A professional is typically required to repair a tankless water heater. The problem may be with the gas line, the wiring, or with the unit itself. If you are comfortable doing electrical work, you may be able to check the wires and replace any broken ones. If you are not comfortable doing electrical work, it is best to call a professional. Replacing a gas line can be dangerous and should only be done by a professional. The unit itself may need to be replaced if it is not working correctly. Again, this should only be done by a professional.

A tankless water heater is not a permanent fixture and typically requires more maintenance than a traditional tank-style heater. There are several things that may go wrong with a tankless water heater and the most common repair is to clean the burner. If your tankless water heater is not working, you will likely need to call in a professional to assess and repair the issue.