Why Is My Aircon Not Cooling? Common Causes and How to Fix It

In Singapore, where temperatures and humidity levels stay high year-round, a well-functioning aircon is essential. But what happens when your aircon is not cooling as it should? This is a common problem that can be caused by several factors, ranging from clogged filters to low refrigerant levels.

In this article, we’ll break down the most likely reasons for an aircon not cooling and how Urban Company’s FoamJet Aircon Servicing can help solve the issue. Plus, we’ll share tips on the importance of regular Singapore aircon maintenance to keep your unit running smoothly all year round.

Why Is My Aircon Not Cooling?

1. Clogged Air Filters

Over time, your aircon’s filters can become clogged with dust, dirt, and other particles. This reduces airflow and forces the aircon to work harder, resulting in weak or no cooling.

Solution: Clean or replace the air filters regularly. For the best performance, schedule aircon servicing in Singapore every 3–6 months to keep your filters clean and improve air quality.

2. Dirty Evaporator Coils

The evaporator coils absorb heat from the air. When these coils are covered in dirt and grime, they can’t absorb heat effectively, which results in poor cooling.

Solution: Urban Company’s FoamJet Aircon Servicing thoroughly cleans both the front and back of the evaporator coil, where dirt and debris usually get trapped. This ensures better cooling and reduces the chances of needing a chemical overhaul in the future.

3. Low Refrigerant Levels

Refrigerant is the cooling agent that absorbs and releases heat. If your aircon is low on refrigerant due to a leak, it won’t cool properly.

Signs of Low Refrigerant:

• Air isn’t as cold as it used to be
• Hissing or bubbling sounds
• Ice on the evaporator coil

Solution: Contact a professional technician to check for leaks and recharge the refrigerant. This isn’t a DIY job—it requires specialized equipment and expertise.

4. Blocked Condenser Unit

The condenser unit, located outside your home, releases heat absorbed by the refrigerant. If it’s blocked by leaves, dirt, or other debris, it won’t function effectively, reducing your aircon’s cooling capacity.

Solution: Keep the area around the condenser clear. During Singapore aircon maintenance, technicians will clean the condenser to ensure optimal performance.

5. Thermostat Malfunction

A faulty thermostat may not read the temperature correctly, causing your aircon to stop cooling at the wrong time.

Solution: Check the thermostat settings. If it’s not working, replace the batteries or call a professional to inspect and repair it.

6. Compressor Failure

The compressor is the heart of the aircon system, circulating refrigerant and helping with heat exchange. If it fails, your aircon won’t cool at all.Solution: A faulty compressor usually requires professional repair or replacement. Regular maintenance can help catch issues before they become serious.

How Urban Company Can Help with Aircon Not Cooling

If your aircon isn’t cooling, Urban Company’s professional FoamJet aircon servicing can diagnose and fix the problem quickly. Our trained technicians offer different types of aircon services tailored to your needs:

1. General Aircon Servicing

• For regular maintenance (recommended every 3–6 months)
• Cleans air filters, front of evaporator coils, and drainage systems
• Prevents common issues like water leakage and reduced airflow

2. FoamJet Servicing

• Deep cleaning for both the front and back of the evaporator coil
• Removes stubborn dirt and grime that general cleaning misses
• Prevents the need for chemical overhauls, ensuring long-term cooling performance

3. Chemical Overhaul (When Necessary)

• For severely clogged units with heavy mold or rust buildup
• Full dismantling and cleaning of key components using chemical solutions
• Recommended only as a last resort

Why Regular Singapore Aircon Maintenance is Key

Regular maintenance is the best way to avoid cooling problems and expensive repairs. Here’s why:

• Improves Cooling Efficiency: Clean aircon components allow for better airflow and faster cooling.
• Extends the Lifespan of Your Aircon: Proper maintenance prevents long-term damage and reduces wear and tear.
• Lowers Energy Bills: A well-maintained aircon consumes less energy.
• Ensures Healthier Air: Regular cleaning removes dust, mold, and bacteria, improving indoor air quality.

We recommend scheduling aircon servicing in Singapore every 3–6 months, especially if you use your aircon frequently. This keeps your unit in top condition and prevents unexpected breakdowns.

Urban Company offers reliable, high-quality aircon servicing and repairs that ensures your aircon stays cool and comfortable all year round. Whether you need FoamJet aircon servicing , chemical overhaul or a more intensive repair, we’ve got you covered.Book your foamjet aircon servicing in Singapore today and experience the Urban Company difference!