Tankless water heaters are a great way to provide hot water on demand while also saving space and energy. However, like any other appliance, they can develop problems over time. Here are some signs that your tankless water heater may be in need of expert water heater repair services:

1. Lack of Hot Water: If you’re not getting hot water from your tankless water heater, there could be a number of reasons. The problem could be with the heating element, a blockage in the pipes, or a malfunctioning thermostat. A professional plumber can diagnose the issue and provide the necessary repairs.

2. Strange Noises: Tankless water heaters are generally quieter than traditional tank-style water heaters. If you hear strange noises such as gurgling or popping sounds, this could indicate a problem with the system. It’s best to have a professional inspect the unit to determine the cause of the noise.

3. Leaking Water: Leaks can occur in any water heater, but they’re particularly problematic in tankless units because they can damage the electronics that control the heating element. If you notice any water around the unit, it’s important to have it inspected right away.

4. Error Codes: Tankless water heaters have built-in diagnostic systems that display error codes when something goes wrong. If you see an error code on the unit’s display, it’s best to consult the owner’s manual or contact a professional plumber for assistance.

5. Poor Water Quality: If the hot water coming from your tankless water heater has an unusual smell or taste, it could be due to mineral buildup in the unit. A professional plumber can flush the system and remove any buildup to improve water quality.

In summary, if you notice any of these signs, it’s important to have your tankless water heater inspected by a professional plumber. With timely repairs, you can avoid costly repairs or even premature replacement of your water heater.