Question about Water Heaters
Could the pilot light on/off control button be faulty and if so can just that button be replaced. Thank you, Jack Campbell, Wilmington,NC
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Posted on Jan 02, 2017
The pilot assembly should look similar to the pic above. Depending on where you live, you may be required to hire a certified plumber to replace the parts. If not you can do it your self. Keep in mind if it's not staying lit you also need to check the thermostat and the thermocoupler before replacing the pilot assembly. There is a good chance it is just the thermocoupler going out. It is one of the first things to check when troubleshooting a pilot light problem with a gas water heater. A thermocouple determines if the pilot light is lit. If it's not lit, the gas valve fails. If that's the problem, replace the thermocouple.
Posted on Jul 09, 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."
SOURCE: water heater pilot
This is more than likely the thermocoupler. The thermo Coupler is a solid cylinder shape with a point on one end and a thick aluminum wire on the other the tip is situated so that it is in the pilot flame. When it reaches a certain temperature from the pilot it sends a signal for the gas valve to stay open and keep the pilot light. If it does not send the signal the valve closes and shuts the gas off for safety. Solution first make sure you hold button long enough to heat Thermocoupler (about 30 sec) if pilot still goes out then replace Thermocoupler. Can purchase at most hardware stores and all plumbing shops.
If this has been helpful please select a rating. Good Luck and have a Grt Weekend.
Posted on Apr 02, 2010
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