Tankless water heaters tend to work very well and keep the people who use them very happy. So happy, in fact, that it might be easy to forget that the tankless system is even there. (If you never have to wait for a tank to refill and heat back up before you can take your shower, do you ever think about your water heater at all?)
But tankless water heaters are complex systems, and just like any other appliance, they can struggle or even break down. Here are some signs to keep an eye out for. If you notice any of these things, it’s time for water heater repair.