Plumbers 911 - Top 5 Things to Consider Before Starting a Bathroom Remodel
20 Aug

Is your hot water heater making noise? What’s wrong and how to fix it

Water heaters are known to make a certain amount of noise. It doesn’t necessarily mean anything is wrong. But there are certain water heater noises that indicate a serious problem that will require a HVAC specialist like the contractors at HVAC 911. We may need to flush your water heater, replace a part or outright replace the entire unit.

Here are a few reasons why your water heater could be making noise, and what to do about it. If you have any questions, contact HVAC 911 to be connected to a HVAC tech in your area.


Hard water is causing a rumbling or popping sound

Sediment buildup often occurs in hot water tanks, especially if you live in an area that has hard water. Mineral rich hard water leaves a residue that builds up into sediment that can clog the bottom of your tank. Collected sediment will trap water, which creates pressure as the water forces its way through the sediment. This can create a popping or hissing sound.

That’s why we recommend annually flushing out your hot water tank by a HVAC specialist like the contractors at HVAC 911. They can flush and drain the tank to remove sediment build up and lengthen the lifespan of your hot water tank and improve its performance. 


Ticking sounds are caused by changes in water pressure

Ticking sounds can result from changes in water pressure, loose pipe straps and heat trap nipples. Fortunately, these sounds are perfectly normal and not cause for concern. If the sound is annoying, you can adjust the straps on loose pipes to dampen the noise. Lowering the temperature of your water heater may also eliminate the ticking sound.


Screeching sounds may be caused by a bad relief valve

If your water heater is making a high pitched screeching sound (much like a tea kettle), water flow through a valve may be significantly restricted. Check the temperature and the pressure relief valve at the side of the tank. This valve allows water to escape if the pressure gets too high. If this valve is the source of the noise, immediately turn off the gas, electricity, and water to the tank and call HVAC 911, for professional help.

If it’s not this valve, the sound may be coming from the waterline. Make sure the valves are fully opened. Check the lines for any kink or deformations that may be restricting the flow of water. If there’s a problem with the lines, you may need to contact the HVAC specialists at HVAC 911.


A water hammer is creating a banging sound in your pipes

A water hammer occurs when water is forced to stop or change direction abruptly, creating a pressure surge within your system. This surge can lead to deformed pipes and can also expand and deform your hot water tank. If this happens frequently, call HVAC 911. One of our local HVAC technicians can install a water hammer arrestor or pressure-reducing valve to prevent damage.


Need a HVAC technician? Call HVAC 911

If you need a HVAC specialist, call HVAC 911. We are a network of HVAC techs that can send a local specialist to your home to inspect and repair your water tank. 

Our HVAC Techs are specially trained, licensed, insured and bonded. They have undergone a rigorous background check and drug testing. Find a local HVAC 911 tech in your area today!

To all our friends and customers regarding COVID-19

We will get through this together To say we are living in “unprecedented” challenging times would be an understatement. We hope this finds you and your family safe and healthy. We would like to list a few pieces of information and websites that we think will be helpful for you during this time.

  • To get the most current information on the COVID-19 virus, please check the CDC (Center for Disease Control and Prevention) website at:
  • icon showing hand under faucet with large water droplets falling on hand Please wash your hands frequently. Washing with soap and water for twenty seconds is the preferred method, however when water is not available, please use an alcohol based hand sanitizer containing at least 60% alcohol.
  • icon of person covering mouth while coughing and a border separating from displeased person close by Practice social distancing by staying at least six feet away from another person.
  • For those of you with children that are looking for something fun to do, there are virtual field trips you can take with your kids that are fun and educational. Here is a link:

Plumbers are considered essential workers during this time and we will continue to work as our number one priority is to “protect the health of the nation.” Stay well, stay safe and we will get through this together.

Your Friends at Plumbers 911

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