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Old 01-20-2011, 04:26 PM   #1
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Changed spark igniter. Get pilot but gas never comes on...


I just changed the spark igniter in my Heil unit as the technician said this was my problem. Model # ntc5100bjc1. now i get a pilot light but the gas never seems to come on
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Old 01-20-2011, 05:21 PM   #2
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Changed spark igniter. Get pilot but gas never comes on...


check for 24v between p/m and m on the gas valve. Just to clarify you are saying the pilot does light and the main burner does not. If this is so, does the spark ignitor continue to spark after the pilot has lit?
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Old 01-20-2011, 08:41 PM   #3
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Changed spark igniter. Get pilot but gas never comes on...


the element stays lit the whole time. I don't hear any clicking after i see the light but i'm not positive on that. doesn't go off after the pilot comes on. also the pilot stays on as long as i let it.

check for 24v between p/m and m on the gas valve

can you tell me what this means please

thanks again for the help
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Old 01-20-2011, 08:47 PM   #4
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Changed spark igniter. Get pilot but gas never comes on...


well, after what you just wrote, I believe you have a honeywell smart valve gas valve. this is most likely the cause if the pilot does light and the hot surface ignitor does not shut off. Does the part you replaced look like this? IF you have this then you have hot surface ignition and not spark ignition, HUGE difference.

while the system is trying to light, move the connector around for the above picture. This may get the system to ignite
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Last edited by hvactech126; 01-20-2011 at 08:51 PM.
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Old 01-20-2011, 08:55 PM   #5
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Changed spark igniter. Get pilot but gas never comes on...


If he has the dumb valve. we know what the problem is


Looked up the mod #. It appears he has the s.v.

Last edited by kenmac; 01-20-2011 at 08:59 PM.
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Old 01-21-2011, 12:05 AM   #6
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Changed spark igniter. Get pilot but gas never comes on...


yes that is what i have. i did notice when i changed out the igniter that the wires were not in the same places as the previous one was so i used the old plug and spliced the wires from the new igniter to it. that got the igniter to work nothing after that
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Old 01-21-2011, 06:22 AM   #7
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Changed spark igniter. Get pilot but gas never comes on...


sounds like you have a bad splice on the black (flame signal) wire. I have never heard of having to splice these!!!!!!!!!!!! I've replaced a lot of those HSI's and have never had one with a wrong or miswired plug. is the hsi you bought OEM?
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Old 01-21-2011, 07:24 AM   #8
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Changed spark igniter. Get pilot but gas never comes on...


i will check that splice. website i bought it from says OEM but definatly not.
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Old 01-21-2011, 07:37 AM   #9
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Changed spark igniter. Get pilot but gas never comes on...


not the splice. checked and rechecked.
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Old 01-21-2011, 05:04 PM   #10
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Changed spark igniter. Get pilot but gas never comes on...


ive tired aftermarket ignitors on these before and they dont work very well. Replace with OEM!
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Old 01-21-2011, 05:43 PM   #11
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Changed spark igniter. Get pilot but gas never comes on...


Quote:
Originally Posted by verycold View Post
I just changed the spark igniter in my Heil unit as the technician said this was my problem. Model # ntc5100bjc1. now i get a pilot light but the gas never seems to come on

I m curious why you did not just let him do the repair?
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Old 01-22-2011, 08:37 AM   #12
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Changed spark igniter. Get pilot but gas never comes on...


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I m curious why you did not just let him do the repair?
Used to do the same thing years ago when making 10 cents an hour over minimum wage. Car would break down and couldn't afford for the mechanic to do the repairs but could pay the diagnostic to say exactly what was wrong then fix it myself. Sometimes the repair was going to be more then I had the skill or tools for so paying the mechanic was the only option. Walked to work and back for 6 months, 15 miles a day, back in 82 untill I could save enough for one repair. Life happens and you deal with it.
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Old 01-22-2011, 10:20 AM   #13
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Changed spark igniter. Get pilot but gas never comes on...


i just felt like paying 275$ plus an 85$ trip fee was ridiculous when i am perfectly capable of doing this myself. only thing that i should have done is get the OEM part from the start. i have just paid 50$ to realize that
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Old 01-22-2011, 10:31 AM   #14
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Changed spark igniter. Get pilot but gas never comes on...


can anybody add a link to the OEM part please. I don't want to purchase another problem. thanks
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Old 01-22-2011, 10:57 AM   #15
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Changed spark igniter. Get pilot but gas never comes on...


OEM smart valve ignition assy
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