5 main reasons why your aircon doesn't cool your house

5 Main Reasons Why your Aircon doesn’t Cool your House

Why my aircon is not cold? Aircon not Blowing Cold Air? Aircon not as cold as before?

Base on our 25 years of experience, the top reason often due to lack of regular servicing and maintenance.

Click here: Aircon Servicing During Circuit Breaker? 3 Things You Can Do Now

Billy Aircon Office

Billy Aircon offers air-conditioning servicing & repair at an affordable price with 25 years of experience. Here are the reasons why customers like us.

The customer service of Billy Aircon is outstanding. Their staff was really friendly and gave me the right information to book their service.read more
Lee Kins
Lee Kins
14:57 25 May 18
Mok from Billy Aircon did a very good job, he explained the details and chemical overhauled my blowers to brand new condition, he even make sure the gas is at the optimum pressure as well as the wind blown out is at the coolest condition.My Panasonic blowers are now running like new. , well done Billyaircon. Please keep up the good work.read more
Wish Vv
Wish Vv
04:31 06 Oct 18
Great service whatsapp response fast and their service crew very efficient and professional. Will definitely use their services again.read more
Jeremy Tan
Jeremy Tan
09:14 27 Dec 18
A truly professional aircon service company. They came in with expert knowledge and they left their make-shift repair area at home clean as a whistle. I was very happy with their service.read more
Zi Ling Lim
Zi Ling Lim
12:51 03 Jan 19
Punctual efficient n patience. Can wait to confirm air cond.run normally. I will continue to use his services in the future n share with others too. Thank u.read more
Ng Robett
Ng Robett
10:02 25 Jan 19
Happy with Billy Aircon Services, as usual. Their aircon specialists are really courteous and also care to explain what’s going on with our unit. We will book with them next time!read more
Dylan Christy
Dylan Christy
08:28 31 Jan 19
Fast response! Last minute booking and manage to get a timeslot in Saturday after negotiating with Chris. Thumbs up!
Tan J
Tan J
11:13 11 Feb 19
Easy to book and they went to our place on time! I think they also have some of the most updated tools I’ve seen so far.read more
Lim Sin Yie
Lim Sin Yie
06:25 05 Mar 19
Over the years, I have had multiple pleasant experiences with Billy’s aircon servicing and repair. My first experience with them was when the AC in my office broke down. They guided me about the most suitable AC repair option and did a commendable job. Afterwards, when I needed aircon servicing at my house, I knew just who to contact. Both times, Billy Aircon provided me with exceptional service and made sure I was completely satisfied.read more
Blank jihyo
Blank jihyo
12:42 26 Apr 19
Surviving the summers in Singapore is not an easy task especially if your air conditioner isn’t working properly. And of course, ACs require regular maintenance and servicing to keep them working optimally. With Billy’s aircon servicing and repair, I am always guaranteed top quality service from their team of qualified HVAC technicians. I will surely be contacting them again the next time I am looking for an air con service.read more
PuiWoon Chong
PuiWoon Chong
13:11 26 Apr 19
I really like this kind of service. Yesterday afternoon my ac suddenly cannot function. They set the earliest slot to me and reach my room on time. The technical team also professional and very friendly! Really a good service.read more
vaper_雪梨
vaper_雪梨
07:16 15 May 19
The team from Billy Aircon are one of the most punctual ones that we hired to date. They arrived on our expected time and were even so apologetic when it took them longer to fix my 6-year old aircon.read more
Xiao Chen Tseng
Xiao Chen Tseng
13:53 15 Jun 19
Thanks for the friendly service! And for the extra guide and tips you gave us foe taking care of our aircon. Will definitely book again.read more
Chao Yi
Chao Yi
08:01 26 Jun 19
I would like to give this company 5-star rating. The job is neatly done, and the men that went to our house were friendly. They also gave us guidelines on how to make our aircon last longer.read more
Robert Lim
Robert Lim
02:51 28 Jun 19
Cool team! And really updated gears. Thanks guys! Till next time.
Michael G
Michael G
08:52 08 Jul 19
I got an air conditioner installed nearly a year ago. It was working fine until about a week ago when I noticed that the AC wasn’t cooling at all. I contacted Billy’s Aircon Servicing and Repair to help me with this dilemma. Upon visiting and inspecting the AC at my place, they told me that I needed to top up the gas in the AC. I went ahead with their suggestion and soon after that, my AC has been as good as new!read more
Aziemah Hamdzah
Aziemah Hamdzah
10:45 05 Aug 19
Great service ever! After chemical overhaul service mine 3 unit of ac is really cool like new ac.Will engage again
Brendon Lai
Brendon Lai
06:20 08 Aug 19
Been using Billy Aircon services for aircon servicing (3 times) and chemical wash (2 times). Easy to book a slot by text, price is reasonable, staffs are punctual and nice! They know their thing and I do not need to worry at all. Any issues they will inform me and fix it on the spot. Will definitely continue to use their service and will introduce to friends and family!read more
Michelle Seo
Michelle Seo
03:32 31 Aug 19
I discovered this company whilst searching online for a transparent, fuss-free and responsive aircon maintenance service. I’ve since relied on their services for the past 2 years, and intend to continue to do so as they’ve demonstrated strong dedication to delivering their services as promised. Whilst I cannot deny their prices might possibly be on the higher side, their dedication in making sure your air con issues are fixed makes it justified. I highly recommend anyone who’s considering them to give the team a shot.read more
Exia-M
Exia-M
16:41 31 Aug 19
Reasonable price for such premium service. Fast, convenient, and skilled! Thanks a lot!
Woo Michael
Woo Michael
12:56 11 Sep 19
My first time engaging Billy Aircon. I have been reading lots of review before engaging them. When I got the call from their service technician on the condition of my aircon and what needed to be done, my first impression was there are out to get your money, instead I told them what I wanted to do. They Listened and complied. My hubby was around to witness the condition of the aircon and immediately change the initial decision. We have engaged a different vendor before, it has never been as thorough as the work done by Billy Aircon technicians. Can sense the passion of the technicians as they carried out their duties! Commendable. I have not regretted engaging them and will definitely recommends to my colleagues! Kudos and keep it up!read more
Yusnita Omar
Yusnita Omar
08:54 12 Sep 19
Reliable and excellent service. Came at appointed time and did a great job with readonanle rates. Thumbs up for a job done well👍👍read more
Catherine C
Catherine C
09:10 16 Sep 19
Fast to respond to service request and servicing date! The servicemen came promptly on both occasions in Apr and Sept! No hard selling of other additional services onsite and I will certainly return for regular air con servicing!read more
Brenda Cheong
Brenda Cheong
12:52 24 Sep 19
Was attended to be technician Brandon and he was really friendly and attentive. Usually servicemen don't speak English and therefore won't even try to communicate with you but Brandon tried and was patient with my questions throughout. Really appreciate the service.read more
CrookedBoy
CrookedBoy
04:36 28 Sep 19
Wasn't at home at the point of time when the servicing happened. Yet Ah Cong constantly provide me with the updates of the servicing and even went the extra mile to inform me when it is done. Definitely will go with Billy Aircon again for its services and reasonable pricing.read more
Chua Ian
Chua Ian
03:59 15 Oct 19
Brendon is friendly. He told us the cost of repair, $30 for servicing and $80 for chemical cleaning, for without dismantling, before commencing his work. He advised us to change an aircon blower's motherboard, as the sensor is damaged, at $280. We will consider that advice. When he finished his work, he does not leave a mess for us. We are thankful for that. He took about an hour to work on 2 units. Thank you, for your service.read more
Chiong Hoe Ng
Chiong Hoe Ng
09:02 26 Oct 19
Received great service from Brendon today! He’s honest and can provide good options to solve our current issue. Will definitely be engaging this company again.read more
Grape W.
Grape W.
06:09 30 Oct 19
The service was very smooth from start to end. Quotations were explain fully and broken down for your understanding before you make the decision. The rates were also very reasonable and affordable. That was the most important factor for me. Thank you Billy Aircon Service for the great service and will definitely recommend to my contacts who needs a fast, reliable and friendly aircon servicing team👍🏻read more
Ivan Tan
Ivan Tan
09:59 18 Nov 19
Very satisfied with technician Brendon professional and thorough in the cleaning process. Technician Brendon is very knowledgeable and diligent. Very happy with the service. This is the first time I'm using Billy aircon and highly recommend them. Price is reasonable too. Will definitely engage their service again. Well done! Appreciated again your service Brendonread more
Kent Yap
Kent Yap
03:31 22 Nov 19
They are very professional with their services, making sure of the cleanliness of the house when doing the cleaning. My airconds were noticeably much cooler after the servicing. Am very happy with the service!read more
Hong Wei Lim
Hong Wei Lim
02:02 02 Dec 19
Absolutely great service😊.I do not believe i have ever received such amazing customer service.your price is so fair.They are professional ,fast & friendly.Thank you for being & so good at what you do.read more
颜斯凯
颜斯凯
04:26 15 Dec 19
Second time engaging Billy Aircon for servicing my Mitsubishi Aircon and have to say that their service is tip-top. Very friendly Technicians who will take the effort to advise you on what is necessary and explaining in detail why they recommend certain service. Can be trusted on their professional judgment.read more
Daniel Ng
Daniel Ng
04:14 21 Dec 19
Our Aircons was in need of servicing and Billy Aircon were able to make it during the seasonal period (of Christmas). They came as per the agreed time period and were extremely helpful and friendly. I am so satisfied with their service that I have signed up for an annual contract. Highly recommended!read more
d3x labs
d3x labs
10:29 30 Dec 19
Technicians were very punctual and knowledgeable. Will recommend you what type of service is needed for your air-con condition. Will not try to anyhow sell you services that you do not need. Pricing is also very reasonable. Pricing is open and clear with no hidden charges. Will definitely recommend Billy Aircon servicing to my family & friends and will engage them again.read more
Richmond Tan
Richmond Tan
10:12 13 Jan 20
Very good service, request for servicing was told next day. Told them urgent because it’s baby room. They came within an hour. Amazing service, most importantly... there is no up selling, very honest.. used them twice and definitely will be calling them for any future servicingread more
Jayden Chan
Jayden Chan
12:17 13 Jan 20
Billy Aircon has been our company’s constant partner in maintaining our entire AC system. They have a dedicated team assigned to us, which we truly appreciate. Billy Aircon specialists are no doubt experienced and professional in handling their clients. More importantly, they honor appointments, so none of those nasty scheduling mix-up excuses that we had from others.read more
FOXX HUBERT
FOXX HUBERT
05:20 15 Mar 20
Quality service with reasonable price and one more added value is that you can arrange for servicing on Saturday without extra charges, which most of the servicing company did.They gave professional advices without hard selling any of the service package.They will send reminder to notify you that it's time to do servicing for the Aircon, when you sign up for annual contract. While one of the company that i engage before did not. They just let the contract expire without serving the service fully.read more
Juni
Juni
05:30 20 Feb 20
Great experience from booking to resolving my air con issue. I’m delighted with Billy Aircon following up on text message to remind me of my aircon servicing due date. It was easy to make an appointment; I needed to move it out once, they were polite to accommodate me even responding over the weekend. They turned up on time. During the site cleaning, the service team fixed an issue with one of my ac blowers having a ticking sound. They were patient and professional. I’d recommended them.read more
Timothy Chia
Timothy Chia
15:44 09 Mar 20
Took a while to find our house, but the specialist are very patient and apologetic! Kudos to wonderful and sincere service.read more
Patrick Tan
Patrick Tan
13:57 18 Sep 19
Job done with full responsible. Nice quality staffs . Highly recommend to my family and friends. Thanks technician Brendon teamread more
Xue Er Lai
Xue Er Lai
09:18 27 Feb 20
Billy Aircon has provided excellent service and advise. This is the 2nd time I have engage their services and I feel they professionally handled the issues and providing good advise.read more
William Wong
William Wong
06:50 20 Mar 20
I will definitely engage Billy Aircon again. Very professional and experienced. Breakdown of cost was explained clearly before conducting the cleaning. Mr Franky the contractor was very experienced. He did the overhaul cleaning of my 2units plus the condenser unit. Very neat in his work too. High recommend.read more
ZHIWEI TAY
ZHIWEI TAY
15:53 30 Mar 20
This is the second time we engaged Billy Aircon as we were so satisfied with the first servicing done.Frankie was very thorough and professional. He explained clearly what was wrong and what should be done. His product knowledge is also very good. He is also extremely efficient.Will definitely engage Billy Aircon again!read more
Ragina Abdullah
Ragina Abdullah
09:04 08 Apr 20
This is my first time engaging Billy Aircon servicing & repair. They are quick in replying your messages. Their technician, Danial, came to help me with my air-con problems. He quoted me based on the problem which the air-con had. Danial is really expert & experienced. I am very happy with the service they have provided. Now, my family can enjoy the cool breeze again. Surely will recommend Billy Aircon Servicing & Repair to my friends & others.read more
Naufal Baharudin
Naufal Baharudin
23:50 02 Apr 20
Very professional Aircon servicing company. We are very much satisfied with their services. Keep the good work going 👍.read more
Asha Mishra
Asha Mishra
09:11 27 May 20
Ken is punctual and professional. He checked the AC and recommended a hot steam cleaning. Love it that the air quality feels so clean without any lingering chemical odour.read more
Jamie L
Jamie L
14:14 03 Jun 20
A Very good service by billy Aircon.I’m the existing customer of billy Aircon since 2013.I’m very much satisfied with service provided so far.Highly recommend.read more
Chandrashekar Naik
Chandrashekar Naik
07:26 25 Mar 21
Brendon is a very professional technician. He solve my water leaking problem with chemical service. The arrangement is fast which impress me. Well-done Billy aircon and Brendonread more
Gilbert Phang
Gilbert Phang
06:13 26 May 21
It was so nice of you guys to come out and clean my air conditioning unit on the weekend! It's hard enough to get work done that day let alone find someone willing to do it. But you came right out even though it didn't fit into your normal schedule. That really means a lot in today's world. Thanks again!read more
Boas Chu
Boas Chu
02:20 31 Jul 21
Impressed by thorough and efficient service by a single staff that includes 2 chemical cleaning, one regular servicing and one top up under 2 hours. Highly recommended. Good job technician Brendonread more
Benson Benson
Benson Benson
05:38 18 Jul 21
They always provide the best aircon cleaning and repairing services. All work done well, near and tidy. Recommended to othersread more
Agnes Chan Zhi Ching
Agnes Chan Zhi Ching
14:38 14 Jul 21
If you're looking for a reliable and trustworthy aircon repair service in Singapore, then you can't go wrong with them. I've used their services on several occasions and have always been impressed with the quality of their work. They're always quick to respond to my requests, and they always take the time to explain everything clearly so that I understand what's going on. Their prices are also very reasonable, which is a huge plus.read more
Adrien Lee
Adrien Lee
06:18 27 Mar 22
I'm really glad for the service provided to us by Billy Aircon. The air con unit at home is now working properly after their thorough servicing and cleaning at very affordable prices. They are not only good on what they're doing, but also on making their clients happy.read more
Denise Dunigan
Denise Dunigan
06:12 14 Feb 22
Ever since I got this faulty air con unit, it has been nothing but trouble for me. I am so glad that Billy Aircon came to the rescue! They are not only good on what they're doing, but also on making their clients happy.read more
Ettie Haws
Ettie Haws
06:35 14 Feb 22
Easy to arrange and schedule. Cheapest and most competitive in the market.Service technician is friendly, on time and professional.read more
Yeo Yeow Leong
Yeo Yeow Leong
06:33 02 Jun 22
First time using Billy Aircon,they are very helpful and given us proper advise on the aircon units. Excellent
Catherine Ham
Catherine Ham
07:23 03 Jun 22
Wonderful experience despite first time engaging the service. No more leaking for my aircon!
Penny Lim
Penny Lim
06:45 09 Jun 22
Technicians came on time, polite. Looks like local or Malaysians, not foreign workers. Fast and efficient cleaning. 2 out of 3 air cons advised for chemical wash due to 1 year no prior servicing. Chemical wash seems abit too fast but aside from that, all seems ok. Technicians provided some advice on aircon maintenance before they left. Recommended & likely will engage again.read more
ruby luo
ruby luo
16:28 28 Apr 19
Billy AC has been very convenient to use. They are responsive on whatsapp and flexible with the sign up for long term plans.Servicing itself is good, they provide information about gas position and any damage to units as they service. Quite fast and efficient.read more
Kshitij Gopal
Kshitij Gopal
10:44 26 Aug 19
Worker always come the days mentioned and were always super polite. They managed to remind me of next appointments which was quite handy. Thank youread more
Hélène Vanderstraeten
Hélène Vanderstraeten
10:54 04 Sep 19
Convenient booking system and good air-con service from Billy Aircon Servicing & Repair Singapore. My air-con are now ways cooler than before compared to last time serviced by other vendor. Suggestion where Billy could provide some deluxe package which include chemical wash when necessary. Cheersread more
Nic Cheah
Nic Cheah
07:02 24 Sep 19
Good service. Easy to schedule. Responsive and courteous. Would be nice to have more account details and access to service history. Could also be more upfront with additional maintenance recommendations and pricing.read more
Steven Dockter
Steven Dockter
04:16 14 Oct 19
Booking through WhatsApp was easy and reply from the technician was prompt.Have used their services more than once. Inspection and servicing was performed efficiently and pricing quoted upfront before they proceed.Happy with the cold clean air after the service.read more
KK Phon
KK Phon
09:13 18 Nov 19
Price is slightly higher. After researching, about 10-20 bucks more. Service is great. Came on time and without delay and it's works wellread more
Addrun Me
Addrun Me
18:35 11 Dec 19
Prompt response, efficient scheduling. Their handyman was punctual as well. However, I wish that they were more transparent with the charging. The receipt had no breakdown/itemization, just an overall description. Although only 2 of the 6 spare parts were broken, the technician took the liberty of ‘disposing’ all 6.read more
J Loh
J Loh
05:53 22 Feb 20
Aircon servicing and cleaning jobs were done professionally. However there’s still room to improve in terms of cleanliness of the house after the servicing was done. Also room to improve on punctuality.read more
Hanns Loo
Hanns Loo
09:30 04 May 21
The servicemen were on time and get the job done with no fuss in 15 mins. I was expecting the cleaning to be more elaborate with cleaning the cooling unit. They explained that it wasn’t effective at all. The aircons seem to be working well. I’m overall satisfied with the service and have signed up for annual service.read more
Htin Kyaw
Htin Kyaw
12:16 12 May 21
So far have engaged their routine cleaning services. Very efficient and fast jobs. Cost is reasonable. Friendly staff. Paylah available. Convenient.read more
Chee Kuan Chew
Chee Kuan Chew
03:56 09 Jun 22

Let’s dive more into the detail of why your aircon is not cooling.

Quick Fact

For countries who have a tropical climate, an air-conditioning system is a must. The Asian continent has had the highest demand for these cooling systems over other continents even higher than the next closest region North America.

Many Asian countries like Singapore have a high demand for Room Air Conditioners. The all-day heat makes it necessary to have a running air conditioning system to provide cooling and comfort when doing activities inside.

Residential homes have an air conditioner running in every room to provide a good night’s sleep. It would get uncomfortable inside a concrete structure if your AC is not cooling efficiently. The following are the main reasons why your aircon is not releasing cold air.

Why is my air conditioner not cooling?

#1 Air Filter Clogging

All AC units have an air filter which you can see from outside. It catches the particles that comes with the air coming out of the unit. This part easily gets clogged because it acts like a trap for dust, pollen, and other particles in the air.

An air filter can disrupt the flow of air out of the air conditioner if it gets clogged. Most air filters, however, can be removed manually.

You can clean it yourself by running water through the screen and wiping it. Just make sure it’s dry before you place it back into the unit.

#2 Dirty Condenser Coils

Clogging inside a condenser coil is normal especially for an air conditioner that operates for long hours in a day. Debris can get stuck inside its tubes and coils which can make it less efficient in expanding heat from the compressor and refrigerant.

Dirt inside the coils makes it harder for it to cool the air passing through it.

The extreme build-up of debris will eventually stop the AC from reaching the desired temperature inside the room it’s cooling.

Always keep your condenser coils clean by aircon servicing expert to avoid overheating and damaging your air conditioning system.

#3 Busted Compressor

The large motor you hear inside your AC is most probably the compressor unit which is the part responsible for compressing air to deliver cool air to the room. An AC struggling to cool room might have a busted compressor.

When the motor is broken, the refrigerants and coolant won’t circulate inside the machine which keeps it from passing through the condenser coils and evaporating unit. Basically, a broken compressor means a broken cooling cycle.

Most repair jobs would require the full replacement of the compressor unit making it best to avoid allowing your compressor to break down.

#4 Defective Thermostat

Your AC’s thermostat is the sensor responsible for regulating the room temperature inside the room it’s cooling. It’s signals the start or stop of the cooling process until the desired temperature is reached. If it’s broken the AC won’t know if the cooling process if effective.

#5 Small Air conditioner

There are times when having a smaller air conditioning unit is the actual problem, not a defective part. Many homeowners encounter this problem because they just purchase a unit for their homes without thinking about its power and size to cool the room.

Room size will play a role in how efficiently an air conditioner will cool the room. Outside heat will keep the room from cooling your room effectively if your unit is undersized.

A professional aircon servicing Singapore technician will be able to determine the right air conditioner size for your room upon inspection. He/she will also be able to do repairs on defective AC parts that are causing your aircon not to cool your room/s effectively. We support various type of aircon brands including Panasonic, LG, Fujitsu, Toshiba, Mitsubishi and Daikin.

Call Us at  9456 0875 if you need our help

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Looking for DIY tips? Check out this video for more.

FAQ on Why is my AC Not Cold

Why my air conditioner is running but not cooling?

–  The common reasons for your AC not cooling are the filter or the need to top up the aircon gas. It causes the AC does not to have adequate airflow and the cooling process to fail to work correctly.

Why aircon not cold in one room?

– Aircon not cold in one room is due to the refrigerant or coolant not able to reach your indoor evaporator assembly. Your outdoor unit should be working fine and the aircon gas level is enough as other room’s aircon units are working fine. You can double-check the blower is working or turn off the power suite completely and restart it. If it still doesn’t work, it’s better to contact a professional aircon repair company to check for you.

How do you repair an aircon that is not cooling?

– It will depend on the cause of the issue. It is much better to call an AC repair service provider to properly diagnose the problem before starting the repair.

Can you fix aircon not cold problem with standard aircon servicing?

-It depends on the cause of the problem. Most of the time, a standard aircon service or a chemical wash and re-gassing can fix your issue.

How much is the cost to fix aircon not cold?

– It usually starts at $50 depends on the actual problem.

Should I turn off the air conditioner if it’s not cooling?

It’s entirely up to you. There are pros and cons to turning on or off the AC, but if your air conditioner is not cooling and it’s making sounds, that could be an example of something abnormal like a refrigerant leak.

If you turn on the AC when it doesn’t need to be turned on, more energy is being consumed because it has to work harder than it should have needed. However, if you leave the AC off during a heatwave, many repair issues related to rot in older units may never be addressed. The number one rule for anyone who wants their air conditioner well-maintained is that they take care of any maintenance themselves BEFORE they notice anything abnormal.

Why doesn’t my air conditioner cool at night?

The hot daytime heat simply doesn’t need to be cooled, so at night the cool air inside the house creates a situation where your AC can go through one of two cycles. The first cycle is that the indoor cooldown becomes warmer when your AC “rips” out some of that coolness, making it hotter within the house than outside.

The second cycle is where the indoor air becomes warm after cooling while outside is still cold enough to chill any output from a fanless AC unit (either single-split or dual-split), meaning it’ll just blow warm air in most cases.

Why choose Billy aircon?

– We have expert aircon technicians with over 25 years of experience in AC services. With this, we can assure you that our service is top-notched and of high quality.

Related read: 9 Most Popular Air Conditioner Problems & How To Deal With Them