The high limit switch is bad.
Gas water heater reset button.
If the light goes out try it again.
Step 6 check the water temperature.
Other reasons for a hot water heater reset button to trip.
There should be a button to release the gas.
Turn the water heater s gas valve switch to the off position wait for a few seconds and then flip the switch to the on position to reset the system.
The water heater s gas valve is located near the bottom of the unit and connects to your home s natural gas line.
A thermal switch is installed in newer gas water heaters as a safety device.
In most cases your water should be back to normal within a few hours.
And the light should stay on.
How to reset a gas water heater pilot light.
After 3 tries if the light still goes out then your gas water heater may need professional service.
All you need to do is open the heater press the button and close the heater again.
If it s tripped you may be able to hear it click.
Thermostats aren t the only parts on an electric water heater that can wear out and trip the reset button especially if you re finding you have to reset the water heater frequently or you run out of hot water fast and often.
Even if you do not hear the thermal switch click try lighting the pilot using the instructions on the water heater s label.
Press the small reset button in the center of the thermal switch.
If you often experienced that your hot water heater keeps tripping reset button ask a plumber to check your water heater although a water heater can last for several years without being maintained there is still a missing factor which needs to be accountable for.
As long as you can find the water heater and identify the reset button the process is simple.
Blocked vents at the top and bottom of the water heater can cause.