Have you ever turned on your tankless water heater and been startled by a loud noise that sounds just like a jet engine? If your water heater is making strange, roaring sounds, it can be more than just annoying—it might be signaling a problem that needs your attention.
You rely on your water heater every day for hot water, so understanding why it’s making these noises is important. Keep reading to discover what’s causing that jet-engine sound and what you can do to fix it before it turns into a bigger issue.
Page Contents
Common Noise Issues
Tankless water heaters often make noises during operation. Some sounds are normal, while others may indicate issues. Understanding common noise problems helps you know when to take action. This section explains typical sounds and when noise becomes a concern.
Typical Sounds Of Tankless Heaters
Tankless heaters produce humming or clicking sounds during startup. These noises come from the ignition and water flow. A soft whooshing sound is normal as gas burns to heat water. Some popping or ticking may occur due to thermal expansion. These sounds are usually quiet and not disturbing.
When Noise Becomes A Problem
Loud roaring or jet engine-like sounds are signs of trouble. These noises may mean scale buildup inside the unit. Water pressure issues can cause banging or knocking sounds. A high-pitched squeal often points to a failing pump. Persistent loud noises can damage the heater and waste energy. Professional inspection is needed if unusual sounds persist.
Credit: thefurnaceoutlet.com
Causes Of Jet Engine Noise
The loud noise from a tankless water heater can be surprising. It might sound like a jet engine roaring nearby. This noise often signals a problem inside the heater. Understanding the main causes helps fix the issue fast. Some problems are simple to solve, while others need a professional.
Mineral Buildup And Scaling
Hard water creates mineral deposits inside the heater. These deposits build up over time. They block water flow and cause loud noises. The heater works harder to push water through. This effort creates a roaring or humming sound. Regular cleaning helps prevent mineral buildup.
High Water Pressure
Water pressure that is too high can cause noise. The strong flow makes pipes and the heater vibrate. These vibrations sound like a jet engine. Pressure above the recommended level stresses the system. Lowering water pressure stops the loud noise and protects the heater.
Faulty Or Worn Components
Parts inside the water heater may wear out. Worn valves, burners, or fans can create loud sounds. They fail to work smoothly, causing vibrations and noise. Replacing faulty parts can restore quiet operation. Regular checks catch issues early.
Improper Installation
Incorrect setup leads to many problems, including noise. Poor alignment or loose parts cause rattling sounds. Wrong pipe sizes increase water flow noise. Proper installation ensures the heater runs quietly. Always use a trained technician for installation.
Impact On Performance
Strange noises from a tankless water heater, like a jet engine sound, often signal a problem. These loud sounds can affect the unit’s performance. Understanding the impact helps protect your heater and keep it working well.
Efficiency Loss
Loud noises can mean the heater is working harder than usual. This extra effort reduces efficiency. The unit uses more energy to heat water. Higher energy use leads to increased utility bills. Your water may take longer to heat. Over time, this wear lowers the heater’s overall performance.
Potential Damage To The Unit
Jet engine-like sounds may point to internal damage. Parts like the heat exchanger or fan might be failing. Continuous noise can cause these parts to wear out faster. Ignoring the sound risks costly repairs or full replacement. Early attention can prevent permanent damage and extend the unit’s life.
Credit: www.youtube.com
Troubleshooting Steps
Tankless water heaters making loud noises can be a big concern. Strange sounds like a jet engine may signal a problem. Taking simple steps can help find the cause. Follow these troubleshooting tips to fix the issue quickly. Each step is clear and easy to do.
Checking Water Pressure
High water pressure often causes loud noises in tankless heaters. Use a pressure gauge to measure it. Ideal pressure is usually between 40 and 60 psi. If pressure is too high, it creates noise and stress on the system. Lower the pressure by adjusting the pressure regulator valve. This reduces the loud jet-like sounds.
Inspecting For Scale And Debris
Mineral build-up inside the heater can cause noise. Hard water leaves scale and debris on the heating parts. Turn off the heater and check for visible deposits. Use a descaling solution to clean the inside. Removing scale helps the heater run quietly and efficiently. Regular cleaning prevents noise from coming back.
Examining Venting System
Blocked or damaged vents create loud sounds. Check the vent pipes for any blockages or cracks. Clear away leaves, dirt, or nests that might block airflow. Make sure the vent is securely attached and not loose. Proper venting lets the heater breathe and stops unusual noises.
Testing Internal Parts
Worn or faulty internal parts can cause loud sounds. Listen closely near the heater to locate the noise source. Check the fan, pump, and heat exchanger for damage. Replace any broken parts to restore quiet operation. Testing parts helps catch problems before they worsen.
Maintenance Tips
Keeping your tankless water heater quiet and efficient needs regular care. Small actions can stop loud noises, like sounds similar to a jet engine. Follow these maintenance tips to keep your heater running smoothly and quietly.
Regular Descaling
Mineral buildup from hard water causes noise and damage. Descaling removes these minerals inside the heater. Use a descaling kit or white vinegar for this task. Do it every 6 to 12 months to prevent loud sounds and improve performance.
Water Pressure Regulation
High water pressure can cause your heater to make loud noises. Check your home’s water pressure regularly. Keep it between 40 and 60 psi for best results. Use a pressure regulator to control spikes and protect your water heater.
Professional Servicing
Hire a plumber or technician for yearly inspections. They clean parts, check for damage, and fix issues early. Professional care extends your heater’s life and keeps noise low. Don’t skip this step for a quiet, reliable system.
When To Call A Professional
Hearing your tankless water heater roar like a jet engine is not normal. Strange noises can mean serious problems. Knowing when to call a professional can save you time and money. Acting quickly can prevent damage to your heater or home.
Signs Of Serious Issues
Loud noises from your heater can signal trouble. Listen for banging, popping, or hissing sounds. Water leaks or sudden drops in hot water are warning signs. Frequent shutting off or error codes on the display need attention. Strange smells or visible rust also mean a problem. These signs show your heater needs expert care.
Benefits Of Expert Repair
Professionals have the tools and skills to fix your heater right. They find hidden problems that you might miss. Expert repair improves heater safety and efficiency. It helps your heater last longer and saves energy. Repairs done by a pro keep your warranty valid. Calling a technician gives peace of mind and comfort.
Credit: www.youtube.com
Frequently Asked Questions
Why Does My Tankless Water Heater Sound Like A Jet Engine?
A loud noise usually means mineral buildup or a faulty burner. It causes vibrations and unusual sounds. Cleaning or professional servicing can fix this issue. Regular maintenance prevents loud noises and extends heater life.
Is It Normal For Tankless Water Heaters To Be Noisy?
Some operational noise is normal, but jet engine-like sounds are not. Loud noises often signal mechanical problems or sediment buildup. Prompt inspection is necessary to avoid damage and ensure efficient performance.
How Can I Reduce Tankless Water Heater Noise?
Regular descaling and flushing remove mineral deposits that cause noise. Tightening loose components also helps. Hiring a professional for routine maintenance ensures your unit runs quietly and efficiently.
Can A Noisy Tankless Water Heater Cause Damage?
Yes, persistent loud noises indicate internal issues that can harm components. Ignoring noise can lead to costly repairs or early replacement. Timely maintenance prevents damage and ensures safe operation.
Conclusion
Tankless water heaters can make loud noises like jet engines. This sound often means a problem inside the heater. Common causes include mineral buildup or a failing part. Regular cleaning and maintenance help keep it quiet. Ignoring the noise might cause bigger issues later.
Listening closely helps catch problems early. Quiet water heaters work better and last longer. Keep your heater running smooth with simple care. Don’t let the noise scare you—fix it soon. Your comfort depends on a calm, steady water flow.