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Owner of Robins Plumbing, Stephanie Robins with featured blog titled Signs that your tankless gas water heater needs to be repaired

Signs That Your Tankless Gas Water Heater Needs To Be Repaired

December 20, 2023

Is Your Tankless Gas Water Heater Malfunctioning? Here Are Some Signs That It Needs To Be Repaired. 

A navien gas tankless water heater.

Tankless gas water heaters, are also known as on-demand water heaters. They are a popular choice for many homeowners. Gas tankless water heaters are energy efficiency and have the ability to provide hot water on demand. However, like any other appliance, tankless gas water heaters can malfunction from time to time. Being able to identify the signs of a malfunctioning tankless gas water heater can help you to address the problem early on. This is a great way to prevent costly future repairs or a complete system failure. Here’s some signs that your tankless gas water heater needs to be repaired.

  • Lack of Hot Water: One of the most obvious signs that your tankless gas water heater is malfunctioning is a lack of hot water. If you notice that the hot water is not reaching the desired temperature it may be an indication that your tankless gas water heater is not working properly.
      
  • Strange Noises: If you notice strange noises coming from your tankless gas water heater this could be an issue. Noises such as hissing, popping, or rumbling sounds, may be a sign of a problem. These noises can indicate that there is a buildup of mineral deposit. It could also mean a malfunctioning component, such as a blocked burner or failing fan.
      
  • Error Code Display: Many modern tankless gas water heaters have a digital display. The digital display shows error codes in the event of a malfunction. If you notice an error code on the display of your tankless gas water heater, it’s best to contact a professional. A plumbing professional will diagnose and fix the problem.
      
  • Water Leaks: A water leak around the tankless gas water heater is another sign of a malfunction. This can be caused by a variety of issues, such as a faulty o-ring or a cracked heat exchanger.
      
  • Strange Smells: Strange smells around the tankless gas water heater can also indicate a problem. A gas leak or an accumulation of debris and mineral buildup inside the heater could be the cause of an unpleasant smell.
     
  • Increased Gas Usage: If you notice an increase of gas usage on your bill without having an increase in normal usage of your tankless water heater it could be an indicator that something is wrong. This could either be an issue with your gas tankless water heater or a leak on your gas line.
      

If you notice any of these signs, it’s important to address the problem as soon as possible. The faster you address the problem the more damage you can prevent to your tankless gas water heater. A licensed plumbing professional can diagnose and repair the problem. A plumbing professional will also ensure that your tankless gas water heater is working properly and efficiently. Regular maintenance can also help to prevent malfunctions and prolong the lifespan of your tankless gas water heater. 

It’s important to note that many of these symptoms can also be caused by issues with the gas supply to the tankless water heater, such as a poor gas pressure, that can cause malfunctions as well, it’s important to diagnose the issue and fix the problem as soon as possible to prevent further damage to your tankless gas water heater. 

 

Services in Phoenix & Beyond

If you’re in the Phoenix area and would like an in home consultation about your gas tankless water heater please reach out. At Robins Plumbing we are happy to help. Are you facing issues with your plumbing? Feel free to “Call a Robin” and we will do our best to help. If you live in the Phoenix metropolitan area and need help clearing your toilet stoppage trust Robins Plumbing!

With over 20 years of experience in the plumbing industry, you can trust our professionals. Our plumbing professionals will deliver a professional consultation to see what solution fits best for your home. We also offer a variety of residential and commercial plumbing services, including: drain cleaning, water heater repair and replacement, sewer camera inspection and locating, backflow prevention, commercial and residential jetting, water treatments, and more. Visit our reviews online to see what others have to say about our local plumbing company! 

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