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Understanding And Resolving Noises From Your Hot Water Tank

By 4 February 2025Resources
Understanding And Resolving Noises From Your Hot Water Tank

If your water heater has been making strange noises lately, it’s a sign that something might be off. In this article, we’ll break down the most common water heater noises and what they mean.

Common Noises Emitted By Hot Water Tanks

Here are the most common noises to pay attention to:

Popping Or Rumbling Sounds

Sediment buildup is likely the culprit in this situation; minerals and debris from your water supply settle at the bottom of the tank, trapping water. Flush your hot water heater at least once a year to avoid accumulation.

Hissing Or Sizzling Noises

This is often due to water dripping onto the heating element or burner; the sediment traps water, creating steam that escapes with a hiss. Check the tank and look for water pooling near the base.

Knocking Or Banging Sounds

A water hammer causes banging noises, a pressure surge that happens when cold water flow is abruptly stopped. However, a water hammer arrestor provides a cushion of air to dampen the impact.

Ticking Or Tapping Noises

A ticking noise is usually harmless and may be caused by thermal expansion and contraction of metal components. However, insulating the pipes with foam sleeves can help minimize the noise.

Diagnosing The Source Of The Noise

Here’s how to pinpoint the problem:

  • Perform a Visual Inspection: Check your hot water heater for visible signs of trouble.
  • Listen Closely: Pay attention to where the sounds are coming from.
  • Test Your Water Quality: If you live in a hard water area, consider testing your water hardness.

Effective Solutions To Silence Your Hot Water Tank

If you’re still struggling with noise, these preventative measures can help tackle most water heater-making noise issues at the source:

Flushing The Tank

Turn off the power to your hot water heater and shut off the cold water supply. Attach a hose to the drain valve and empty the tank to flush out the sediment that’s causing popping sounds.

Installing A Water Hammer Arrestor

Using a threaded connection or T-fitting, attach the arrestor to the water line near the source of the popping sound or strange sounds.

Insulating Pipes

Use pipe sleeves made of foam or fibreglass for a snug fit around the pipes. For electric heaters, foam insulation works well, while fibreglass is ideal for pipes near gas heater flues.

Preventative Maintenance Tips

With these regular maintenance tips, you can help avoid common issues for your hot water heaters:

  • Schedule annual inspections to check for water leaks.
  • Install a water softener to reduce sediment buildup.
  • Test the pressure relief valve to avoid overheating.
  • Adjust the thermostat to maintain safe temperatures.

Sometimes, the best preventative measure is to get an assessment from a professional, like Clean Line, to evaluate your situation and keep your system running smoothly.

When To Seek Professional Assistance

If you’re still experiencing persistent noises, signs of leaks, inconsistent water temperature or even unusual odours, it’s time to call a professional. For trusted service and expert repair of your hot water tank in Winnipeg, Contact Clean Line today!