If your aircon suddenly shuts off and the circuit breaker trips, it can be frustrating—especially in Singapore’s hot and humid climate. Not only does it stop your cooling, but it may also signal a deeper issue inside your system. Fortunately, many of these problems can be identified early and fixed before they become expensive repairs.
Below are the most common reasons why an aircon keeps tripping the circuit breaker and what you can do about it.
1. Dirty Air Filters
First, clogged air filters can restrict airflow. When airflow becomes weak, your aircon must work harder to cool the room. As a result, the system may draw more power and cause the breaker to trip.
How to fix it:
Clean your filters every two to three weeks. In addition, regular aircon servicing Singapore helps keep the system clean and efficient.
2. Frozen Evaporator Coils
Next, frozen coils can also lead to power trips. This usually happens when airflow is blocked or refrigerant levels are low. Because the system struggles to operate properly, it may overload the electrical circuit.
How to fix it:
Turn off the aircon and allow the ice to melt. Then schedule a professional aircon repair Singapore service to inspect the coils and airflow.
3. Low Refrigerant Levels
Another possible reason is low refrigerant gas. When the system lacks refrigerant, the compressor works harder than normal. Over time, this extra strain can trigger the circuit breaker.
How to fix it:
A technician can check for leaks and perform a proper aircon gas top-up Singapore service.
4. Faulty Capacitor
Meanwhile, a failing capacitor can cause electrical instability. The capacitor helps start the compressor and fan motor. If it weakens, the aircon may draw excessive current, which leads to breaker trips.
How to fix it:
Have a qualified aircon technician Singapore test and replace the capacitor if necessary.
5. Compressor Problems
The compressor is the heart of your aircon. However, if it overheats or becomes damaged, it can overload the circuit and shut the system down. This issue is more common in older units.
How to fix it:
Professional diagnosis is required. Sometimes repair works, but in severe cases, replacement may be recommended.
6. Electrical Wiring Issues
Loose wiring, damaged insulation, or faulty connections can also cause the breaker to trip. Because electrical faults pose safety risks, they should never be ignored.
How to fix it:
Call a licensed technician to inspect the wiring during routine aircon maintenance Singapore.
7. Overloaded Electrical Circuit
Finally, the problem might not be the aircon itself. If too many appliances share the same electrical circuit, the breaker may trip when your aircon runs.
How to fix it:
Reduce the load on that circuit or ask an electrician to install a dedicated line for your aircon.
When to Call a Professional
If your aircon keeps tripping the breaker repeatedly, it’s best to get expert help. Ignoring the issue can damage the compressor, increase electricity bills, or create electrical hazards.
A trusted aircon servicing Singapore provider can inspect the system, identify the root cause, and restore safe operation.
Reliable Aircon Servicing in Singapore
At Lion City Air Conditioner Services, we help homeowners solve aircon problems quickly and safely. Our experienced team provides:
Aircon servicing Singapore
Aircon repair and troubleshooting
Chemical wash and overhaul
Gas top-up and leak checks
We make sure your aircon runs smoothly, efficiently, and safely all year round.
📞 Call or WhatsApp: +65 8818 5781
🌐 Book online: https://lioncityaircon.sg
