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-   -   Burners won't light (http://www.diychatroom.com/f17/burners-wont-light-40001/)

sherben2 03-10-2009 01:30 AM

Burners won't light
 
Hi, I have a 1986 Trane furnace with a standing pilot light ( that is lit and stays lit), and the burners (3) will not ignite. We checked the thermostat and it seems to be fine, so we then replaced the thermocouple. Having read some online posts, we were sure this would fix the problem. It didn't. We have also replaced the fuse, which seemed okay. When the problem first started, we could hear a clicking from the electrical box (? in the furnace) when we would open the furnace door and hold the saftey switch to try and trigger the burners, now we don't hear that when the door is opened or we push the safety trigger on the door. Any ideas. Thanks.

The furnace is a: Trane model #blu080e92481
serial #s23550849
mfg date 06/86

Okay, I took the theromstat apart, there is only a red and white wire, I tried to "jump" the furnace and it would not go on.

sherben2 03-10-2009 12:51 PM

The furnace repair man was just here, he thought it was the gas valve. He replaced it turned the furnace on , but the burners did not go fire up. He messed with it some more and after tapping the new gas valve the burners kicked on. He said it was because it was new, and should not pose a futher problem. Heat is pouring out of our vents, yea. The part cost $97.00 dollars and he is sending us a bill for the 1 1/2 hour labor and travel time, yikes. :eek: But we DO have heat.:thumbsup:

DangerMouse 03-10-2009 01:00 PM

i bet it's going to happen again...... when he tapped, he also 'tapped' the pressure switch, which i am betting is the REAL culprit.
but what do i know?

DM

sherben2 03-10-2009 02:31 PM

Quote:

Originally Posted by DangerMouse (Post 242702)
i bet it's going to happen again...... when he tapped, he also 'tapped' the pressure switch, which i am betting is the REAL culprit.
but what do i know?

DM


DangerMouse,

The furnace repair man checked the gas pressure before he tapped on the valve, and the pressure was zero. That is why he thought it was just sticking a little, because it was new. The pressure switch had voltage. But, you never know...he said he'd come back if there was a problem.

Thanks

DangerMouse 03-10-2009 04:04 PM

well, it'd be the FIRST thing i'd check if it does it again....

DM

bl19811 04-02-2009 10:07 PM

I think it is time to upgrade your furnace, those standing pilots are not very energy efficient. It probably will just keep on giving you problems.


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