unit | SGD 84.64 |
| 2 AC units | SGD 165.05 |
| 3 AC units | SGD 226.41 |
| 4 AC units | SGD 287.78 |
| 5 AC units | SGD 349.14 |
| more than 5 | Open a request |
Chemical Hydro Wash Price
| No. of Aircons | Pricing |
|---|---|
| 1 AC unit | SGD 121.44 |
| 2 AC units | SGD 236.81 |
| 3 AC units | SGD 324.85 |
| 4 AC units | SGD 412.90 |
| 5 AC units | SGD 500.94 |
| more than 5 | Open a request |
Chemical Overhaul Price
| No. of Aircons | Pricing |
|---|---|
| 1 AC unit | SGD 153.51 |
| 2 AC units | SGD 299.35 |
| 3 AC units | SGD 410.64 |
| 4 AC units | SGD 521.94 |
| 5 AC units | SGD 633.23 |
| more than 5 | Open a request |
LG Aircon Servicing Cost Calculator
Use this calculator to get an estimation of how much you should be paying for LG Aircon Servicing in Singapore.
6-Step Aircon Servicing Process
At StringsSG, we follow a proven 6-step approach to general aircon servicing in Singapore — ensuring your unit runs efficiently and reliably.
1. Air Filter & Front Panel/Cover Cleaning
Dirty air filters can block airflow and strain the aircon. Technicians clean or jet-wash filters to restore optimal airflow.
2. Cleaning of Evaporator Coil
The evaporator coil can collect dirt, reducing efficiency. The technician cleans it using a soft brush or vacuum.
3. Drain Pan or Tray Cleaning
Clogged drain pans may lead to leaks. Technicians clean out debris from the pan to ensure proper drainage.
4. Vacuuming of Drainage Pipe
To prevent water backup, the drainage pipe is vacuumed to remove blockages that may disrupt water flow.
5. Outdoor Condenser Check
Technicians assess the outdoor unit’s performance and recommend cleaning if necessary, based on inspection or customer request (extra charges may apply).
6. Monitor Refrigerant Gas Level
Technicians check the refrigerant gas level if poor cooling is observed or upon client request, and may recommend top-up if needed.
Watch the Step-by-Step Servicing Video
Service Warranty
Enjoy comprehensive workmanship warranty coverage with every LG aircon service. We're committed to quality and stand behind our work, so you can stay cool and worry-free.
General Servicing
Includes air filter cleaning and performance check-up for your LG unit.
30 Days Workmanship Warranty
Chemical Cleaning
Deep cleaning to remove mold, dust, and buildup from LG indoor and outdoor units.
60 Days Workmanship Warranty
Gas Refill
Top-up of LG aircon refrigerant gas (R22 / R410A / R32) for optimal cooling efficiency.
90 Days Workmanship Warranty
LG Air Conditioner Models in Singapore
Discover the latest LG aircon systems available for residential use. Expert installation and servicing by StringsSG.
At StringsSG, we specialize in the servicing and installation of LG air conditioning systems, including single-split and multi-split inverters. Our certified technicians are trained to handle all LG AC models with efficiency and care.
LG Dualcool Single Split Smart Inverter (ThinQ, R32)
The LG Dualcool inverter (US-Q242K) cools up to 40% faster than standard models. Enjoy rapid, efficient cooling with R32 refrigerant and smart ThinQ connectivity.
LG 18K BTU Multi Split Inverter System 3 R32
Equipped with a BLDC compressor and pressure sensors, this system offers outstanding energy efficiency, reliability, and long-term cost savings.
LG 28K BTU Multi Split Inverter System 4 R32
Faster cooling, quieter operation, and a more compact design make this LG system ideal for Singapore homes seeking efficiency and comfort.
New LG Aircon Price Range
Thinking of upgrading your home with an LG air conditioner? We offer competitive prices tailored to your space and needs. Costs vary depending on the model, cooling capacity, and installation complexity. Contact us today for a custom quote.
Manufacturer Warranty Coverage
All new LG air conditioning systems come with a manufacturer warranty ranging from 1 to 5 years. Our team will guide you through the specific coverage details for your selected model to ensure peace of mind and protection.
Common LG Aircon Error Codes & Problems
LG air conditioners may experience issues that trigger specific error codes. Understanding these codes can help you quickly identify and resolve problems with your unit.
Typical LG Air Conditioner Problems
- Insufficient cooling or weak airflow
- Unusual noises or vibrations during operation
- Water leakage or dripping indoors
- Sensor or control board malfunctions
- Compressor or outdoor fan motor failure
Common LG Aircon Error Codes Explained
LG air conditioners display error codes to help diagnose issues with specific components. Below are common LG "CH" error codes and their meanings:
| Error Code | Possible Cause | Recommended Solution |
|---|---|---|
| CH 01 | Communication failure between indoor and outdoor units. | Inspect and secure all wiring connections between units. |
| CH 02 | Indoor temperature sensor is malfunctioning. | Replace the defective temperature sensor. |
| CH 24 | Faulty heat exchanger temperature sensor. | Replace the indoor or outdoor heat exchanger sensor. |
| CH 26 | Water leakage detected from the drain pan. | Check for blocked drain pipes and clean if necessary. |
| CH 67 | Malfunctioning outdoor fan motor. | Replace the damaged fan motor with a new one. |
Please note: These error codes may vary depending on your LG aircon model. If you're experiencing any of the above issues, our experienced technicians at StringsSG can perform a detailed diagnostic and provide quick, professional repairs.
Aircon Servicing Demand in Singapore: July–September 2026
How aircon servicing requests moved through the hotter months and the 2026 haze - by month, week, service and area..
Singapore Aircon Servicing Report 2026
What Singapore requests, books and pays for aircon servicing - StringsSG's annual data report, with figures for every area..
Why is your air con leaking water and how to fix
The indoor unit of your air con has a component called the evaporator coils which helps to cool the warm air. As warm air touches the condenser..
Repair Aircon Printed Circuit Board (PCB)
An aircon PCB (Printed Circuit Board) refers to the control or circuit board in an air conditioning unit that controls various functions of..
Aircon Thermistor Guide
Aircon Thermistor replacement can cost anywhere between $120 to $250 based on several factors, such as the aircon brand/model, complexity of..
Aircon Condenser Cleaning & Repair
An aircon condenser (also known as an air conditioning condenser) is a vital component of an air conditioning system that helps to remove heat..
Complete Guide To Aircon Installation
Moving in to a new house or just want to replace your Aircon? Everything you need to know about a new Aircon installation. Topic Highlights..
Fix Aircon Gas Leak | Leakage Indications & Repair Cost
Aircon refrigerant gas leakage is a common issue faced by air conditioning systems in Singapore. Learn more about the cause, indications..
Aircon Chemical Wash & Overhaul Prices
What a chemical wash, hydro wash and chemical overhaul each include, how long they take, what they cost per unit, and which one your aircon needs..
Top 9 Reasons Why Your Air Conditioner Is Not Cooling
When your aircon is turned on but the air is not cold, it could mean many things like, the machine has run out of refrigerant gas..
Top 5 Reasons Why Your Air Conditioner Is Overheating
When your air con is working for long hours, it may overheat, which is the most common reason. Bad Or Dirty Air Filters- Air filter..
