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1987 ruud model uguh-075a-er pilot won't stay lit

Replaced thermocouple but pilot won't stay lit

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Posted on Jan 02, 2017

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SOURCE: pilot light will not stay lit on model 465FX-R

It is possible that gas valve is bad, however, try replacing the pilot orifice located in the pilot assembly. If the flame is inadequate it will not generate the voltage required in the thermocouple. Pilot orifices are less than $10 and can be found at your local heating contractor's parts counter. Bring in the orifice to match.

Posted on Oct 03, 2009

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SOURCE: 1990 Triple E mobile home

I've a similar problem and a new thermocouple solved it

J. N. Millet, Alberta

Posted on Jan 14, 2011

  • 1015 Answers

SOURCE: Pilot won't stay lit, replaced thermalcouple but

I would remove pilot light assembly and clean orifice and blow out gas line to pilot. Check to see that thermocouple is centered in pilot flame. It is possiblethat your gas valve is bad but it is also possible that you got a defective thermocouple. I would change the thermocouple again as they are much less expensive then the gas valves. The next time when you are sure you have the thernocouple mounted as close to the center of the pilot flame hold the pilot button down for several mins. If none of this works then you may have to change your gas valve.Thank you.

Posted on May 06, 2011

jturcotte
  • 8514 Answers

SOURCE: The pilot light on my

Hi, with a new thermocouple, the only other thing it can be is the valve. Replace the valve.

Posted on Sep 03, 2011

  • 125 Answers

SOURCE: water heater pilot light will not stay lit.

Hold the pilot button down for a full minute after it lights, then release. If this does not work then the thermocouple is not adjusted where the flame is heating it or you just have a faulty new thermocouple.

Posted on Sep 06, 2011

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Thermocouple is good if the pilot stays lit continuously.

501 is older model. Unknown if this unit has FVIR protection and sealed combustion chamber or open air intake on front of unit.
http://waterheatertimer.org/pdf/Reliance-2006-Service-Handbook.pdf

With FVIR protection:
Get more fresh air to the unit.
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http://waterheatertimer.org/How-to-test-water-heater-thermocouple.html
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Water heater pilot light will not stay lit. changed the thermocouple, and still won't stay lit.


Hold the pilot button down for a full minute after it lights, then release. If this does not work then the thermocouple is not adjusted where the flame is heating it or you just have a faulty new thermocouple.

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Hi, with a new thermocouple, the only other thing it can be is the valve. Replace the valve.

Sep 03, 2011 | Heating & Cooling

1 Answer

Pilot won't stay lit, replaced thermalcouple but


I would remove pilot light assembly and clean orifice and blow out gas line to pilot. Check to see that thermocouple is centered in pilot flame. It is possiblethat your gas valve is bad but it is also possible that you got a defective thermocouple. I would change the thermocouple again as they are much less expensive then the gas valves. The next time when you are sure you have the thernocouple mounted as close to the center of the pilot flame hold the pilot button down for several mins. If none of this works then you may have to change your gas valve.Thank you.

May 06, 2011 | Rheem Water Heaters

1 Answer

I have a readyheater model 65-85 the flame will not stay lit im thinking thermal couple is there a way to test this part? or could it be another problem?


If your pilot light will not stay lit when you release pilot light button then chances are that your thermocouple is bad. Make sure that the tip of thermocouple is directly in line with pilot light. Tip of thermocouple should be cherry red if it is properly placed. If pilot will not stay lit then replace it. If you aren't sure about placement of thermocouple you can heat thermocouple with a seperate heat source. If you do this and pilot light stays lit then reposition thermocouple in pilot flame. If it still won't keep pilot burning then replace thermocouple. Hope this helps. Thanks.

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