Viking Water Heater: Making Loud Noise
Usually sediment built up on the tank bottom, or a failing heating element. Add a photo of your Viking Water Heater in the box below: the Triage Profile says what it is, how urgent it is, and who to call.
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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 Viking 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 in a Viking water heater often manifest as banging, popping, or rumbling sounds, typically originating from sediment buildup at the bottom of the tank. This sediment, primarily calcium and magnesium deposits, superheats and then collapses as bubbles, creating the disruptive noises. Over time, these deposits can also reduce heating efficiency and potentially damage the heating elements or tank lining.
Tools & parts
For checking and addressing sediment, you'll need a garden hose for flushing, a 3/4-inch drain valve if replacement is necessary, and a flathead screwdriver for opening access panels. A new brass drain valve for a Viking water heater or a specialized tank flushing kit may be needed. Additionally, a voltage tester can be useful for checking heating element continuity if the noise is accompanied by heating issues.
Safety first
Before any work, always shut off the power to the Viking water heater at the circuit breaker to prevent electrical shock, and turn off the cold water supply valve to the unit. Be cautious of extremely hot water when draining the tank, as it can cause severe burns; ensure the water has cooled sufficiently or drain it into a safe location. Additionally, if dealing with gas Viking water heaters, turn off the gas supply valve to prevent gas leaks and potential explosions.
When to call a pro
If the loud noises persist after thorough flushing, or if you observe water leaks around the tank or connections, it indicates a more serious issue requiring a professional Viking technician. Persistent rumbling could signify a failing heating element or a compromised tank lining, which are complex repairs best handled by an expert to avoid further damage. Furthermore, any issues with the pressure relief valve or a suspected anode rod failure, especially if accompanied by unusual odors or discolored water, warrant immediate professional assessment.
Questions people ask
Why does my Viking water heater make a popping noise?
Popping noises in your Viking water heater are typically caused by sediment buildup at the bottom of the tank. As the heating element heats the water, trapped pockets of water within the sediment boil and then burst, creating the popping sound.
Can I ignore the loud noises from my Viking water heater?
No, ignoring loud noises is not recommended as it can lead to decreased efficiency and potential damage to the unit. Sediment buildup can overwork heating elements and eventually lead to premature tank failure.
How often should I flush my Viking water heater to prevent noise?
It's generally recommended to flush your Viking water heater annually to prevent sediment buildup and associated noises. In areas with very hard water, flushing every six months might be beneficial.
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What it is, how urgent, who to call
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