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Troubleshooting Your Air Conditioning Unit
October 25th, 2022
Your heating and cooling unit is essential for keeping your home comfortable all year round. However, there might be times when your AC runs into trouble and breaks down. At such times, it helps if you know what you’re dealing with so you can diagnose the problem and even do some DIY troubleshooting. At the very least, understanding what’s wrong with your air conditioner can result in faster repairs when you call the professionals.
As the experts in air conditioning in Melbourne, our team has put together a few tips on troubleshooting your air conditioning unit to get it back to its best.
Read on to find out what might be wrong with your air conditioner.
Fixing an Air Conditioner That Won’t Turn On
There’s nothing worse than an air conditioner that fails to start in the height of summer! Fortunately, there is sometimes a simple solution to an air conditioner that won’t switch on. Here are a few things you can try to reverse this apparent equipment failure.
Press the on/off button on the remote a few times to make sure it’s not working
If your system has an on/off button or control panel on the indoor unit, you can also try this
If your AC only has controls on the remote, check the remote batteries
If your AC unit has any external power cords, make sure they are plugged in and turned on
Check to see if there has been a full/partial power outage to your property or a blown fuse
Check the timer settings to make sure your system isn’t automatically set to be switched off
You can also try switching the power to your property off and on again
If all of the relevant points above fail, call a professional to examine your system.
Troubleshooting an AC That Is Blowing Out Air That Is Too Cold/Too Hot
Is your air conditioning blowing out hot air when it’s meant to be cold? Maybe it’s blowing out cold air when it’s meant to be hot.
In some cases, air con units may blow out hot, cold, or room temperature air when they’re first turned on before quickly switching to the right temperature. It’s best to give the system a moment before assuming that something is wrong.
If your system is still at the wrong temperature, make sure the thermostat is set properly. Sometimes, a problem is solved in the simplest way, and fixing your AC may require little more than making sure the temperature setting is to your liking. It’s easy to forget to switch between your heating mode and cooling mode when the seasons change. And even if your system is in the right mode, the thermostat temperature setting may just be too low or too high.
Troubleshooting Air Conditioner Remote Control Problems
Problems with air conditioner controllers are some of the most common issues for AC owners. Fortunately, it’s often easy to solve these problems yourself.
Here are some troubleshooting tips to fix your AC remote:
If your remote is not working, you can try resetting it: The exact method for resetting your remote will depend on your model. Common methods include holding down the power button for a few seconds or using a pin to access and press a small reset button. Refer to your owner’s manual or search online to find out how to reset your air conditioner remote.
Changing the batteries solves many air conditioner remote issues: If your AC remote isn’t working or it only works sometimes, low batteries may be the problem. Slide off the back of your remote and change the batteries to fix the issue. A faded remote controller display or a display that doesn’t show up at all may also be fixed by changing the batteries.
What to do when you’ve lost your air conditioner remote: Certain air conditioning systems can be powered on by pressing a button on the indoor unit. This will usually activate your air conditioner’s automatic mode. You can also use your wall-mounted controller if you have one. If you have a Wi-Fi-controlled air conditioner, you can pair your phone with the system to access full controls. This will require you to download the relevant app. If you cannot find the AC remote, you will need to purchase a new one from the manufacturer or an approved retailer.
How to Fix an Air Conditioner Unit with No Airflow or Weak Airflow?
There are several reasons why your air conditioning may not be blowing out any air. Some of these are easy to solve yourself while others will require professional assistance.
Here are a few troubleshooting tips:
Replace air filters: Air won’t flow or circulate properly if your air filters are too dirty. Modern air conditioners are more particular about dirty air filters, meaning they may require more regular care. Make sure to clean your dirty filters regularly and change them when necessary. If you can’t remember the last time you changed the filters, that’s probably a sign to give them some attention.
Check for obstructions: If you have a central air conditioning system, you need to make sure the air outlets are open and aren’t being blocked by furniture or other items. Obstructing even one outlet can affect the way air is distributed throughout your home.
Check your zoning settings: If your ducted air conditioning has zoning settings, check your zones to make sure the lack of airflow isn’t due to a particular zone being switched off.
Check the sensors: Many modern split system air conditioners have sensors that detect when people are in the room. You can’t fix a sensor problem yourself, but you may be able to identify if a sensor is to blame. Try moving closer to your unit and moving in different directions to see if this affects the airflow. If it does, a sensor may be responsible for your issue.
Close the windows and doors: Refrigerated air conditioners require you to have windows and doors closed during operation so they can effectively cool (or heat) your home. If doors and windows are left open, this can cause a range of issues, including weak airflow.
If you can’t solve your airflow issues on your own, the experts at Australian Climate Systems are here to help.
5 Reasons to Avoid DIY Air Conditioner Repairs
Troubleshooting the problems with your air conditioner is one thing, but attempting DIY repairs is a bad idea. Here are 5 reasons to leave heating and cooling repairs to the professionals:
1. DIY repairs will void your manufacturer’s warranty
2. It is illegal for unqualified individuals to perform repairs on air conditioning systems
3. Working on your AC puts your health and safety at risk! Working with these systems may expose you to health hazards such as potentially toxic fumes, refrigerant leaks, pressurised gases, live electrical connections, and other health hazards
4. Unqualified repairs may provide a “Band-Aid solution” that ultimately compromises the efficiency of your system, leading to higher running costs, bigger energy bills, and a shorter shelf life for your air conditioner
5. Attempting to repair the system yourself could lead to more serious breakdowns and even more expensive repairs in the future.
When You Should Call the Professionals
As we just mentioned, fixing the more complicated components of your air conditioner is not something you should do on your own.
Your indoor unit is leaking: A major leak could be a sign of a refrigerant issue, a water leak, or another serious problem. Turn off your air conditioner and call a professional heating and cooling technician to check for low refrigerant levels and related issues.
Your system is suddenly making abnormal sounds: If your air conditioner makes any noise that is sudden, abnormal, and persistent, it will require an expert inspection to identify the problem. Strange noises can be a sign of a serious problem such as issues with the fan motor, or they may be minor in nature.
Your air conditioner is emitting foul smells: Just like with noises, you should call an expert if your air conditioner is suddenly emitting foul odours and the problem is persistent. Unpleasant smells such as burning smells/electricity smells or any odour accompanied by a discharge are particularly worrying and should be looked at ASAP.
Your electricity keeps tripping the circuit breaker: If your power keeps going out when you try to turn on the system, this is an electrical issue. An AC that keeps tripping a safety switch needs to be looked at by an air conditioning technician, and possibly a qualified electrician.
Your zone controls are malfunctioning: If your zoning controls don’t seem to be working, call a professional for advice.
Your air conditioner won’t turn off: An AC that won’t switch off is an uncommon problem. If it’s not just a case of controller batteries that need replacing, then the issue could be something serious like an electrical short, a thermostat error, or a problem with your refrigerant levels.
Your system is displaying an error code: AC error codes are usually a combination of letters or numbers that represent a corresponding fault with your air conditioning system. The best thing you can do is report this error code to your repair technician so they know exactly what they’re dealing with.
When Your Air Conditioner Symptoms Might Not Be a Problem
In some cases, what might seem like a problem with your air conditioner can turn out to be a normal part of the operation that you haven’t noticed before.
Steam or water around the outdoor unit: A little bit of water or steam can sometimes just be the result of condensation. If you notice excess water around your outdoor unit or the moisture build-up seems to cause other problems, that’s when you should be worried.
My air conditioner automatically switches itself off: The ultimate goal of your air conditioner is to reach and maintain your target temperature. When your target temperature is reached, your system may appear to power down or switch its settings. This is perfectly normal. If your system is switching itself on and off too frequently and it doesn’t seem to be maintaining the target temperature, this could be short cycling. When short cycling persists, call a qualified technician for services and repairs.
Certain noises and smells are normal for air conditioners: Momentary clicking, rattling, buzzing, rumbling, or hissing may just be the fans, louvres, drain hoses, and other parts of the system at work. Sometimes, extreme temperatures or humidity can also trigger temporary noises. Similarly, smells that dissipate shortly after your system turns on may be nothing to worry about, and they might even be your system cleaning itself. If smells become more frequent or noises become louder, or new odours and abnormal sounds emerge, this might be a sign that you need repairs or maintenance. It is recommended to book preventative air conditioning services and maintenance every 2-3 yearsto keep your system at its best and avoid abnormal sounds and smells.
We’ve Got You Covered Here at Australian Climate Systems!
So far so good. I was exploring a commercial engagement to look after many systems in a business. Alex has been very thorough and polite to deal with.One appointment was delayed as a technician was unwell, this happens, it was rebooked within 24 hours. Great outcome.I booked a domestic repair this week and the technician Bruno was again excellent. He did a great job, explaining everything. We felt heard, looked after and informed. He spoke highly of the company and seemed to enjoy his job.I was impressed by Alex and Bruno. Will send more work to ACS.
Frank Van Den Boom
Helpful honest advice from the outset. Excellent communication from start to finish. Quality job. Very satisfied.
We had a Brivis Buffalo ducted heating system installed by Australian Climate Systems in April 2023. All aspects of the relationship were pleasant and efficient from initial advice to installation
HelloYes found. Australian climate SystemsVery good and efficient . Take my hat of to the salesman very professional and knew what he was talking aboutYes very happy
Great company to deal with. Punctual efficient and friendly technicians
We’ve had our system 7yrs and from week 2 it had an issue where it just wouldn’t turn on. Every year we had another group come out and “repair” our system, this year it happened again and I decided to use Australian Climate Systems based off their google reviews and thank God as they were reliable, on time and well priced, they even found the faulty item that was causing the issue since the beginning! I will defs use them again as should you!
Great company and cervices. Front desk very professional and communication seamless. Technician on the filled very competent ; helpful and highly skilled. Very happy that I become customer five years ago.Guys keep up with good work.
Excellent service all round from Aust Climate Systems. The systems were correctly specified and installed. Performance has been up to expectations.
Today i had my ducted heater serviced by two men who did a excellent job very nice to talk too . job well done . Very happy with their service thank you.
Great service and advice from Alex and the team. Everything went ahead as planned and the install was able to be moved forward. No fuss, very professional and friendly, highly recommended.
We have used ACS for a few years now, on both our heating & cooling. We have found their work & service to be terrific, their work is excellent and the pricing is value for money. We have no hesitation at all in recommending them.
Great team. Fast, efficient and courteous. Our install was done in such a professional manner. Can’t be happier.
We were part way through a renovation when we realised we had forgotten to organise the aircon. The team here were really great in responding quickly to fit with our construction schedule and work with our builders to get the job done. Happy customer here!
We recently got two Split systems installed through Australian Climate Systems. The whole process from quoting to post installation checks were done in a seamless, efficient and professional manner. The staff were friendly and very helpful. We got the quote on Monday and the installation was completed by Thursday of the same week.There was very good communication all the way through. Very pleased with the outcomes. We would highly recommend the team.
True professionals from the time you make the call to the time the service techs have finished the job. Thanks for the great service team.
At the risk of this sounding like Ann’s from two months ago, I too dealt with Felicity in the office and Dan in Sales. Found them both very helpful, professional & respectful in that Dan kept in continued communication with me to ensure all boxes were ticked.
Fabulous company to deal with, exceptional service! The communication between me, sales and office staff was seamless. The technicians did a great job installing our split system air con. They were helpful , on time time and left the area spotless. Such a joy to deal with professionals! Highly recommend.
Was referred to ACS by a friend - 100% would recommend as well! Dan came by to take a look at my issue. I had two others give me quotes as well. One had said it wasn't possible to fix and therefore needed a whole revamp, the other gave an outrageous quote.Dan and ACS had no idea why I was told this by others and said a) it's definitely doable and b) gave me a very competitive quote. He was also very personable and actually spent time having a chat with me, which was lovely!Nick and his team came to install a new heating system and service the cooling. They were super professional, efficient, tidy and cleaned up afterwards. The area was a tight space, but they managed to make it work and kept me informed of what was happening the whole time.Thanks ACS team! You guys are awesome! Would definitely recommend to anyone who needs heating and cooling sorted!
Gas heater and under floor ducts replacement. Excellent service from beginning to end from all involved. Thank you to Jason and the office staff. Also thank you to Bruno and Angus for the installation side of it. They were all polite, patient and helpful. No hesitation in recommending.
More than happy with overall experience. Detailed competitive quote. Good communication. On time with all of the booked in days and times. Worked with us to remedy any concerns we had. Thanks to Jason in particular. Would work with ACS again without question.
Great service and very happy with the unit installed.
Agree with all the 5-star reviews. The installers were terrific and did a great job, and were happy to talk to us and show us how to use the new system. Our house is now so nice and warm! Everything was done on-time and no fuss.Used ACS services again to replace a heater at a rental property just a few weeks before Christmas. That I am a repeat customer confirms my confidence in this company. Once again, prompt and courteous service. And despite the tenants cancelling an installation date and having to re-schedule, this was no problem for ACS. New heater was installed and all is good!Update Aug 2022: just had an A/C installed (my third use of this company). I didn't bother going anywhere else. No problems and no issues.