https://www.artarmonair.com.au/blog daily 0.75 2025-12-10 https://www.artarmonair.com.au/blog/multi-split-air-conditioner-not-working-heres-what-to-try-first monthly 0.5 2025-12-02 https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/5c26e9ec-4047-4140-8085-8ecc664dbf64/Artarmon+Air+Conditioning Blog - Multi-Split Air Conditioner Not Working? Here's What to Try First - Why Multi-Split Systems Can Be Confusing Unlike regular split systems, multi-split air conditioners share a single outdoor unit between multiple indoor units. That means: The system can only operate in one mode at a time: either heating or cooling — not both. If one room is set to heat and another to cool, the system may become unresponsive or not work at all. You may see error codes or find that indoor units blow air that doesn’t match the selected mode. This issue is most common during seasonal changeovers, when people start switching between cooling and heating. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/72940e8c-b900-4443-a76a-4acc68f556a4/Artarmon+Air+Conditioning Blog - Multi-Split Air Conditioner Not Working? Here's What to Try First - Quick Reset: The Fan-Only Trick If your multi-split isn’t responding properly, try this first: Turn all indoor units to FAN ONLY mode. (This stops the system from trying to heat and cool at the same time.) Wait a few minutes for the outdoor unit to fully shut down. Set all indoor units to the desired mode — either heating or cooling — and select your preferred temperature. Turn the units back on one by one. Wait a few seconds between each unit to let the system register the change. This helps reset the communication between the indoor and outdoor units and can resolve a lot of issues without needing a technician. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/82010ce6-384f-4463-877c-e78a00acfe17/Artarmon+Air+Conditioning Blog - Multi-Split Air Conditioner Not Working? Here's What to Try First - Other Common Issues and Tips Mismatch in remote settings: Double-check that all units are set to the same mode (all heat or all cool). Even one unit set incorrectly can stop the system from operating. Filters need cleaning: Dirty filters can cause airflow issues, especially if only one indoor unit is struggling. Clean your filters regularly. Outdoor unit might be in defrost mode: If you're using heating and the outdoor unit appears to stop, it may just be cycling through defrost mode. This is normal during cold weather. Power cycle the system: Turn off the power to the system at the isolator switch or circuit breaker for 2–3 minutes, then turn it back on. This can clear minor faults or communication issues. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/2c098186-0379-42fe-844d-9f04d77f04a4/Artarmon+Air+Conditioning Blog - Multi-Split Air Conditioner Not Working? Here's What to Try First - When to Call Artarmon Air Conditioning If you’ve tried the reset steps and: Your units still aren’t blowing hot or cold air The outdoor unit doesn’t start at all You see flashing lights or error codes One or more indoor units won’t respond at all …it’s time to call in a professional. We’ll diagnose the system, check communication between units, inspect for faults, and make sure everything is working as it should. https://www.artarmonair.com.au/blog/7-simple-tips-to-stay-warm-and-cut-energy-bills-this-winter monthly 0.5 2025-12-02 https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/3fe1d140-fbd0-4975-8903-5e4a7bd71a3b/Air+Conditioning Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 1. Use Your Reverse Cycle AC Efficiently Your split or ducted air conditioner can be one of the most efficient ways to heat your home — if you use it correctly. Stick to a set temperature of 20–22°C. Every degree above that can add around 10% to your energy usage. Make sure your filters are clean, and if the system hasn’t been serviced in the past 1–2 years, now’s the time. ➡️ Need a winter service? Book in with Artarmon Air for a tune-up before your next cold snap. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/27317ef7-adcf-49b7-8268-e1ca830b77e4/Artarmon+Air+Conditioning Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 2. Seal Up Drafts Around Doors and Windows Even the best heating system struggles if warm air is escaping. Check for gaps under doors, around window frames, and in older floorboards. A $10 door snake can save you a lot more in heating costs. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/40722f98-9a6a-43f8-a2f2-d9d561c775d9/Air+Conditioning Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 3. Make the Most of Natural Sunlight Open curtains and blinds during the day to let the winter sun heat your home naturally. Then close them as soon as it gets dark to trap that warmth in. Heavy curtains are especially helpful for insulating against heat loss. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/e59ec321-6c75-4904-a6f2-5e09cd8dd114/Air+Conditioning Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 4. Zone Off Rooms You’re Not Using If you have a ducted system with zoning, only heat the rooms you’re using. If your system doesn’t have zoning, consider closing doors to unused areas to prevent heat from spreading where it’s not needed. ➡️ We install smart zoning systems like AirTouch that give you complete control over which rooms are heated — with potential savings to match. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/75dd032d-b147-4ee6-bb22-26ad00cfef22/Air+Conditioning+Sydney Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 5. Use Floor Rugs on Tiled or Timber Floors Uncovered floors draw heat away from your home. A rug adds insulation, keeps your feet warm, and reduces the amount of energy your system needs to maintain a comfortable temperature. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/0cd40535-7ad3-4a5e-bf3a-23b289f37c82/Air+Conditioning Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 6. Check if Your Filters Are Clean Dirty filters restrict airflow and make your system work harder — costing you more and delivering less heat. If you haven’t cleaned them in a while, now’s the time. Just pop the cover open and give the filters a rinse with warm water and let them dry fully before reinstalling. Not sure what you're looking at? That’s where we come in. If you’re unsure or haven’t checked them in over a year, it’s best to get the big dogs in and have it professionally serviced. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/e6502a78-b824-4935-baa7-d6e787598180/Air+Conditioning Blog - 7 Simple Tips to Stay Warm and Cut Energy Bills This Winter - 7. Book a Professional System Check If your heating feels underwhelming, noisy, or slow to respond — or if your energy bills have suddenly spiked without any major changes at home — it’s probably time for a proper service. Even if your system is still running, it might not be running well. A professional service from Artarmon Air can uncover issues like: Dirty coils or filters restricting airflow Failing or worn-out components Incorrect setpoint or sensor configurations Poorly balanced zones or airflow inefficiencies We’ll test your system, clean what needs cleaning, and make sure it’s running as efficiently and safely as it should — helping you stay warm and keep your power bills under control. https://www.artarmonair.com.au/blog/why-your-ducted-air-conditioner-might-not-be-working-as-it-should monthly 0.5 2025-12-02 https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/40514cfd-0fa1-4577-b3de-0024c2e3b16f/AdobeStock_533152630.jpeg Blog - Why Your Ducted Air Conditioner Might Not Be Working as It Should - What Is a Setpoint? A setpoint is the temperature you ask your system to maintain — usually set via your wall controller. If you set it to 22°C, the system runs until it senses that this temperature has been reached. But the system can only respond based on where that temperature is being measured — and that’s where things often go wrong. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/6fdfdcfe-6176-4338-9bae-a6e5b1eb6d12/AdobeStock_553458788.jpeg Blog - Why Your Ducted Air Conditioner Might Not Be Working as It Should - Where Is Temperature Measured? Most ducted systems measure temperature from either: The wall controller, or A sensor located in the return air grille In many homes, the return air is installed in a central hallway — and that hallway typically doesn’t have any nearby supply vents. It’s a dead zone for airflow, and it tends to stay warmer in summer and cooler in winter compared to the rooms you’re actually using. That means the system may run for far too long trying to hit a target temperature in a space that isn’t being directly heated or cooled. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/c11135dc-041f-4407-b89b-7bd54adc26f2/AdobeStock_308789321.jpeg Blog - Why Your Ducted Air Conditioner Might Not Be Working as It Should - Why It Matters When your air conditioner is measuring from the wrong place, the result is poor comfort — and high running costs. Rooms feel too hot or cold despite the system running The system runs longer than necessary, spiking your power bills You constantly adjust the controller to try to fix it — but it never quite works Your system wears out faster from overuse https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/649a60c0-89e4-4602-a600-a75414de36f8/AdobeStock_192931181.jpeg Blog - Why Your Ducted Air Conditioner Might Not Be Working as It Should - What Needs to Be Done Unfortunately, setpoint and zoning issues aren’t something homeowners can resolve themselves. To fix it properly, Artarmon Air Conditioning needs to inspect your system and assess what options are available based on your setup and controller. Depending on the system, we may be able to: Reconfigure the system to use a more accurate temperature sensor (e.g. at the controller instead of the return air) Install a remote temperature sensor in a key room like your lounge or bedroom Upgrade your controller to something more advanced Install a smart zoning system like AirTouch, which gives you full room-by-room control, better temperature sensing, scheduling, and app-based control We’ll walk you through the options and only recommend solutions that are genuinely worthwhile based on how your home is laid out and how you use your system. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/3b45b4b0-3426-4811-84a4-5f56ab66afa2/AdobeStock_546879932.jpeg Blog - Why Your Ducted Air Conditioner Might Not Be Working as It Should Ducted air conditioning should be efficient, quiet, and comfortable — but if your system doesn’t seem to be keeping up, it might not be the unit itself that’s the issue. It could be the way it’s reading and responding to temperature — and that’s something that can be fixed. At Artarmon Air Conditioning, we’re here to get your system working properly — not just ticking boxes. Whether it’s relocating a sensor, reconfiguring airflow, or installing an AirTouch system for smarter zoning, we’ll give you honest advice and long-term solutions. Want your ducted AC to actually work the way it should? Book a diagnostic visit and let us take a proper look. https://www.artarmonair.com.au/blog/how-to-maintain-and-care-for-your-split-system-air-conditioner monthly 0.5 2025-05-21 https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/60d50212-51f5-42cd-9f0e-b1405b058ccd/AdobeStock_640120339.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 1. Clean the Filters Clogged filters are the most common cause of reduced airflow and poor performance. Open the front cover of the indoor unit, remove the filters, rinse them under warm water, and allow them to dry completely before refitting. This should be done every 1–3 months depending on usage and environment (e.g. pets, dust, or allergies). If you're unsure how to do this, here's a short Daikin video guide on how to clean your split system filters — the process is similar across most brands. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/b0984b86-9e55-4707-9376-cc5c176a131e/AdobeStock_316866974.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 2. Wipe Down the Indoor Unit Dust can build up on the top and front of the indoor unit. Wipe it down gently with a damp cloth — no need for sprays or harsh cleaners. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/2b59baa3-27fc-439a-bd0d-3ec2de3ce925/AdobeStock_336004202.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 3. Spray Glen 20 on the Coil (Optional) Behind the filters is the indoor coil (the thin metal fins). You can give this area a light spray with Glen 20 or a similar antibacterial spray, then run the unit on cooling mode for 10–15 minutes to help rinse it through. This helps keep odours at bay. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/3ac6374b-e2ca-4e09-bcae-1084e1ee5bc4/IMG_2925.jpg Blog - How to Maintain and Care for Your Split System Air Conditioner - 4. Inspect the Fan Barrel With the system off, shine a torch up through the vents to check the fan barrel. If there’s noticeable dust or grime, this can reduce airflow and may eventually lead to noise or balance issues. If it looks dirty, give us a call — deep cleaning requires removing the casing and should be done by a professional. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/61acb484-e937-4978-aa87-528682e6a30b/AdobeStock_386108074.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 5. Check the Outdoor Unit Important: Only carry out this inspection if it’s safe to do so — for example, if the outdoor unit is at ground level and easily accessible. If the unit is located in a difficult-to-reach area (e.g. on a roof, wall bracket, or narrow side access), it’s best to forgo this step or contact a professional. Wipe the exterior: Clear dust, cobwebs, and debris from the top and front. Inspect the fins: If the metal fins behind the unit are clogged with lint, dirt, or garden matter, this can affect performance. Avoid poking them — just take note and give us a call if they're blocked or damaged. Clear the surrounds: Trim back plants and ensure nothing is crowding the unit. It needs good airflow to function properly — at least 300mm clearance is ideal. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/44d340e5-a087-4ffb-b178-6e873b158333/AdobeStock_66868652.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 6. If Something Goes Wrong: Error Codes & Resets Most modern split systems will throw up an error code on the indoor unit or controller display if there’s a fault. Occasionally, this can be a software glitch — turning the power off at the switchboard for 10 minutes can reset the unit. If the code comes back after a reset, give us a call and we’ll investigate further. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/efab2fed-822f-444f-b6f1-94504ac3f798/AdobeStock_458171258+%281%29.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 7. Watch Out for Summer Water Leaks If you skip professional servicing, the main issue to keep an eye on is water leaking from the indoor unit in cooling mode. This usually happens due to: Blocked drain line: Dirt or mould buildup from humid air can clog the drain. Poor drain design: Some systems have undersized drain pipes or awkward drain runs that don’t fall properly, especially if installed on the cheap. Lack of maintenance: If the filters and coil stay dirty, the system draws in more dust and debris, which ends up in the drain tray. If you see water leaking or dripping inside during summer, switch the unit off and give us a call. https://images.squarespace-cdn.com/content/v1/651548ba5ec54b2baf91868a/0e3c6a18-9d37-41dc-b3de-84a5e83a910c/AdobeStock_207220651.jpeg Blog - How to Maintain and Care for Your Split System Air Conditioner - 8. Do You Really Need Professional Maintenance? In our view — not always. If you're proactive with cleaning, keep the surrounds clear, and the unit’s working fine, there's usually no urgent need for a service. That said, if: The unit isn’t cooling/heating properly after cleaning the filters You hear unusual noises There’s visible rust or corrosion Water leaks occur indoors You see an error code that doesn’t clear with a reset You are unsure of the last service date of the unit …it’s time to get someone in. https://www.artarmonair.com.au/blog/why-is-my-air-conditioner-leaking-water monthly 0.5 2025-01-19 https://www.artarmonair.com.au/blog/common-air-conditioning-problems-when-to-call-a-pro monthly 0.5 2025-01-14 https://www.artarmonair.com.au/blog/category/Tips+and+guides+for+keeping+AC+systems+in+top+condition. monthly 0.5 https://www.artarmonair.com.au/blog/tag/Blocked+air+filters monthly 0.5 https://www.artarmonair.com.au/blog/tag/Air+conditioning+maintenance monthly 0.5 https://www.artarmonair.com.au/blog/tag/AC+water+leak monthly 0.5 https://www.artarmonair.com.au/blog/tag/air+conditioning+troubleshooting monthly 0.5 https://www.artarmonair.com.au/blog/tag/AC+repairs+Sydney monthly 0.5 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