Coleman 7956A856 Won't stay lit.
Posted: Mon Oct 29, 2007 9:22 pm
Coleman Direct Vent Forces Air Furnace 7956A856
Originally I wasn't getting any gas out of the pilot to light. It just wouldn't light up. So I tried cleaning that little pipe and still didn't get anything. After that I went and replaced the valve.
Now with the new valve, I do get gas coming out that will light when I am holding down the pilot button. Even after holding it for several minutes a few times, it does not stay lit.
I have read other posts indicating that this could mean that the thermocouple wire isn't doing it's job of heating up and keeping the gas on feature working. Safety mechanism?
I am wondering how can I tell if a thermocouple wire is faulty or bad?
I know the end of it is pretty charred. Should I just brush it and see if it will conduct heat better that way?
Thanks in advance for any help.
Originally I wasn't getting any gas out of the pilot to light. It just wouldn't light up. So I tried cleaning that little pipe and still didn't get anything. After that I went and replaced the valve.
Now with the new valve, I do get gas coming out that will light when I am holding down the pilot button. Even after holding it for several minutes a few times, it does not stay lit.
I have read other posts indicating that this could mean that the thermocouple wire isn't doing it's job of heating up and keeping the gas on feature working. Safety mechanism?
I am wondering how can I tell if a thermocouple wire is faulty or bad?
I know the end of it is pretty charred. Should I just brush it and see if it will conduct heat better that way?
Thanks in advance for any help.