Usually not an emergency

Electrolux Water Heater: Making Loud Noise

Usually sediment built up on the tank bottom, or a failing heating element. Add a photo of your Electrolux 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.

  1. 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.

  2. 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.

  3. 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 an Electrolux 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 your Electrolux water heater, such as popping, rumbling, or banging, often indicate sediment buildup at the bottom of the tank. As the heating elements attempt to heat water, trapped pockets of water within the sediment boil and burst, creating these disruptive sounds. This issue not only reduces the unit's efficiency but can also lead to premature failure of heating elements or the tank itself over time.

Tools & parts

To address sediment, you will need a standard garden hose, a large bucket, and a flathead screwdriver or socket wrench for the drain valve. For potential anode rod replacement, a 1-1/16 inch socket and breaker bar and a new magnesium anode rod might be necessary. A water heater flushing kit with a descaling solution can also be beneficial for thorough cleaning.

Safety first

Always shut off the power to the Electrolux water heater at the circuit breaker before beginning any work to prevent severe electrical shock. Turn off the cold water supply valve to the water heater to stop water flow into the tank and prevent accidental refilling during maintenance. Be aware that the water inside the tank can be extremely hot, so wear appropriate protective gloves and eye protection to avoid scalding burns during the draining process.

When to call a pro

If the loud noises persist after a thorough flushing, or if you suspect a faulty heating element or thermostat, it's best to call a qualified technician. Complex issues like a leaking pressure relief valve, a compromised tank integrity, or persistent electrical faults require specialized testing tools and expertise. Furthermore, if the noise is a high-pitched whine, it could indicate a failing pump or motor in a tankless Electrolux model, which is a job for a professional.

Questions people ask

Why does my Electrolux water heater make a popping noise?

A popping noise is typically caused by sediment buildup at the bottom of the tank. As the heating elements heat the water, trapped pockets of water within the sediment boil and burst, creating the popping sound.

Can I ignore the loud noises from my water heater?

Ignoring loud noises is not recommended as it can lead to decreased efficiency, higher energy bills, and potential damage to the heating elements or the tank itself. Addressing the issue promptly can prevent more costly repairs down the line.

How often should I flush my Electrolux water heater to prevent noise?

It is generally recommended to flush your Electrolux water heater annually, or more frequently if you live in an area with hard water. Regular flushing helps remove sediment and prolongs the life and efficiency of the unit.

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