Frozen evaporator coils might sound like something out of a freezer manual, but they’re a real headache for anyone with an aircon. When your unit starts icing up, your airflow drops, your room stays warm, and your electricity bill climbs like it’s on a hike. It’s a common issue that often leads to calls for aircon repair in Singapore. So, what causes this chilly situation, and what can you do about it?
Poor Airflow Puts the Freeze On
For your aircon to work well, warm air must pass over the evaporator coils to be cooled. When that airflow is blocked, the coils get too cold and start to freeze. Dirty filters, blocked vents, or a failing blower fan are usual suspects. Over time, a frozen coil can stop your aircon from working entirely. Regular maintenance helps prevent this. Many air conditioning repair services include filter cleaning and airflow checks as part of their servicing.
Low Refrigerant Levels Cause Ice to Build Up
Refrigerant is what absorbs heat from your room. If there’s not enough of it, the pressure in the system drops, and the evaporator coils get too cold. Ice starts to form, and the more it freezes, the less effective your cooling becomes. A low refrigerant level usually means there’s a leak somewhere. Getting it topped up without sealing the leak is like patching a boat with tape. A proper aircon repair in Singapore should include leak detection and sealing, followed by a refill to the correct level.
ALSO READ: Aircon Keeps Freezing Up? Here’s What You Need to Know to Fix It Fast
Coils Get Dirty and Lose Their Flow
Dust, mould, and grime reduce the coils’ ability to function properly, they trap cold and mess with the heat exchange process. This causes moisture to freeze on the coils instead of dripping off into the drain pan. Dirty coils often go unnoticed until ice shows up or your unit starts to struggle. Most air conditioning repair services in Singapore offer coil cleaning as part of a thorough service package.
Thermostat Trouble Throws the System Off
If your thermostat isn’t calibrated correctly or is giving faulty readings, your unit may run longer than it should. This can drive the coils to freeze. It’s a small component with a big job, and when it’s off, your whole system feels it. Fixing or replacing a faulty thermostat is a common job for aircon repair in Singapore. A quick check by a technician can save you from a bigger breakdown later.
Fan Problems Cause a Cold Build-Up
The fan inside your aircon helps push warm air over the coils. If it’s running slow or not at all, the airflow suffers. Less warm air means the coils can freeze. It’s not always obvious at first, but strange noises, low airflow, or uneven cooling can point to a faulty fan. Air conditioning repair services often carry replacement fans and can swap them out on the spot.
What Can You Do When Coils Freeze?
The first step is to turn off the unit and let the ice melt. Running it while frozen only strains the system. Check the filters and vents for dust or blockages. If the issue keeps coming back, it’s time to call in the professionals. Ignoring frozen coils can lead to water leaks, compressor failure, and worse.
Getting help early avoids expensive repairs later. Professional servicing not only fixes the frozen coils but checks the entire system. With Singapore’s heat and humidity, it’s worth scheduling regular servicing to keep your aircon running smoothly.
Stay Cool and Call for Help
Frozen coils aren’t rare, but they’re never welcome. From blocked filters to low refrigerant, the causes are often simple but not always easy to fix without tools or experience. If your aircon’s starting to look like a snow cone, it’s time to take action. Contact Newway Air Conditioning to book a service and bring the chill back to your room, not your aircon.
