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Tankless Water Heater Repair

Common Issues Your Tankless Water Heater Can Experience

If you are looking to buy a water heater, tankless water heaters can prove to be a great investment for your home or office. These appliances work on high tech systems that can deliver an endless supply of hot water. By heating water, only when needed, they can save a large amount of energy compared to conventional tank-style water heaters.

Although the occurrence of issues within a tankless water heater is considerably rare, they are electrical appliances at the end of the day and are prone to problems. Certain issues can arise if either the unit as a whole or an individual internal part starts malfunctioning. Here are the 6 most commonplace problems a tankless water heater can face:


Accumulation of Minerals:
The buildup of minerals can serve as a problem in both, tankless water heaters as well as traditional kinds. If you live in a region where the type of water supply is hard, there is a greater possibility of mineral buildup. Minerals such as Calcium and Magnesium create a nasty, scaly buildup in the unit that can cause grave damage if not addressed. For immediate assistance, call a water heater repair service provider.


Overload on System:
Your tankless water heater can get overburdened if a number of persons are using the appliance or the heater is being used for multiple uses. In such a situation, the heater may either struggle to supply hot water or shut down altogether. If this occurs repeatedly, you should consider upgrading to a larger water heater or adding one more unit. This will turn out to be cheaper in the longer run.


Coldwater Blast:
If the water in your shower is fluctuating between warm and cold temperatures, you have a serious problem on hand. This implies that some of the hot water remained in the pipes on the way to the shower; therefore you received warm water initially. The gap between the trapped water and unheated water brings out the cold blast. The further your water has to travel from the hot water heater to its destination, the less likely you are to receive a continuous supply of hot water. Contact a professional appliance repair service for technical help to prevent serious damage.


Message Of Malfunction:
If your tankless water heater is having issues with combustion air or venting, a message such as ‘Air Supply’ or ‘Exhaust Blockage’ will be displayed. Ensure that the vent pipes are connected properly and do not seem to have major holes. Another common reason for blockage could be the presence of bird nests, rodents, etc. Call a professional instantly to detect gas leaks invisible to the naked eye.


Looking For Ignition:
A ‘No Ignition’ message on your unit means that your heater is trying to light but is unable to start. The problem may be related to the gas supply or venting which could be caused due to an empty propane tank or an unpaid gas bill. To be certain of the issue and its solutions, call a water heater repair service to assess the situation.


At HWisel, we offer you with first-hand solutions to repair your tankless water heater so that you can avail hot water, anytime!

HWisel provides water heater repair service for almost all the brands. An added bonus if you own a Rinnai water heater is that HWisel is here to provide quick and effective fixes!

Download our App now on Android and iPhone to get in touch with our trained service professionals and get your water heater repaired right away.

John Nassar

Mr. John Nassar is Founder of Hwisel Soft Inc. He has 18+ years of experience in the Residential HVAC, Home Security, Smart Home, and Consumer Finance industry. He is a serial entrepreneur that is also a consumer and advocate for the same products and services his companies provide. He is a change junky that enjoys cycling, traveling, and family. He holds a Masters Degree in Business, an undergraduate B.Comm Degree with a Major in Economics.

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