The most common reason that your pilot light on your water heater keeps going out is a damaged, bent or dirty thermocouple.
Subsequently, can you replace a thermocouple yourself?
1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. It’s easy to replace and a new one costs $5 to $10. … Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve. The burner typically sits loosely—or under clips—in the burning chamber and just slides out.
Likewise, people ask, how do I know if my thermocouple is bad on my water heater?
If the pilot lights but the flame goes out as soon as you release the button after holding it for 60 seconds, then the thermocouple is bad. It’s possible to replace the thermocouple without removing the burner assembly, and many repair people do this.
How do you fix a gas burner that won’t stay lit?
How do you fix a hot water heater that won’t stay lit?
How do you fix a water heater that won’t stay lit?
How long should a water heater thermocouple last?
In effect, new thermocouples were installed into contaminated tubes, causing the degradation of the sensors and generating greater than a 100°F shift in accuracy. In this scenario, thermocouple life, which should have been close to one year, was shortened to within a week.
How much does a thermocouple cost?
It costs $150 to $250 to replace a thermocouple. It checks to make sure the pilot light is on. It will shut the gas off if it’s not.
Why does furnace pilot go out?
If your furnace pilot light keeps going out, it’s likely you have a broken thermocouple in your gas furnace. The thermocouple is a rod that comes into physical contact with the flame in your system. … When this component is not able to detect the flame, it will close the gas valve to prevent a gas leak in your home.
Why does my water heater burner won’t stay lit?
Thermocouple. If your gas water heater doesn’t stay lit, you may have a defective thermocouple. Most gas fired water heaters use a standing pilot to ignite the main burner. … Changing the thermocouple does not involve any gas fittings but local regulations may require that a qualified gas technician perform the repair.