Verify the Thermostat and Settings
The first step in troubleshooting your AC during an emergency is to check the thermostat settings. Ensure that it is set to “cool” and that the temperature setting is lower than the current room temperature. Sometimes, incorrect thermostat settings can lead to the AC not functioning as expected. If the thermostat has batteries, check if they need replacement, as this simple fix can sometimes resolve the issue and restore cold airflow.
Inspect and Replace the Air Filter
A common cause of AC malfunction is a dirty or clogged air filter. A dirty filter restricts airflow, reducing the efficiency of your AC system and potentially causing it to overheat or freeze up. Inspect the air filter and replace it if it appears dirty or clogged. Most air filters require replacement every 1-3 months, depending on usage, the environment, and the type of filter. For example, the experts at manufacturers Carrier recommend the following air filter replacement schedule:
- Fiberglass filter: replace every 30 days.
- Polyester / pleated filters: replace every 3-to-12 months
- Washable air filters are safe to clean and return to the vent.
Regularly changing the air filter improves indoor air quality but also helps maintain the efficiency and longevity of your AC unit, potentially saving you thousands of dollars in AC repair and maintenance work over the coming years.
Check the Circuit Breakers
If your AC suddenly stops working, it could be due to a tripped circuit breaker. Check your electrical panel and look for any breakers labeled for the AC unit. Sometimes, breakers can trip due to electrical surges or overloads. If you find a tripped breaker, switch it off and back on again to reset it. If the breaker continues to trip, it could indicate a more serious electrical issue, such as damaged wiring or an AC component issue, and you should contact a professional HVAC technician for assistance.
Inspect the Outdoor Unit
The outdoor unit of your AC system, known as the condenser unit, is instrumental in cooling your home. Inspect the unit for any visible signs of damage or obstruction. Outdoor units can become clogged with leaves, dirt, or other debris, hindering airflow and causing the AC to work inefficiently or stop altogether. Clear away any debris around the unit and ensure it has at least 2 feet of clearance for proper airflow. Additionally, check if the fan blades are spinning freely and if the unit is making any unusual noises, as these could indicate mechanical issues that require professional attention.
Listen for Unusual Noises
If your AC is making unusual noises such as grinding, squealing, or banging or issues with the compressor, fan motor, or other internal components of the AC unit. If you hear such noises, turn off the AC immediately to prevent further damage and avoid potential safety hazards. Continuing to run the AC when it’s making strange noises can lead to costly repairs or even premature breakdown. Contact a qualified HVAC technician to diagnose and repair the issue promptly.
Check for Leaks or Water Damage
Pooling water near your AC unit can indicate several potential issues, including a refrigerant leak, a clogged condensate drain, or improper installation. If you notice water pooling around the indoor or outdoor AC unit, turn off the system immediately to prevent further damage to your home and contact a professional technician for assistance. Refrigerant leaks are particularly concerning as they not only impact the cooling efficiency of your AC but can also pose health risks to occupants and environmental concerns. Only a certified HVAC technician should handle refrigerant-related repairs due to the specialized knowledge and equipment required.
Avoid DIY Fixes Beyond Basic Maintenance
While it’s tempting to attempt DIY air conditioning repairs to save money, complex issues require the assistance of trained professionals. HVAC systems are complex and require specialized knowledge and tools for proper diagnosis and repair. Attempting DIY repairs beyond basic maintenance tasks, such as changing filters or clearing debris, can void warranties, cause further damage, and pose safety risks. It’s always best to contact a licensed HVAC technician with the expertise to safely and efficiently repair your AC system.
Call a Professional Technician
If basic troubleshooting steps do not resolve the issue with your AC, or if the problem seems severe (such as no cold air whatsoever), it’s time to call in a professional HVAC technician.
HVAC technicians train regularly to diagnose and repair numerous AC issues in new and legacy air conditioning equipment, from electrical problems to mechanical failures and refrigerant leaks. They have the necessary knowledge, experience, and specialized tools to identify the root cause of the problem and implement effective solutions.
When choosing a technician, look for a licensed and insured HVAC company with a good reputation and positive customer reviews. Promptly scheduling professional repairs can minimize downtime and ensure your home remains comfortable during hot weather.
How to Stay Cool While You Wait for AC Repairs
While waiting for professional air conditioning repairs, there are several steps you can take to stay comfortable.
- Use fans to circulate air throughout your home
- Close curtains or blinds to block out sunlight and reduce heat gain
- Stay hydrated by drinking plenty of water.
- Avoid using appliances that generate heat, such as ovens or dryers, during the hottest part of the day to prevent additional strain on your AC system.
- Open the windows at night to allow cooler air to flow throughout the home
Once your AC repair is complete, consider scheduling regular maintenance to prevent future emergencies and extend the lifespan of your HVAC system. Professional maintenance helps identify and address potential issues before they escalate into costly repairs or system failures.
Call Lew Plumbing & Heating for 24/7 Air Conditioning Services
Dealing with an AC emergency promptly and precisely requires decades of knowledge in systems performance. Our air conditioning repair team trains regularly with the latest air conditioning systems from Carrier, Trane, and other leading North American manufacturers. We’re here to answer your questions and provide AC repair call-out services throughout Vancouver, Burnaby, Coquitlam, New Westminster, and the surrounding Lower Mainland communities. Request your AC service today by calling Lew Plumbing & Heating at 604-205-9436.
