new thermo couplerinstalled, and now pilot won't say lit.


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Old 01-21-11, 12:43 PM
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new thermo couplerinstalled, and now pilot won't say lit.

tried repeated flushing. any ideas i have not tried?
 
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Old 01-21-11, 01:13 PM
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What kind of unit? Make and model please.

Make sure the brass fitting for the t coupler at the gas valve is in all the way and snug. Also is the pilot end of the t coupler engulfed in the pilot flame? Are you holding down the pilot button long enough? Follow the lighting instructions.

Mike NJ
 
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Old 01-21-11, 02:58 PM
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make/model : American mor-flow G51-40t34-3PV
LP
I checked the T coupling to Gas Valve.. loosened and checked snugness of tube.. tube was all the way snug to top.. tightened and retried...

flame strogn over the Thermo tip with button depressed.. held for 2 minutes/

still no pilot when releasing the pilot button..
 
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Old 01-21-11, 03:07 PM
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can the gas valve be unscrewed and cleaned/serviced with any results??
 
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Old 01-21-11, 03:18 PM
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Try another thermocouple. If still does not work the the thermostat ECO switch is open and the gas valve will need to be replaced.

If your getting flame at the pilot and it will not stay lit there is nothing else to clean. It is one of the two above.

Mike NJ
 
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Old 01-21-11, 03:22 PM
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thanks for the help Mike. Much appreciated.
 
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Old 01-21-11, 06:06 PM
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Originally Posted by NEC_HELP
make/model : American mor-flow G51-40t34-3PV
LP
I checked the T coupling to Gas Valve.. loosened and checked snugness of tube.. tube was all the way snug to top.. tightened and retried...

flame strogn over the Thermo tip with button depressed.. held for 2 minutes/

still no pilot when releasing the pilot button..
You may have a control problem. I know Mor-flo controls would fail after pilot was turned off. It is my understanding they used some sort of mechanical linkage between the button you press and the power unit. Something goes amiss. How old is your tank? I'm speaking from experience from about 10-12 years ago. I believe it was Home Depot that sold them at the retail level.
 
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Old 01-22-11, 10:03 AM
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i put back the old thrmal coupling.. and the heater fired up.. but with the same problem of only staying on for a couple of minutes.. hot water lasts for 1 minute...

at least now I know the Gs valve is working , the new Thermal coupling did notwork with the gas valve at all.,, i will get a couple more and see if any oth them will work,, ( save time by buing several on my trip to Home depot )...and see if they work.. if they don't work..

then what can i try?
 
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Old 01-22-11, 02:00 PM
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I would say its the gas valve. And if its a mo'flo' its old and replace it. Ao smith I like. Bradford whites next. I would not throw money at it.

Mike NJ
 
 

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