Have you noticed a hissing sound coming from your aircon?
At first, it might not seem like a big deal. However, this noise is often a warning sign that something’s wrong — and it shouldn’t be ignored.
So, Why Is Your Aircon Hissing?
Here are the most common reasons:
1. Refrigerant (Gas) Leak
First and foremost, a hissing sound often means there’s a gas leak in your system. This is serious because it affects cooling performance and can increase your electricity bills.
2. Compressor Problems
If the hissing is loud and constant, your compressor might be under too much pressure — which can be dangerous if left unchecked.
3. Expansion Valve Noise
Next, sometimes the sound comes from the expansion valve, especially if it’s struggling to regulate pressure. While this might be less urgent, it still requires inspection.
4. Internal Valve Leak
In some cases, an internal valve might be faulty, causing air or refrigerant to escape. This could lead to system failure over time.
Is It Dangerous?
Yes, in some cases. A refrigerant leak not only damages your unit but can also be harmful to your health if inhaled in large amounts. Therefore, it’s best to get it checked immediately.
What Should You Do?
Don’t try to DIY this one. Instead, call a certified aircon technician who can:
Identify the exact source of the hissing
Repair or replace faulty parts
Safely refill the refrigerant, if needed
Call Lion City Aircon Today
Let the experts handle it.
📞 Call us at +65 8818 5781
🌐 Book now: lioncityaircon.sg
