Uploaded June 2025 | Updated September 2026, 3 weeks ago
In this video, I will show you how to resolve a flashing error code on a Envirosense water heater, but this could work on other models. To resolve this issue, first ensure the vent is clear, then hit the disable button on the unit, and unplug the power. After waiting, plug the tankless water heater power back in, and switch to enable to see if the error is resolved. The whole pre and post purge took over 20mins. Call your repairman or gas company for more.
In this video, I will show you how to resolve a flashing error code on a Envirosense water heater, but this could work on other models. To resolve this issue, first ensure the vent is clear, then hit the disable button on the unit, and unplug the power. After waiting, plug the tankless water heater power back in, and switch to enable to see if the error is resolved. The whole pre and post purge took over 20mins. Call your repairman or gas company for more.
