AO Smith

2 Flashes AO Smith Water Heater AO Smith status LED flashing twice means the thermopile is generating less … 4 Flashes AO Smith Water Heater AO Smith gas water heaters use a small status LED on the gas control … 5 Flashes AO Smith Water Heater AO Smith status LED flashing 5 times indicates a blocked exhaust vent — the unit … 6 Flashes AO Smith Water Heater AO Smith status LED flashing 6 times means the tank temperature exceeded the … 8 Flashes AO Smith Water Heater AO Smith status light flashing 8 times indicates a gas valve fault.<br>The … E2 AO Smith Water Heater E2 means the water in the tank has reached the high-temperature limit.<br>Either … E3 AO Smith Water Heater E3 indicates a sensor wiring fault — the temperature sensor is reading a voltage … E5 AO Smith Water Heater E5 is a communication fault between the main control board and another component … E1 A.O. Smith Water Heater E1 on an A.O. Smith water heater means the gas burner failed to ignite within … E4 A.O. Smith Water Heater E4 means the thermopile is not generating enough voltage to keep the gas valve …