Yes, just like any other home comfort system, a tankless water heater may at some point need a repair of some kind. True, a tankless system has fewer components than a storage tank system, but that does not mean it’s immune to problems. Of course, you can fend off the worse of these problems with appropriate maintenance, but you may still run into a malfunction at some point.
It’s true—one of the main benefits of installing a tankless water heater is that they encounter fewer repairs on average than storage tank systems, since they don’t deal with the stress of water stored in a tank and the continuous need to use energy to keep the water heated. A tankless system simply does less work, and that means it doesn’t wear down as fast. Keep reading for what can go wrong, though.