water heater pilot light

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  #1  
Old 07-30-14, 06:25 AM
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water heater pilot light

When I release the pilot button, I lose all flame.
 
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  #2  
Old 07-30-14, 06:52 AM
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Make and model number of the unit?
You probably need a new thermocoupler.
 
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Old 07-30-14, 04:24 PM
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Agree with Tom. Most repairmen would just replace the thermocouple - a few bucks at a hardware store, assuming yours is the usual standard type. Get one of sufficient length. A simple DIY project, or call a serviceman, and pay $100 or so. Thermocouples seem to last only about 10 years.

If it isn't the thermocouple, then the only thing I can think of is the fuel valve, which is a horse of a different color.
 
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Old 07-30-14, 04:36 PM
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FYI you cant just replace the T couple by itself if its a newer heater. It comes as an assembly. This is because some have safety features built into them such as fusible links and/or thermal switches built into the t couple..


You can be creating a possible saftey hazard try to intall a regular t couple and the unit does not call for it..


Post make and model please as was asked previously..
 
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Old 07-30-14, 04:41 PM
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Example.. Here is an AO smith pilot assembly.. Igniter, pilot tube, a t couple all in one.. This T couple has a resettable thermal switch that will shut the gas down in case of overheat condition...

You cannot replace with an off the shelf t couple.


 
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