There are many sources that tell you about thermopile voltage low on water heater.
Whirlpool gas water heater pilot light problems.
Usually the first warning.
If the status light is flashing once every three seconds the pilot light is lit and the gas control valve is working properly.
When the pilot light goes out for any reason the thermocouple closes the burner s gas supply valve to prevent gas escaping and filling your house.
Pilot light issues are some of the most common problems experienced with gas water heaters.
Keep the knob pushed in while repeatedly clicking the spark igniter button.
If the status light is not flashing try lighting the pilot using the instructions on the water heater s label.
If the gas is lit it fully opens the main valve to provide a steady supply of gas.
Your heater s pilot light allows the burner to cycle on and off while maintaining the water in the tank at a constant temperature.
You water heater may not work and the gas control valve blinked with the two lights means that you have voltage thermopile.
When lighting the pilot make sure the knob on the gas control valve is fully pushed in.
As an example like video below about water heater pilot light thermopile troubleshooting.
Solved pliot will not stay lit fixya whirlpool nu40t61 403 gas water heater parts sears direct whirlpool water heater review and lighting instructions you how to relight water heater pilot light no hot you resetting the honeywell gas valve on a water heater.
Otherwise if the pilot light is not functioning correctly the unit won t turn on and you won t have hot water.
Without it the water heater won t be able to maintain internal temperatures allowing the water to cool off.
How to light the pilot for a gas hot water heater.
Make sure the gas supply valve is turned on.
Tank type gas water heaters use a pilot light to ignite the gas burner when the water in the tank needs to be heated.
The pilot light in your hot water heater does more than simply ignite the gas.
It s the soul of your water heater.
It starts the whole process by first supplying a small amount of gas to the pilot light.