Common Air Conditioning Problems and How to Troubleshoot Them

Dec 12, 2023


During the hot summer months, air conditioning is a lifesaver. It keeps us cool and comfortable when the temperatures soar outside. However, like any other appliance, air conditioners can encounter problems from time to time. In this blog post, we will discuss some common air conditioning problems and provide troubleshooting tips to help you resolve them.

1. Air conditioner not turning on

If your air conditioner doesn't turn on at all, it could be due to a variety of reasons. First, check if the unit is receiving power by ensuring that it is plugged in properly and that the circuit breaker hasn't tripped. If there are no issues with the power supply, the problem could lie with the thermostat or the control board. Consider replacing the batteries in the thermostat or calling us at Seabreeze Air Conditioning so we can inspect and repair the control board.

Business air conditioner in the office

2. Insufficient cooling

If your air conditioner is running but not providing enough cooling, there could be a few potential causes. One common reason is a dirty or clogged air filter. Check the filter and clean or replace it if necessary. Another possibility is that the refrigerant levels are low. In this case, it's best to call us so we can assess the issue, recharge the refrigerant and fix any leaks that may be causing the problem.

Air conditioner service and maintenance: Indoors unit

3. Uneven cooling

If certain areas of your home are cooler than others, it could indicate an issue with the air distribution system. Check the air vents to ensure they are open and not blocked by furniture or other obstructions. Additionally, make sure the dampers in the ductwork are properly adjusted. If the problem persists, it may be worth considering a zoning system that allows you to control the temperature in different areas of your home independently.

4. Strange noises

If your air conditioner is making unusual noises such as rattling, squealing, or banging, it could be a sign of a mechanical problem. Loose or damaged components, such as fan blades or belts, can cause these noises. Turn off the unit and inspect it for any visible signs of damage. If you're unable to identify the source of the noise, it's best to call us at Seabreeze Air Conditioning to avoid further damage.

a black background with a blue wave of light

5. Leaking water

Finding water pooling around your air conditioner can be concerning. It usually indicates a problem with the condensate drain line or the condensate pump. Check if the drain line is clogged and clear any debris that may be blocking it. If the issue persists, the condensate pump may need to be repaired or replaced. It's important to address this problem promptly to prevent water damage to your home.

6. Constant cycling

If your air conditioner frequently turns on and off, it may be short cycling. This can be caused by a variety of issues, including a dirty air filter, a malfunctioning thermostat, or an oversized unit. Start by checking and cleaning the air filter. If that doesn't solve the problem, give us a call so we can visit your property and diagnose the underlying issue.

Air conditioner being switched on by controller

7. Foul odours

If your air conditioner emits unpleasant odours, it could be due to mold or mildew growth within the unit. Clean the evaporator coils and the condensate drain pan to remove any buildup. You can use a mixture of water and vinegar or a mild detergent for cleaning. If the odour persists, it's advisable to contact us immediately to assess and address the issue.


By troubleshooting common air conditioning problems, you can potentially save money on repairs and ensure that your unit operates efficiently throughout the summer. However, if you're unsure about any aspect of troubleshooting or if the problem persists, it's always best to seek professional help. Give us a call!

Regular maintenance and servicing can also prevent many of these issues from occurring in the first place, so don't forget to schedule routine check-ups for your air conditioning system.

Head to our Contact Us page to send us a message today!