furnace issues

[01darkblueTA]

My furnace kicks in and then it never ignites it just blows cold air. Its a Trane XL80, I opened the inspection panel and the red light is blinking slowly. I did this last night and it just kicked in and ignited. It won't tonight, any ideas?

[shock13]

http://www.doityourself.com/forum/archive/index.php/t-373598.html

[95 whitestang]

Flame sensor?

[01darkblueTA]

http://www.doityourself.com/forum/ar.../t-373598.html

thats pretty much what its doing. hrmmm, maybe i'll try cleaning the flame sensor and see what happens. i watched it ignite and then go off like 8 times.

[Akromix]

If that's the case either flame sensor or thermocouple could be bad. Grainger stocks them.

[TitaniumGT]

home warranty?

[01darkblueTA]

If that's the case either flame sensor or thermocouple could be bad. Grainger stocks them.

If i'm reading it correctly it doesn't have a thermocouple

[01darkblueTA]

home warranty?

Yes. I don't think this will be worth the $100 deposit, yet.

[jjhirsch]

A quick fix i have herd is to used a dollar like sand paper on the sensor.

happened to us at our old place and it worked but only would fix it for a few weeks.

[TitaniumGT]

tru. everytime I used mine it was a $100 bill exactly.
LOL

[01darkblueTA]

tru. everytime I used mine it was a $100 bill exactly.
LOL

[Gipper]

If i'm reading it correctly it doesn't have a thermocouple

Thermocouples were typically used in older system with pilot lights. A modern system with electronic ignition wouldn't need a thermocouple.... they use flame sensors.

[01darkblueTA]

A quick fix i have herd is to used a dollar like sand paper on the sensor.

happened to us at our old place and it worked but only would fix it for a few weeks.

Haven't even took it apart yet. What is the sensor made of?

[octanehuffer]

Need me to keep you warm?

[95 whitestang]

A flame sensor is about $12 or so and is an easy fix. Worth a shot anyhow.