Is your AC making a strange Makes Hissing Noise When Turned on? It’s not a welcome sound. Let’s find out why.
What Causes the AC Makes Hissing Noise When Turned on?
A hissing noise in your AC can mean many things. Let us look at common causes.
- Refrigerant Leaks. This is the most common cause. Your AC uses a substance to cool the air called refrigerant. If this leaks, it makes a hissing noise.
- High Internal Pressure. Inside your AC, high pressure can build up. It may cause a hissing sound.
- Compressor Issues. The compressor pumps the refrigerant. If it struggles, it may start to hiss.
- Expansion Valve Issues. The valve lets refrigerant flow. If it has issues, it can lead to a hiss.
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Understanding Refrigerant Leaks
If your AC leaks refrigerant, it’s bad news. The table below helps us understand why.
| Signs of Leak | Consequences | Solutions |
|---|---|---|
| Hissing noise | Less cooling power | Seal leak, refill refrigerant |
| Oil stains near AC | Can harm the environment | Fix the leak, clean the area |
| Warm air from AC | Higher energy bills | Check for leaks, repair needed |
Diagnosing High Internal Pressure
High pressure inside your AC is tricky. Seek professional help for this.
When the Compressor is to Blame
The compressor is like your AC’s heart. If it fails, the AC won’t work well. It needs a pro’s touch.
Trouble with the Expansion Valve
The expansion valve controls the refrigerant. Your AC will sputter and hiss if this fails.
How to Troubleshoot the AC Makes Hissing Noise When Turned on
Here are steps to deal with this noise.
- Listen carefully. Find where the noise is. This will help fix it faster.
- Turn off the AC. Safety comes first. Always turn it off before checking.
- Call a pro. If you’re not sure what to do, a skilled technician can help.
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Do’s and Don’ts
Some tips can help. Here is a list of what to do and not to do.
- Do check for leaks. It’s a common issue and fairly easy to spot.
- Do seek professional help. They know what to do and will fix it right.
- Don’t ignore the noise. It won’t go away on its own. It can get worse.
- Don’t try fixing it yourself. You may cause more harm than good. Be careful.
Final Thoughts
A hissing noise from your AC can be troubling. But now you have the power to act.
Remember, safety is key. Always get help from a technician if you’re unsure. Good luck!
Frequently Asked Questions For Ac Makes Hissing Noise When Turned On
What Causes Ac Hissing Sounds?
The hissing noises from an AC typically indicate refrigerant leaks or high internal pressure within the compressor. It’s essential to inspect and repair promptly to prevent further damage.
Is A Hissing Air Conditioner Dangerous?
A hissing sound may suggest a refrigerant leak, which can be harmful. Refrigerant exposure poses health risks and could harm the environment if not addressed quickly.
How To Fix Hissing Ac At Home?
DIY fixes for a hissing AC are not recommended due to the complexity and potential hazards involved. Instead, call a certified HVAC technician to safely diagnose and resolve the issue.
Can A Hissing Ac Lead To Bigger Problems?
Ignoring a hissing AC can result in reduced efficiency, increased energy costs, and potential compressor failure, leading to more significant, costlier problems down the road.