Now we’re finally in the midst of the great Kiwi summer, more people than ever before are turning to their air conditioners to combat the intense heat of strong sunlight streaming into their living rooms, or for some much-needed comfort in their bedrooms at night. With the hottest days of summer still to come however , it pays to ensure that air conditioning systems are ready to deliver cool, refreshing air when needed most. While basic checks are able to be undertaken by most homeowners, there are some critical ones that are best left to professional servicing technicians. Neglecting this can lead to indoor water leaks, inefficient operation, unexpected breakdowns and costly repairs. This article explores why servicing your air conditioner before summer is a good idea, perhaps even more so than before winter.
Understanding the Condensation Process in Air Conditioners
The main reason why summer is a crucial time to have an air conditioner serviced is because of condensation and the risks posed by blocked condensate lines. We aren’t talking about a few drops of water here either : air conditioners working at full speed on a hot, humid summer’s day can generate up to 7.5 litres or more of water every day and can cause considerable damage if it is not draining correctly.
Is condensate water toxic?
Although the water isn’t poisonous or dangerous in itself, it does contain trace elements and chemicals and is therefore considered as “grey water” which needs to be filtered and treated before being consumed by humans or animals.
Where does condensate water come from?
Air conditioners work by cooling warm air as it passes over the evaporator coil. During this process, moisture in the air condenses on the coil, much like dew forming on a cold glass on a warm day. This moisture collects in the condensate tray and, when everything is working as it should, drains away through a system of condensate lines. The condensation process is essential for dehumidifying indoor air and the water generated is a natural byproduct of an air conditioner working as it should.
While this process is the way air conditioners have been designed to operate, the system only works if the moisture collected is properly managed. When condensate lines are clear and functional, there is sufficient gravity fall and there are no kinks or holes in the piping, water drains away seamlessly. However, when any of these conditions are not met, it can lead to water leaks and potentially other even more serious problems such as damage to art, carpets, hard-to-replace wallpaper and also expensive televisions and other electronic equipment underneath.
Water leaks and how to prevent them from happening
It all starts at the installation stage, where the installer has the responsibility to make sure the condensate line is correctly positioned, with no sharp bends, pinch points and most-importantly, sufficient fall so that gravity can do its work and let the water drain out cleanly and effectively. Next comes the use of quality materials and installation methods : using plumber’s glue on all PVC joints and connections to ensure they stay tightly fastened and waterproof for years to come. If using flexi drain, its whole length should be carefully inspected as sometimes tiny holes and cracks can develop during the manufacturing process and cause leaks deep inside a wall cavity.
Consideration must be given to where the water is exiting the house as well, with a connection to a drain preferred since unwanted water dripping onto a concrete path can cause it to stain and get slippery should algae begin to form. Even drains onto soil need to be carefully examined as if the soil is not loose, clay can trap the water and cause significant ponding - we know of a soil basement that turned into a mini swimming pool after a long, hot summer because below the top surface, the soil underneath was clay which trapped the water instead of allowing us to drain harmlessly away.
After the installation is complete, one of the key tests is to pour a good quantity of water through the condensate system and see if it all drains out cleanly, with no backflow or obstructions.
Ongoing checks and maintenance
As small pipes around 20-25mm that carry the water as well as dust and dirt collected during the condensation process, these lines can become clogged with the solid matter accumulating over time. When this happens, the water starts reversing up the pipe and with nowhere else to go, can back up into the indoor unit and leak into your home. In some cases, pests like rats have been known to chew at the plastic and cause water to leak.
Common issues caused by blocked condensate lines include:
Internal Leaks: Water backing up into the unit can cause internal components to malfunction. In severe cases, water may leak into your walls or ceilings, leading to costly repairs.
Reduced Efficiency: Blockages force the system to work harder, increasing energy consumption and reducing cooling efficiency.
Sludge buildup Growth: Standing water in blocked lines creates an ideal environment for mould and bacteria, leading to a beige, jelly-like substance that builds up inside the lower part of the pipe.
Other issues:
Pipe integrity Leaks: While the best installations use rigid, air conditioning-grade PVC piping, some installations require a drain pipe that is thinner or flexible in nature. It is this latter piping where problems most often occur. Firstly, as the walls of this plastic are soft and flexible, the pipe can get pinched or kinked easily when squashed in between two hard surfaces
Outside water is not draining properly. Drain outside
Water backing up into the unit can cause internal components to corrode or malfunction. In severe cases, water may leak into your walls or ceilings, leading to costly repairs.
Signs Your Air Conditioner May Need Servicing
While some issues may not be immediately noticeable, there are clear signs that your air conditioner requires servicing. Watch out for:
Water dripping from the Indoor the Unit: This indicates that the condensate line may be blocked or leaking.
Musty Odors: Mould or mildew in the system often follows an undetected water leak behind furniture etc with unpleasant smells being the only indicator.
Decreased Cooling Performance: If your unit isn’t cooling as effectively as it used to, it’s time to check for underlying issues, typically insufficient refrigerant gas.
Higher Energy Bills: Reduced efficiency due to blockages or other problems can lead to increased energy consumption.
Unusual Noises: Gurgling or dripping sounds may indicate water flow issues within the unit.
What Professional Air Conditioner Servicing Involves
Professional servicing ensures your air conditioner operates efficiently and reliably throughout the summer. A comprehensive air conditioning service typically includes:
Inspection and Clearing of Condensate Lines: Technicians check for blockages and clear any debris to ensure proper drainage.
Cleaning the Evaporator and Condenser Coils: Dust and grime buildup on the coils can reduce efficiency and cooling capacity and are cleaned with specific HVAC cleaning liquids.
Checking Refrigerant Levels: Correct refrigerant levels are essential for optimal cooling performance and are vital for the health of your system.
Inspecting Electrical Components: Loose connections, pest infiltrations or worn-out parts are identified and repaired before more serious system damage can occur.
Testing System Performance: The overall system is tested to ensure all components are working.
DIY Maintenance Tips for Homeowners
While professional servicing is crucial, there are simple maintenance tasks homeowners can perform to keep their air conditioners in good shape:
Clean or Replace Air Filters: Dirty filters reduce airflow and strain the system. Clean or replace them every 1-2 months during peak usage.
Inspect the Outdoor Unit: Clear debris, such as leaves or dirt, around the outdoor unit to maintain proper airflow.
Check for Visible Damage: Look for signs of wear or damage, such as rust or loose components.
Test the Thermostat: Ensure the thermostat is functioning correctly and set to the desired temperature.
While these tasks can help maintain your system, more complex tasks, such as cleaning condensate lines or checking refrigerant levels, should be left to professionals.
Benefits of Servicing Before Summer
Servicing your air conditioner before summer offers numerous benefits, including:
Improved Cooling Efficiency: A well-maintained system cools your home more effectively, providing better comfort during hot days.
Lower Energy Bills: Efficient operation reduces energy consumption, saving you money.
Prevention of Breakdowns: Proactive maintenance identifies and resolves issues before they lead to system failures.
Extended Lifespan: Regular servicing helps your air conditioner last longer by preventing wear and tear.
Enhanced Indoor Air Quality: Clean filters and components improve air quality, reducing allergens and pollutants in your home.
Climate-Specific Considerations in New Zealand
New Zealand’s unique climate presents specific challenges for air conditioner maintenance. High humidity levels, especially in northern regions, can exacerbate condensation and increase the likelihood of mold growth in blocked condensate lines. Coastal areas may experience salt corrosion, requiring extra attention to outdoor units. Regular servicing ensures these climate-specific issues are addressed, keeping your system running smoothly.
Is Your Air Conditioner Ready for Summer?
Now summer is here, ensuring your air conditioner is ready to handle the heat is crucial for comfort and peace of mind. Understanding the role of condensation and the risks posed by blocked condensate lines highlights the importance of regular servicing. By addressing potential issues early, you can avoid costly repairs, enhance cooling efficiency, and enjoy comfortable indoor temperatures this summer, no matter how hot things get outside.
Don’t wait for problems to arise—schedule your air conditioner servicing today and ensure your home stays cool and comfortable all summer long. Contact us today to schedule a summer maintenance check and enjoy a stress-free cooling experience.