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  • Writer's picture338 Aircon

Evaluating Your Aircon Unit Servicing Needs

A faulty and inefficient aircon unit needs attention unless you want your energy bills to rise. It might be challenging to determine, however, if the system truly requires professional help.

Here are six signs that indicate your central aircon unit needs some tender loving care and to also help you decide to have it done as soon as possible:

1) Output air is not cold

The leading cause of the lack of crisp air production is a defective air compressor or low refrigerant levels. If your aircon unit is low on freon, that generally means you have a leak in your system and one of our trained service experts should take a look with special tools to find your issue.

You might notice that your surroundings are still not cold, even if your aircon unit is on full blast. When this happens, an aircon repair is imminent. After all, why use a machine that doesn’t even do its job correctly and running it will only consume electricity.

Knowing the root cause lets you decide the next course of action, whether to repair it or buy a new aircon unit completely.

2) Airflow from the outlet vent is poor

When the volume of air exiting the vent of your aircon unit is low, the unit’s compressor is often the root of the problem. However, if only certain areas are getting cold, it could indicate a problem with the home’s ductwork, such as leakage or improper duct sizing. If you experience either of these two issues, contact a professional aircon servicing company for help.

3) Problems with temperature accuracy

There are times when the cooling function of your aircon unit works fine, but the accuracy of the temperature is a bit off. Even when the set temperature is set to a certain number, it could be offset by around 3-5 degrees. In this scenario, the thermostats are often the problem and you should immediately have them checked for recalibration or replace them entirely.

4) There is too much moisture

Moisture inside your windows and leakage are good indicators of an inevitable aircon unit repair. There are two likely scenarios for leakage:

a) First, the leaking liquid could be a toxic refrigerant. The chemicals are hazardous to your family’s health and must be repaired right away.

b) Second, floor water disposal drains might be blocked or broken, which causes the overflow of moisture.

Water leakage is not necessarily an urgent aircon issue, but it still needs to be addressed to prevent rusting of parts and mold growth. Also, having an aircon tune-up will prevent this 90% of the time.

5) You hear strange noises

When you hear some squealing, grating, or grinding noises coming from your aircon unit, immediately arrange to have your aircon unit to be serviced right away. Those noises imply a more deep-rooted and unseen problem inside.

The strange noises could mean several things. Sometimes, it’s a single belt that manages to slip out of place, or an equipment piece needs more lubrication. In rare cases, it could indicate that the bearing of your motor is damaged and needs repairs.

6) There are foul odors

When you smell an unfamiliar and ghastly pungent smell coming from your aircon unit, it makes sense to suspect burnt wire insulation. In some cases, it could be mold growth inside your ducts. If this is so, it’s vital to have your system cleaned out as soon as possible as mold spores are hazardous to human health.

Perfect aircon units that sadly don’t require repairs are yet to be invented. Until the day that magnificent invention emerges, homeowners need to know how to determine if their systems need repairs. This keeps the problem from escalating further and leaves you with repair costs ballooning into unthinkable numbers.


It’s always a good time to talk about the common issues that aircon units have. This way, you’ll be able to spot if there are problems with your unit or not and prepare for its replacement accordingly. If you require our aircon servicing services, Whatsapp us at +65 9222 4141 for a fast and transparent quote.

338 Aircon Servicing Singapore provides an extensive range of Aircon Services including Aircon Servicing, Aircon Repairs, Aircon Installation of the best aircon brands, Chemical Overhaul, Gas Top-up, Aircon Leaking Water, and Aircon Not Cold Fix, and more. We have a team of professional technicians who are equipped with vast knowledge and experience in the Aircon industry.

We have over 15 years of experience in dealing with aircon works and have completed thousands of aircon works for both residential (Landed, Condo, and HDB) and commercial. We are a highly recommended Aircon Company in Singapore, with many delighted customers and reviews over the years on Google and Facebook.

WhatsApp us at +65 9222 4141 for a transparent quotation and honest pricing for all your aircon needs or Call us at +65 9222 4141. We offer a fast and efficient service to serve any of your aircon needs!


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