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Signs It’s Time for a New Tankless Water Heater


You invested in a tankless water heater and you’re so excited about the prospect of an endless supply of hot water. But over time, your system wears down and doesn’t work as well. You may not even notice it at first, but eventually, the signs are too many to ignore. 

If you suspect that you need tankless water heater replacement in Puyallup, WA, our team can help. But first, you need to know the signs. After all, they aren’t always obvious–especially if you get used to some of the inconveniences and write them off as being normal. 

Water Temperature

Your tankless water heater is designed to heat water on demand. This means that the water only heats up as you need it. If you’re showering or washing dishes, the water temperature should be consistent no matter how long you have it on. If you notice that the water temperature fluctuates when you haven’t changed the water manually, that’s a problem.

It’s possible for the water to suddenly be too hot or too cold. Both are a problem. Even if someone flushes a toilet or uses another water source in your home, it shouldn’t impact your existing stream of water. 

If you have hard water, mineral buildup inside your tankless water heater can block the elements from heating water. Thankfully, the solution is simple. A professional can flush out your tankless water heater and get it working again. But if you ignore this problem, it can put a strain on your tankless water heater and cause it to wear down faster, leading to an early replacement. 

Water Pressure

The same mineral buildup that impacts how hot your water is can also impact the water flow. Over time, minerals can block the plumbing that leads into and out of your water heater, lowering the water pressure. If you notice that the water pressure in your home is lower when the hot water is on, it may be a problem with your tankless water heater.

It’s possible that you have problems with both the temperature and water pressure from this one common problem. If that’s the case, you should schedule an annual appointment to flush out the system and keep it in good working order. Otherwise, you may find yourself investing in a new tankless water heater sooner rather than later. 


This is a very rare problem if you have a tankless water heater, but it’s still a possibility. If you see a pool of water under the unit–or even just a few drops–then you need to schedule a service appointment. Leaks shouldn’t happen with a tank water heater either, although they are more common. 

Keep in mind that a leak will never just go away. You have to invest in services to fix it or it will only get worse over time. You might think that since the system uses water around the clock that leaks are bound to happen. But that’s not true. A tankless water heater should be sound and secure with no broken seals or leaky pipes. 

Contact Sound Heating and Air Conditioning Inc. today! We take your comfort as seriously as you do.

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