During the scorching days of summer, your air conditioning unit is likely your best friend, providing you with the cool, refreshing air you need to stay comfortable. But what happens if, in the midst of a brutal heatwave, your AC unit suddenly stops working? It’s a stressful situation that can feel overwhelming, especially when the temperatures soar to unbearable heights. Fortunately, there are several steps you can take to troubleshoot and manage the situation before calling in a professional repair technician. Here’s a guide on what to do if your air conditioning unit breaks down during a heatwave.
1. Stay Calm and Assess the Situation
The first step is to remain calm. While it’s easy to panic when the heat intensifies, staying calm will allow you to think clearly and avoid making rash decisions. Take a few moments to assess your environment. Is the temperature in your home rising rapidly? Is the air conditioning unit making any unusual sounds, or is it completely silent?
If you notice anything out of the ordinary, such as strange noises or leaks, this could indicate a specific problem, which may help you diagnose the issue.
2. Check the Thermostat
The first thing to check is the thermostat. Sometimes, the problem isn’t with the AC unit itself but with the settings on the thermostat. Ensure the thermostat is set to the “cool” mode, and make sure the temperature is set to a level lower than the current room temperature. If you have a digital thermostat, ensure the batteries aren’t dead.
In some cases, thermostats can lose calibration or become disconnected. If you’ve had any power outages recently, this may be the reason your system isn’t working. Adjusting or resetting your thermostat might get the air conditioning system running again.
3. Inspect the Circuit Breaker
If your air conditioner isn’t turning on, there’s a chance that a tripped breaker is the culprit. Electrical issues can occur when there’s an overload in the system, or the unit may have simply reached its limit. Head to your electrical panel and locate the circuit breaker for the AC unit. If it’s tripped, switch it back to the “on” position. If the breaker trips again, this could indicate an electrical problem, and you should stop attempting to reset it and call an electrician for further assistance.
4. Check the Air Filter
Clogged or dirty air filters are one of the most common reasons for AC failure, especially during periods of heavy use like a heatwave. Air filters trap dust, dirt, and debris, but over time, they can become so clogged that they restrict airflow, causing the system to freeze up or overheat.
To check the air filter, turn off the AC and remove the filter from the unit. If it’s visibly dirty or clogged, replace it with a new one. Air filters are typically inexpensive and easy to replace, and doing so could get your system back up and running.
5. Inspect the Condenser Unit
The condenser unit is the large outdoor component of your air conditioning system that releases heat. If this part becomes blocked or obstructed by debris, such as leaves, dirt, or branches, it can prevent the system from functioning properly.
Take a moment to inspect the area around the condenser unit. Clear away any debris, and ensure the unit has enough space around it for air to circulate freely. Once the area is clear, turn the system back on and check if it starts cooling again.
6. Check for Ice Buildup
In hot weather, your air conditioning system can sometimes freeze up, particularly if there is a problem with the airflow. When the airflow is restricted (for example, by a clogged filter), the evaporator coils inside the unit can freeze, causing the entire system to shut down.
If you notice ice on the coils or in the air handler, it’s a clear indication of a freeze-up. Turn the unit off and allow it to thaw out completely. This can take several hours, so you might want to turn on fans or open windows to keep the air circulating in the meantime. Once thawed, replace the air filter (if needed) and check the airflow to ensure the system works properly.
7. Ensure Proper Drainage
Air conditioning systems also produce condensation as they cool the air. If the drainage system is clogged or blocked, the excess moisture can cause the unit to shut down or malfunction.
Locate the condensate drain line and check for any obstructions. If it’s clogged, you can attempt to clear it with a wet/dry vacuum or a small plumbing snake. Be cautious when handling the drain line, as you don’t want to cause damage to the system. If you’re unable to clear the line, you may need to call a professional.
8. Look for Leaks
Another potential cause for an AC malfunction is refrigerant leaks. If there’s insufficient refrigerant, the system won’t be able to cool your home properly. Refrigerant leaks are a serious issue that should only be handled by a licensed professional.
While you can’t fix a refrigerant leak yourself, there are signs to look out for, including a lack of cool air or strange hissing sounds. If you suspect a refrigerant leak, it’s best to call in a technician who can assess the problem and recharge your system.
9. Keep Your Home Cool While You Wait for Help
If you’re unable to get your air conditioning system working right away, you’ll need to find ways to stay cool in the meantime. Here are a few quick tips:
- Close blinds or curtains: Blocking out the sun can prevent your home from heating up further.
- Use fans: Fans can circulate air and make the environment feel cooler. If you have a ceiling fan, turn it on to help cool the room.
- Stay hydrated: Drink plenty of water to help your body regulate its temperature.
- Create cross-ventilation: Open windows on opposite sides of the house to let air flow through.
- Use ice or cool compresses: If the temperature is unbearable, try using a cold compress or a bowl of ice in front of a fan to cool the air.
10. Call a Professional
If you’ve gone through the troubleshooting steps above and your air conditioning unit is still not working, it’s time to call in a professional HVAC technician. They have the experience and tools needed to diagnose and fix complex issues, including refrigerant leaks, compressor failures, or electrical problems.
When scheduling a repair, be sure to mention that the issue occurred during a heatwave. This could help prioritize your case, as AC systems can be under additional stress during extreme temperatures.
Final Thoughts
A broken air conditioning unit during a heatwave is undeniably stressful, but by following these steps, you can address the issue quickly and avoid becoming too uncomfortable. From checking the thermostat to calling a technician, knowing what to do in the event of an AC failure can help you get your home cool and comfortable again in no time.
In the meantime, stay calm, stay hydrated, and stay cool. Your air conditioner will likely be up and running again before you know it! If you’re facing recurring issues, consider scheduling aircon servicing Paya Lebar to ensure your unit is properly maintained and running efficiently. Regular servicing can help prevent unexpected breakdowns and keep your home comfortable year-round.
