Why Your Hot Water Heater Keeps Running Cold – and How to Fix It

Your tankless water heater is supposed to provide you with endless hot water, but sometimes it can seem like it’s just not up to the task. You might find that your water heater runs cold more often than it should, or that it takes a long time to heat up the water. Don’t worry – you’re not alone. Many homeowners experience this same problem. While you can try fixing the problem on your own, oftentimes it requires a professional tankless water heater repair to restore the unit.

Here are the common causes of tankless water heater problems and how to fix them:

Sediment buildup

One of the most common reasons your tankless water heater might be running cold is a build-up of sediment in the heating chamber. Over time, minerals in the water can settle at the bottom of the tank and create a barrier between the heat source and the water. This can make it more difficult for the water to heat up, and as a result, you might find that your water is not as hot as it used to be. 

If you think that sediment might be causing your tankless water heater problems, there are a few things that you can do to fix it. First, try flushing out the tank with clean water. This will help to remove any sediment that has built up inside. If the problem persists, you might need to descale the tank. This is a more involved process, but it will remove any hard water deposits that might be causing your tankless water heater problems.

Faulty heating element

Another common cause of tankless water heater problems is a faulty heating element. The heating element is responsible for heating the water inside the tank, and if it is not working properly, the water will not get as hot as it should. If you suspect that the heating element is to blame for your cold water, you should contact a professional to have it repaired or replaced.

Faulty thermostat 

Finally, another possibility is that there is something wrong with the thermostat on your tankless water heater. The thermostat controls how hot the water gets before it is sent to your home, and if it is not set properly, the water might not be as hot as you want it to be. You can adjust the thermostat yourself, but if you are not comfortable doing so, you should contact a professional for help.

If your tankless water heater keeps running cold, don’t despair! There are a few things that you can do to fix the problem. First, try flushing out the tank or descaling it if there is a build-up of sediment. Second, check the heating element to see if it needs to be repaired or replaced. Finally, make sure that the thermostat is set properly. If the problem persists after following these steps, do not hesitate to call for professional help. Book a reliable plumbing repair service today in your local area today!

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