Common AC Problems: Troubleshooting Tips for Indian Users

Common AC problems in India and how to fix them
March 6, 2024
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Air conditioners are essential for combating the sweltering heat across many parts of India. However, encountering problems with your AC can be a common occurrence, especially when it’s needed the most.

Understanding how to troubleshoot these issues can save time, money, and discomfort. This article goes into common AC problems faced by Indian users, offering practical troubleshooting tips.

Common AC problems in India and how to fix them
Common AC problems in India and how to fix them

Our recommendation for most AC problems is to get an AC expert/technician so that they can quickly diagnose what the problem is.

However there are some easy ones that you can diagnose yourself, and you’ll be more aware when you speak to the AC repair expert.

AC Maintenance Tips for Indian Homes: Ensuring Efficiency and Longevity

Additionally, we’ll link to helpful topics like choosing the best size ACs, understanding AC star ratings, selecting the best AC brands, and essential AC maintenance tips.

AC Not Cooling Properly

One of the most common issues is the AC failing to cool effectively. This can be due to dirty air filters, low refrigerant levels, or issues with the compressor.

Scenario: On a hot summer day in Mumbai, you notice your AC isn’t cooling as it should. The room remains warm even after hours of operation.

Troubleshooting Tips:

  • Check and clean the air filters. A clogged filter restricts airflow, reducing cooling efficiency.
  • Ensure there are no leaks and that the refrigerant level is adequate. You might need a professional to refill the refrigerant.
  • Inspect the outdoor unit for any obstructions or dirt on the condenser coils.

AC Making Strange Noises

Noises like banging, buzzing, or whistling are not just annoying but indicative of underlying issues.

Scenario: Your AC in Delhi starts making a rattling noise every time it kicks on, disrupting the peace in your home.

Troubleshooting Tips:

  • Banging or rattling noises could point to loose or broken parts inside the AC unit. Secure any loose components and replace broken parts.
  • Buzzing noises often relate to electrical issues. It’s best to consult with a professional for electrical problems.

AC Emitting Bad Odors

A foul smell emanating from your AC can be due to mold, bacteria, or even a dead rodent within the system.

Scenario: After turning on your AC in Kolkata, you notice a musty smell filling the room, making it uncomfortable to stay indoors.

Troubleshooting Tips:

  • Clean the AC filters and inspect the drain pan and line for blockages. Standing water can lead to mold and bad odors.
  • Consider a professional cleaning service to clean the ductwork and other internal components thoroughly.

Water Leaking from AC

Water leaks inside the house from your AC can cause damage to your property and indicate a malfunction within the unit.

Scenario: You find water pooling around your AC unit in Chennai, causing concern over potential water damage to your home.

Troubleshooting Tips:

  • Check the drain line for clogs and clear any blockages. A clogged drain line is a common cause of water leaks.
  • Ensure the AC unit is level. An unlevel unit can cause improper drainage.

AC Not Turning On

An AC unit that won’t turn on is often due to electrical issues, a tripped circuit breaker, or a faulty thermostat.

Scenario: On a particularly hot day in Jaipur, you find that your AC won’t power on, leaving you in discomfort.

Troubleshooting Tips:

  • Check your home’s electrical panel to ensure the circuit breaker hasn’t tripped.
  • Verify the thermostat is set correctly and functioning. Sometimes, replacing the batteries or resetting the thermostat can solve the issue.

AC Remote Not Working Properly or Completely Dead

Scenario: Amidst the scorching heat, you try to adjust your AC settings for a cooler evening indoors, only to find that the remote control is unresponsive or completely dead.

Troubleshooting Tips:

  1. Check the Batteries: The most common culprit is often the simplest one. Dead or weak batteries can render your remote useless. Replace them with new ones to see if this resolves the issue.
  2. Clean the Remote: Over time, dust and debris can accumulate inside the remote, particularly around the battery contacts and buttons. Carefully open the remote (if possible) and gently clean the interior with a soft, dry cloth.
  3. Reset the Remote: Some AC remotes come with a reset button or sequence. Consult your AC’s manual to see if there’s a recommended way to reset the remote to its factory settings.
  4. Check for Interference: Ensure there are no obstacles between the remote and the AC unit that might block the signal. Also, fluorescent lights can sometimes interfere with the remote’s infrared signal.
  5. Pair the Remote Again: If you’re using a smart AC remote or an AC model that requires pairing, refer to your user manual to re-pair the remote with the AC unit.
  6. Use a Universal Remote: If the original remote is damaged beyond repair, consider purchasing a universal AC remote. These are readily available and can be programmed to work with most AC models.

Complementary Topics for Comprehensive AC Care


Dealing with AC problems can be daunting, but understanding common issues and troubleshooting can empower Indian users to keep their homes cool and comfortable efficiently.

Remember, when in doubt, consulting with a professional is always the safest approach to ensure your AC’s longevity and performance.

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