Check the flex tube.
Whirlpool gas water heater pilot light will not stay lit.
The thermocouple detects the pilot light as it can sense the heat the pilot light creates.
This is all done as a safety feature so there are no gas leaks.
As a result the pilot doesn t get enough fuel to stay lit.
Pilot will not stay on.
When the thermocouple detects the pilot light is off it will shut down the gas flow.
Dirt and debris can collect in the pilot tube causing the flow of gas to be blocked.
The function of the thermocouple in your gas furnace is to check to see if the pilot light is on or off.
If your gas water heater doesn t stay lit you may have a defective control thermostat.
The pilot light will not remain lit.
When troubleshooting the pilot light problems such as when it does not stay lit keep in mind that there are often different causes for this and other conditions.
The gas supply to the pilot assembly is controlled by this valve.
Check along the tube to straighten it so there s no obstruction to the flow of gas.
This is also a likely cause if the pilot won t ignite at all.
Thankfully a dirty pilot tube is the easiest issue to fix.
This control is part of the gas valve assembly and normally has a dial that will allow for temperature adjustment and will also have a probe that monitors the water temperature.
The flex tube is how the gas reaches the device and if the continuous flow of gas is interrupted the pilot light won t stay lit.
Whirlpool water heater mo n40t61 343 gas.