If you notice your outside aircon unit not turning on, it’s time to apply a few tricks. In Singapore, an air conditioner is a must-have in most homes. It keeps the air cool and helps you stay comfortable in the heat. But sometimes, the outside unit of your air conditioner suddenly stops working.
This can be stressful, especially on a hot day. The outside unit is critical. It helps remove the hot air from your home. If it does not turn on, the whole system stops cooling. There are a few simple checks you can do before calling a technician. This article explains what to do if your outside aircon unit not turning on.
Why Isn’t My Outside Aircon Unit Turning On in Singapore?
An aircon unit is the lifeline in the hot and humid summer in Singapore. If the aircon unit suddenly stops cooling the space, there is an issue with your air conditioning unit. If you see your outside air conditioning unit not turning on, it is likely time to do the following:
1. Check the Power Supply
As soon as you notice your outside Aircon unit not turning on, you need to check the electrical power. Sometimes, the unit does not get power due to a tripped breaker. Go to your main power box and check if the switch for the air conditioner is off. If it is, turn it back on. You should also check the socket or power point if your unit uses one. Make sure the plug is in place and the power is on.
2. Look at the Thermostat Settings
The thermostat tells the air con when to turn on. If the setting is not correct, the outside unit will not start properly. Make sure the temperature is set lower than the room temperature. Also, check that the mode is set to “cool” and not “fan.” If the batteries in your remote or thermostat are weak, replace them immediately so that it responds appropriately.
3. Inspect the Air Filter
A dirty air filter can block airflow. This can make the system shut down and work poorly. Take out the filter and check it properly. If it is dusty or blocked, clean or replace it. A clean filter is the key to improving air flow and keeping the system running smoothly.
4. Examine the Outdoor Unit
Sometimes, the outside unit is blocked by leaves, dust, and other things. Check around the unit to see if anything is stopping the airflow. Remove the plants, boxes, and rubbish near the unit. Also, look for signs of any visible issues on the outer unit of your aircond. These may be signs of bigger problems.
5. Check the Condenser Fan
The outside unit has a fan. This fan releases hot air that has travelled from inside the room. If it is not spinning, there is a problem. Turn off the power before you check it. Try spinning the fan blades gently with a stick. If they do not move, the motor has likely developed an issue. If they spin freely but do not turn on, it could be an issue with the capacitor.
In that case, you will need help from a technician like LS Aircon Servicing Singapore, who is an expert at aircon repair, aircon chemical washing, general servicing, and aircon relocation.
6. Look at the Disconnect Switch
Most outdoor units have a safety switch known as a disconnect switch. It is usually in a small box near the unit. Make sure it is on. Sometimes, it gets turned off by mistake. If it is off, the unit will not start at all.
7. Listen for Strange Sounds
When the outside unit tries to start, listen closely. If you hear a click but the fan does not spin, it is certainly a capacitor issue. If there is no sound at all, the problem could be electrical. In both cases, it is best to call a technician. They have tools to check what is wrong and how to correct it appropriately.
8. Call a Trusted Technician
If you have checked everything and the unit still does not turn on, it is time to get help. Some problems need special tools and training to fix. A trained technician like LS Aircon Servicing can check the compressor, wiring, and other parts safely. They can also tell you if a part needs to be replaced. Trying to fix these problems yourself can be dangerous.
Conclusion
When you feel the outside aircon unit not turning on, the problem can be an electrical connection or blocked airflow across the unit. However, in many cases, the fix is simple. By checking the above-mentioned things one by one, you can solve the problem without stress. But if the unit still does not work, do not delay. Hire a trusted technician for professional assistance.


