How to Stop Your AC from Blowing Hot Air in Summer

Learn simple steps to fix your AC blowing warm air. Find effective solutions and tips for better cooling.
SHOP IN-STORE
Explore Air Conditioners
SHOP IN-STORE
3 min
11-March-2025
Your air conditioner should keep your home cool and comfortable, but what if it starts blowing hot air instead? This issue can make summer unbearable, leaving you frustrated and sweaty. There are several reasons why your AC might stop cooling, including dirty filters, refrigerant leaks, or electrical problems. Fixing the issue quickly can save you from discomfort and prevent costly repairs. Regular maintenance and timely troubleshooting can help ensure that your AC functions properly throughout the season.

Check out the variety of air conditioners available on Bajaj Mall. Visit any of Bajaj Finserv’s 1.5 lakh partner stores in 4,000 cities to choose a model that suits your cooling needs. Enjoy Easy EMI and zero down payment offers exclusively with Bajaj Finserv.

Common causes of an AC blowing hot air

A faulty AC can turn your cool retreat into a hot and humid space. Here are some of the most common reasons why your AC may be blowing hot air:

  • Dirty air filters: Clogged filters block airflow, making it harder for your AC to cool the air. Cleaning or replacing filters every few months ensures better performance.
  • Low refrigerant levels: Refrigerant is essential for cooling. If there’s a leak, your AC will struggle to cool properly.
  • Thermostat issues: Incorrect thermostat settings or a malfunctioning thermostat can cause your AC to blow warm air instead of cool air.
  • Compressor problems: A faulty compressor can’t circulate refrigerant properly, affecting cooling efficiency.
  • Electrical faults: Blown fuses or faulty wiring can disrupt the AC’s cooling mechanism, causing it to blow hot air instead. Explore a variety of AC options to find the best fit for your home.

How to fix AC cooling issues quickly

If your AC is blowing hot air, here are some quick solutions to restore its cooling performance:

  • Check the thermostat settings: Ensure the thermostat is set to ‘cool’ mode and the temperature is lower than the room temperature.
  • Clean or replace the air filter: A clogged filter restricts airflow, so cleaning or replacing it can quickly improve cooling.
  • Inspect the circuit breaker: If the AC’s breaker has tripped, resetting it might fix the issue.
  • Look for refrigerant leaks: If your AC is low on refrigerant, call a professional to check and refill it.
  • Clean the condenser coils: Dirty coils can affect heat transfer, so keeping them clean ensures efficient cooling.
Find the best inverter ACs to enjoy energy-efficient cooling.

Regular maintenance tips to avoid hot air problems

Preventive maintenance can help keep your AC running efficiently. Follow these tips to avoid hot air issues:

  • Clean air filters regularly: Dust and dirt build-up restricts airflow, making your AC less effective.
  • Schedule annual servicing: A professional check-up can help identify and fix potential issues before they become serious.
  • Keep the outdoor unit clear: Ensure there are no obstructions like leaves or debris blocking airflow around the outdoor unit.
  • Check refrigerant levels: Low refrigerant affects cooling, so regular checks can prevent performance issues.
  • Inspect and clean the ducts: Dirty or leaking ducts can reduce cooling efficiency, so keeping them in good condition is essential.
You can also explore high-performance portable ACs for versatile cooling solutions.

When to seek professional help for AC cooling issues

While some AC issues can be fixed with simple troubleshooting, others require professional assistance. Here’s when you should call a technician:

  • Persistent hot air problem: If your AC continues to blow hot air despite troubleshooting, a technician can diagnose the issue.
  • Refrigerant leaks: Handling refrigerant requires professional expertise, so don’t attempt to fix leaks yourself.
  • Strange noises or odours: Unusual sounds or burning smells can indicate serious electrical issues.
  • Compressor failure: A faulty compressor is a major problem that needs professional repair or replacement.
  • Frequent short cycling: If your AC keeps turning on and off rapidly, it might be overheating or have electrical faults.
Discover top-rated 1.5-ton ACs for optimal cooling performance.

If none of these methods fix your AC blowing hot air, it might be time to consider getting a new AC. Visit the nearest Bajaj Finserv partner store and explore the wide range of options available. Select the ACs that suits your preferences and convert its cost into Easy EMIs. You can choose to repay it in a convenient tenure of up to 60 months. This financing solution from Bajaj Finserv is available on 1 million products.

Financing options with Bajaj Finserv

Bajaj Mall is your go-to platform for exploring various air conditioners, their features, and specifications. Once you have selected your ideal AC, you can visit our partner stores to finalise your purchase. Browse through various models, compare features, and select the one that best suits your cooling needs. Make your purchase hassle-free with convenient financing options, allowing you to choose a repayment plan that fits your budget. Enjoy the benefits of Easy EMIs and manageable instalments while upgrading to a cooler, more comfortable space.

Benefits of shopping with Bajaj Finserv

  • Competitive prices: Bajaj Finserv partner stores offer ACs at affordable prices, ensuring you get the best value for your money without breaking the bank.
  • Easy EMI plans: Spread your payments over a convenient tenure and make high-end ACs more budget-friendly.
  • Zero down payment: Selected AC models come with a zero down payment option, eliminating the need for a large upfront cost.
  • Wide range of choices: Choose from an extensive selection of ACs from top brands, available online and in partner stores.
  • Complimentary home delivery: On select AC models, you can benefit from free home delivery, making your purchase even more convenient.

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Frequently asked questions

Why is my AC blowing hot air instead of cool air?
If your air conditioner is blowing hot air, it could be due to several reasons, such as dirty air filters, low refrigerant levels, thermostat malfunctions, or electrical faults. A blocked or clogged condenser coil can also impact cooling efficiency. Additionally, issues with the compressor or a faulty capacitor might prevent the AC from functioning correctly. Regular maintenance, including cleaning filters and checking refrigerant levels, can help prevent such problems and keep your AC running efficiently.

How can I fix an AC that isn’t cooling properly?
Start by checking the thermostat settings to ensure it is set to cooling mode and the desired temperature. Clean or replace clogged air filters, as dirty filters can block airflow and reduce cooling performance. Inspect the circuit breaker and reset it if necessary, as a tripped breaker can stop the AC from working. Also, check for refrigerant leaks, which may require professional repair. Ensuring proper ventilation and keeping the outdoor unit clear of debris can also improve cooling efficiency.

Can dirty filters cause an AC to blow hot air?
Yes, clogged filters can severely affect airflow, making it difficult for the AC to cool the room effectively. When airflow is restricted, the evaporator coil may freeze, further reducing cooling efficiency. Additionally, a dirty filter forces the system to work harder, leading to higher energy consumption and potential damage to internal components. Cleaning or replacing filters regularly helps maintain smooth airflow, improves cooling, and extends the lifespan of the AC unit.

When should I call a technician for an AC blowing hot air?
If basic troubleshooting does not resolve the issue, it is best to call a technician. Seek professional help if you notice refrigerant leaks, unusual noises like buzzing or rattling, or frequent short cycling, where the AC turns on and off repeatedly. Electrical issues, a malfunctioning compressor, or a damaged thermostat may require expert intervention. Delaying repairs can worsen the problem, leading to higher repair costs and reduced AC efficiency. Regular servicing by a professional can help diagnose issues early and prevent major breakdowns.

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