What to do if your tankless water heater does not ignite?
If it isn’t, the gas may have been shut off and you’ll need to contact your gas company. Next, check that the water and gas valves are completely open. This could also cause the tankless to not ignite. If none of the above steps resolve the issue, you should call a professional to assess the situation.
Why is there a gap in my tankless water heater?
Although tankless water heaters are also called “instantaneous water heaters,” they still take time to heat water, so after the trapped water was used up, you were left with a gap of unheated water. The further your water has to travel from the water heater to its destination, the more noticeable the gap.
Why does my Bosch tankless water heater not light?
The collar has no water and the opening to the tube is clear/non-obstructed. There is some corrosion, but I suppose that is expected for a non-condensing tankless water heater. I’m thinking maybe the next area to concentrate is in and around the exhaust fan (#18).
Why does my tankless water heater make noise?
Tankless water heaters make noise when they’re operating. However, if you notice loud or new sounds that you haven’t heard before, it could be a sign of trouble. Check the fan for loose debris. Check that the burner is still working and that the flame is clear or light blue.
What causes an ignition failure on a tankless water heater?
The ignition failure on tankless water heaters can occur to any brand and model, no matter how advanced or not is. The failure can be caused by a problem inside the water heater or due to an external cause.
What to do if your tankless water heater has no hot water?
No hot water is one of the most common tankless water heater problems. The first things you should check are the electric power, water, and gas supply to the water heater. Check the shut-off valves, as they might be in the closed position.
What to do if your water heater won’t ignite?
If the minimum inlet pressure is not present, the unit might not ignite. Gas connection. Check gas connections to the heater and from the gas control valve to the combustion chamber. If there is moisture in the connecting tube, the gas valve needs to be replaced.
Where do I find the failure code on my tankless water heater?
As most of the newer advanced tankless water heaters utilize the self-diagnostic system and are equipped with the LCD display on the unit or remote controller, a numerical error code will display or flashing light. Here are the ignition failure codes found on some tankless brands:
