LG 1.5 Ton 3 Star AC — Inverter Compressor, Energy Use and Which Rooms it Suits Best

Enjoy quick, powerful cooling for your medium-sized room with the LG 1.5-ton 3 Star AC. Buy yours on Easy EMIs with Bajaj Finserv’s financing options.
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3 min
24-May-2025

LG 1.5 Ton 3 Star AC models are designed for efficient cooling performance, smart energy management, and comfortable operation in medium-sized rooms up to 150 sq.ft. These air conditioners combine inverter compressor technology with AI-enabled cooling modes to deliver faster cooling while optimising electricity usage. With annual power consumption ranging from around 769 to 1070 units depending on the model, they offer a balanced combination of performance and energy efficiency for Indian households.

These ACs are suitable for bedrooms, living rooms, office cabins, and study areas where consistent cooling and quieter operation are preferred. LG also equips its latest models with features like AI Convertible Cooling, HD Anti-Virus Filters, Ocean Black Protection, stabiliser-free operation, and smart airflow systems. Select models additionally offer Wi-Fi connectivity, app control, Him Clean technology, and Viraat Mode for enhanced convenience. Their durable copper condensers and modern cooling technologies make them ideal for long-term daily usage in varying Indian weather conditions. To know more, head to any of Bajaj Finserv’s 1.5 lakh partner stores in 4,000 cities in India. Choose your ideal model, pay with Easy EMIs, and enjoy zero down payment on select deals. Simply check your loan eligibility now and bring home your desired AC without worrying about overspending.

LG 1.5-ton 3 Star air conditioners - Overview

LG 1.5 Ton 3 Star AC models are designed to deliver efficient cooling, smart energy management, and reliable long-term performance for Indian households. Available in both split and window AC variants, these models feature inverter compressors, AI Convertible Cooling, HD anti-virus filters, and stabiliser-free operation for enhanced convenience. They are suitable for medium-sized rooms and offer balanced electricity consumption with improved cooling efficiency. Buyers can also explore smart features like Wi-Fi connectivity, app control, auto-clean technology, and silent operation in select models. Along with competitive pricing, LG also provides durable copper condensers, advanced air purification systems, and multiple cooling modes for comfortable daily usage.
 

Explore a range of low priced air conditioners if you are looking for a budget friendly option.

Also read - LG Vs Voltas ACs


 

LG 1.5 Ton 3 Star AC - Key features

LG offers multiple 1.5 Ton 3 Star AC models with smart cooling technologies, inverter compressors, air purification filters, and convertible modes designed for efficient cooling and convenient everyday usage.


 

LG US-Q18JNXE 1.5 Ton 3 Star 2025 Inverter Split AC

This premium split AC comes with Wi-Fi connectivity, app control, AI-enabled customised cooling, and a 6-in-1 AI Convertible Cooling system. It features a Magic Panel display, 4-way swing, HD Anti-Virus Filter, Viraat Mode, and AI Dual Rotary Compressor for efficient cooling up to 55°C ambient temperatures. The model also supports stabiliser-free operation, silent functioning, and annual power consumption of 852.44 units.


 

LG AW-Q18WUXA 1.5 Ton 3 Star 2026 Inverter Window AC

Designed for users preferring window AC installation, this model offers convertible 4-in-1 cooling, HD Filter, 4-way air swing, and super silent operation. It includes features like memory function, self-diagnosis, low gas detection, and Ocean Black Protection. The Variable Speed Compressor supports efficient cooling up to 54°C. It is suitable for users seeking durable performance with simpler installation and maintenance requirements.


 

LG AS-Q19MNXE 1.5 Ton 3 Star 2026 Inverter Split AC

This high-performance split AC features a powerful 5.3 kW cooling capacity with 6-in-1 AI Convertible Cooling and 4-way swing functionality. It includes HD Anti-Virus filtration, Viraat Mode, Him Clean technology, and ADC Sensor support. The Variable Speed Compressor ensures stable cooling performance even in extreme temperatures up to 55°C while maintaining efficient energy consumption at 927.09 units annually.


 

LG AS-Q18JNXE 1.5 Ton 3 Star 2026 Inverter Split AC

The model combines AI Convertible 6-in-1 cooling with a highly energy-efficient performance of 769.55 annual power units. It includes features like Magic Display, AI Dual Rotary Compressor, Frost Wash/HimClean technology, Child Lock, and anti-virus filtration. With lower indoor noise levels at 26 dB and stabiliser-free operation, it is ideal for bedrooms and workspaces requiring quieter cooling performance.


 

LG AS-Q19XNXE 1.5 Ton 3 Star 2026 Inverter Split AC

Built for powerful cooling requirements, this model offers 5 kW cooling capacity with 6-in-1 AI Convertible Cooling modes and 4-way swing airflow. Features like HD Anti-Virus Filter, Him Clean, ADC Sensor, Viraat Mode, and silent operation improve user convenience. The AC also supports stabiliser-free performance and durable Ocean Black Protection for reliable long-term usage in demanding summer conditions.


 

LG 1.5 Ton 3 Star AC Models - Key differences and comparisons

These LG 1.5 Ton 3 Star AC models differ in cooling technology, smart features, airflow systems, energy efficiency, and installation preferences.

ModelKey differences and USPs
LG US-Q18JNXEWi-Fi enabled split AC with app control, AI cooling, 4-way swing, and balanced energy efficiency for smart homes.
LG AW-Q18WUXAWindow AC with simple installation, convertible cooling, silent operation, and practical features for compact urban spaces.
LG AS-Q19MNXEPowerful 5.3 kW cooling capacity with 6-in-1 AI cooling, Him Clean technology, and superior airflow performance.
LG AS-Q18JNXEMost energy-efficient model with low annual consumption, quieter operation, AI cooling, and Frost Wash cleaning support.
LG AS-Q19XNXEPremium cooling-focused model with 5 kW capacity, advanced air purification, and strong cooling for harsh summers.

LG 1.5 Ton 3 Star AC models - Price in India

LG 1.5 Ton 3 Star AC models are positioned across attractive price segments, offering advanced inverter cooling technologies, smart features, and durable performance for different household cooling requirements.

ModelPrice in India
LG US-Q18JNXE 1.5 Ton 3 Star 2025 Inverter Split ACRs. 33,990
LG AW-Q18WUXA 1.5 Ton 3 Star 2026 Inverter Window ACRs. 39,823
LG AS-Q19MNXE 1.5 Ton 3 Star 2026 Inverter Split ACRs. 41,490
LG AS-Q18JNXE 1.5 Ton 3 Star 2026 Inverter Split ACRs. 36,990
LG AS-Q19XNXE 1.5 Ton 3 Star 2026 Inverter Split ACRs. 42,990

LG 1.5 Ton 3 Star AC Troubleshooting - Common cooling issues and causes

  • Weak cooling may occur due to dirty air filters, blocked airflow, incorrect temperature settings, or low refrigerant gas levels.
  • Unusual noise can result from loose installation components, dust accumulation, or improper indoor unit placement.
  • Water leakage issues are commonly caused by clogged drain pipes or excessive moisture buildup inside the AC unit.
  • If the AC does not start, check for power supply fluctuations, remote battery issues, or tripped circuit breakers.
  • Frequent auto shutdown may happen because of overheating compressors, dirty condenser coils, or incorrect mode selection during extreme outdoor temperatures.

LG 1.5 Ton 3 Star AC maintenance guide - Filters, servicing intervals and auto-clean function

  • Clean HD and dust filters every two to four weeks to maintain airflow quality and efficient cooling performance.
  • Schedule professional AC servicing at least once before summer and once after heavy seasonal usage for better durability.
  • Regular condenser coil cleaning helps improve cooling efficiency and reduces excess electricity consumption over time.
  • Use built-in Auto Clean, Him Clean, or Frost Wash functions to reduce moisture buildup and maintain internal hygiene.
  • Check refrigerant levels, outdoor unit airflow, and drainpipe cleanliness periodically to prevent cooling issues and improve long-term AC performance.
     

Purchase your LG AC with Bajaj Finserv

Purchasing a new LG AC is now incredibly convenient. With Bajaj Finserv financing options, you can manage the cost of your purchase through Easy EMIs. You might even find zero down payment offers on certain models. Simply check your pre-approved loan offer, walk into any Bajaj Finserv partner store, and you can select the perfect AC for your home.

Benefits of shopping with Bajaj Finserv

  • Competitive prices: Get the best rates across top brands, making quality appliances accessible without overpaying.
  • Easy EMIs: Pay in instalments without budget worries, ensuring financial flexibility while bringing home premium products.
  • Zero down payment: Bring home select models without a hefty upfront payment, perfect for managing expenses smartly.
  • Wide accessibility: Shop from 1.5 lakh+ partner stores across India, ensuring convenience wherever you are.
  • Free home delivery: Enjoy doorstep delivery on select appliances, adding ease to your shopping experience.

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Frequently asked questions

Can I buy an air conditioner on Easy EMI?

Yes, you can purchase an air conditioner with Bajaj Finserv's Easy EMI options. If you are an existing user of the Bajaj Finserv EMI Network Card: 

  • Explore a variety of air conditioners on Bajaj Mall
  • Choose the preferred model and visit a Bajaj Finserv partner store to check it out in person.
  • Use your EMI Network Card and avail of Easy EMIs for affordable monthly payments
  • Enjoy your new air conditioner on Easy EMIs

If you don't have a Bajaj Finserv EMI Network Card, start by checking your EMI eligibility and take the first step towards enjoying the affordability and convenience of Easy EMIs.

What is the current consumption of the LG 3 Star 1.5 ton AC?

The electricity consumption of LG 1.5 Ton 3 Star AC models varies depending on the model, cooling capacity, and inverter technology. Annual power consumption generally ranges between approximately 769 units and 1070 units. Models with AI Convertible Cooling and inverter compressors help optimise power usage according to room cooling requirements and temperature conditions.

What is the model number of LG 1.5 ton 3 Star AC?

LG offers several 1.5 Ton 3 Star AC models across split and window categories. Popular model numbers include LG US-Q18JNXE, AS-Q18JNXE, AS-Q19MNXE, AS-Q19XNXE, and AW-Q18WUXA. These models differ in cooling capacity, smart features, airflow technology, energy efficiency, and installation preferences for different household requirements.

How much electricity does a LG air conditioner use?

LG air conditioners use different amounts of electricity depending on tonnage, star rating, usage hours, and inverter technology. LG 1.5 Ton 3 Star inverter AC models typically consume between 769 and 1070 annual power units. AI cooling modes and inverter compressors further help reduce unnecessary power consumption during regular operation in Indian weather conditions.

What is the cooling capacity of a LG 1.5 ton AC?

The cooling capacity of LG 1.5 Ton 3 Star AC models generally ranges between 4.4 kW and 5.3 kW depending on the specific model. Higher-capacity variants provide faster cooling and better airflow performance, especially during peak summer temperatures, while maintaining stable energy-efficient operation through inverter compressor technology and convertible cooling modes.

Do the LG 1.5-ton 3 Star ACs have inverter technology?

Yes, LG 1.5 Ton 3 Star AC models feature inverter technology for improved cooling efficiency and lower electricity consumption. Depending on the model, LG uses AI Dual Rotary Compressors or Variable Speed Compressors that automatically adjust cooling output according to room temperature, helping maintain comfort while reducing power usage and operational noise levels.

Can I use the LG 1.5-ton AC in a medium-sized room?

Yes, LG 1.5 Ton 3 Star AC models are suitable for medium-sized rooms up to approximately 150 square feet. They are commonly used in bedrooms, living rooms, office cabins, and study spaces. Features like 4-way swing, AI cooling, and turbo modes help ensure faster and more uniform cooling across the room during hot weather.

What inverter compressor technology does LG use in its 1.5 ton 3 star AC range?

LG uses AI Dual Rotary Compressors and Variable Speed Compressors in its 1.5 Ton 3 Star AC range. These inverter compressors intelligently regulate cooling performance according to room conditions, helping reduce temperature fluctuations, operational noise, and electricity usage. They also improve cooling durability and maintain stable performance even during high outdoor temperatures in summer.

What room size is best suited for an LG 1.5 ton 3 star AC?

An LG 1.5 Ton 3 Star AC is best suited for rooms measuring up to approximately 150 square feet. This includes medium-sized bedrooms, living rooms, office spaces, and guest rooms. The cooling performance may also depend on ceiling height, sunlight exposure, insulation quality, and the number of occupants regularly using the room.

Does the LG 1.5 ton 3 star AC include a Wi-Fi or smart control feature?

Select LG 1.5 Ton 3 Star AC models include Wi-Fi connectivity and smart app control features. For example, the LG US-Q18JNXE supports app-based operation and customised AI cooling modes. These smart features allow users to remotely control temperature settings, cooling modes, and operational functions directly through compatible mobile applications.

Is an LG 1.5 ton 3-star AC a practical choice over a 5-star model for daily use?

Yes, an LG 1.5 Ton 3 Star AC can be a practical choice for users seeking balanced performance and affordability. It generally offers lower upfront pricing while still delivering efficient inverter cooling and smart features. For moderate daily usage, 3-star models can provide satisfactory electricity savings without the higher purchase cost of 5-star variants.

Why is my LG 1.5 ton 3-star AC not cooling as effectively as expected?

Reduced cooling performance may occur because of dirty air filters, blocked airflow, low refrigerant gas levels, incorrect mode settings, or poor room insulation. Outdoor unit blockage and delayed servicing can also affect cooling efficiency. Regular maintenance, filter cleaning, and professional servicing help restore proper cooling performance and improve overall AC operation efficiency.

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