Samsung Water Heater: Making Loud Noise
Usually sediment built up on the tank bottom, or a failing heating element. Add a photo of your Samsung Water Heater in the box below: the Triage Profile says what it is, how urgent it is, and who to call.
Show us the water heater.
Snap a photo — see what it is, how urgent, who to call. One photo of the problem. fixRAgent reads it and gives you a Triage Profile.
Or start with a sentence
AR Logic LLC · Privacy · Managing this for someone else? There is a version of this for whole portfolios. Managers: set it up for your buildings →
In the next five minutes
Safe first steps, before the call. Nothing here needs a tool.
If you smell gas, a carbon monoxide alarm sounds, or anyone feels dizzy or sick: don’t touch any switch or plug, leave and get everyone out, then call 911 or the gas company from outside.
No gas smell? Note what the noise sounds like and when it happens, then turn the water heater’s gas control knob to OFF if it’s gas, or switch off its breaker if it’s electric.
Take a photo of the tank, the floor and its label, without opening anything.
Everything else about this problem
Is it an emergency?
Is a loud noise from a Samsung water heater an emergency?
Usually not an emergency. A grinding, rattling or humming that has just started most often comes from a fan, motor, belt or loose panel. Stop using it and cut the power if the noise comes with a burning smell, smoke or sparks; if it runs on gas and you smell gas, leave and call the gas company or 911 from outside.
Symptoms & causes
Loud noises from a Samsung water heater often indicate sediment buildup at the bottom of the tank, which can cause popping or rumbling sounds as water heats and steam bubbles escape. These noises can also stem from expanding and contracting metal components due to temperature changes, or a failing heating element that is overheating. Over time, mineral deposits accumulate, insulating the heating elements and causing them to work harder, leading to increased noise and reduced efficiency.
Tools & parts
You will likely need a garden hose for flushing, a 1-1/16 inch socket or wrench for the heating elements, and a multimeter for testing electrical components. A new heating element for a Samsung water heater or a replacement anode rod may be needed. Additionally, a tank flush kit or descaling solution might be useful, to effectively remove stubborn sediment.
Safety first
Before any inspection or repair, always turn off the power to the water heater at the circuit breaker and shut off the cold water supply valve to prevent electric shock or scalding. Ensure the water heater has cooled down sufficiently before draining or touching internal components, as hot water can cause severe burns. Wear appropriate personal protective equipment, including gloves and safety glasses, to protect against hot water, rust, and potential electrical hazards.
When to call a pro
If the noise persists after flushing and inspecting elements, or if you detect a burning smell or visible leaks, it's time to call a professional technician. A professional is needed for checking complex electrical issues, such as a faulty thermostat or wiring, which can be dangerous to troubleshoot without expertise. Furthermore, if the pressure relief valve is constantly discharging or the tank itself appears corroded, these are serious structural issues requiring immediate professional assessment and potential replacement.
Questions people ask
Why does my Samsung water heater make a popping noise?
A popping noise usually indicates sediment buildup at the bottom of the tank. As water heats, it gets trapped under the sediment and creates steam bubbles that pop when they escape.
Can I fix a noisy water heater myself?
Many common noise issues, like sediment buildup, can be resolved with a simple tank flush. However, electrical component failures or tank leaks often require professional intervention for safety and proper repair.
How often should I flush my Samsung water heater?
It is recommended to flush your Samsung water heater annually to prevent sediment accumulation. In areas with hard water, more frequent flushing, perhaps every six months, may be beneficial.
Related problems
More Samsung water heater problems
Check another symptom for your Samsung Water Heater.
Making a loud noise: other brands
Guides and hubs
A resident sent you this?
What a property manager should do when a resident reports a leaking water heater: the first message, how urgent, who to send.
The manager’s checklist →Ask AI about this problem
What it is, how urgent, who to call
Add a photo of your Samsung Water Heater in the box at the top. The Triage Profile says what it is, how urgent it is, and who to call.