Question about Water Water Heaters
Remove the pilot cover on the outside of the water heater. Turn the gas valve knob to "Light". Using a long fireplace match or long stem lighter light the pilot. Turn the knob to "run" or "on". Replace the cover. If it will not light or stay lit, you may need a new thermocouple. They are not that expensive, but replacing them yourself can be a pain.
Posted on Jun 26, 2019
The thermocouple sensor may not be in the best position to sense that the pilot is lit.
Adjust the thermocouple mount or simply bend the thermocouple "wire" so that the pilot flame is touching the tip.
Posted on Oct 13, 2009
Check the following:
See if your heater has a pilot gas adjustment valve. It should be on the gas control valve somewhere. Not all heaters have these. It will be a screw on the valve that can be turned.
Make sure the thermocouple sensing bulb is squarely in the pilot flame and also check that the fitting where the other end of the thermocouple connects to the main gas valve is tight.
Check the pilot gas orifice (where the pilot gas comes out) for carbon build up - you may need to remove the pilot gas line and thermocouple assembly to get to this. This problem is pretty common.
Check the gas pressure to the heater. Run the hot water in the dwelling until the hot water heater starts. Check the flame on the main burner and see what color it is - it should be blue with possibly some yellow-tipped flames. If not, there could be a problem with the gas pressure at the heater or venting. If the heater has a gas pressure regulator, it may be out of adjustment or defective.
Finally, and this isn't very common, the pilot light can be extinguished if there is a draft problem, usually associated with an issue with the flue pipe venting system for the heater or another nearby gas consuming appliance.
Posted on Dec 31, 2009
Testimonial: "thank you. will try these suggestions tomorrow. really appreciate it."
The thermocouple is weak or the pilot needs to be cleaned. If the pilot flame is strong, try replacing the thermocouple which is the tube that the flame burns on runs back to the control valve/
Posted on Jun 20, 2010
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