Here is the scenario: Your tankless water heater heats the water in the house…on occasion. Sometimes it will kick in while at other times it will provide nothing but cold water. What do you do?
Well, the first step in seeing if there is an easy fix by calling the technical support number that is listed on the water heater. It is possible that tech support may be able to walk yours through a simple repair over the phone. But you do need to know when you call, what temperature the hot water heater was set at. For this issue, the water heater might have thrown a code on the control panel and as a result, this is keeping the heater from firing up.