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Furnace - Shutting down

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  • Feb 3rd, 2015 3:41 pm
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[OP]
Newbie
Dec 29, 2008
15 posts
1 upvote

Furnace - Shutting down

Hello, Wondering if someone can help me.

Furnace is shutting down on some nights, It is a brand new keeprite. (3 weeks old)

The code is a 6 or a 6.1 - which is a flame sensor code.

When it fires up everything works with no issues. Then you will hear some noise like the air in the intake is blowing radically and then finally cuts the flame. I think the furnace shuts off via safety from the flame getting blown out from that air. When i take the cover off and it gets intake air from the house, there are no issues.

I think the issue is related to the intake air and that its wind blowing over the intake. Any suggestions on how to rectify this? What is the code for this line? It looks like a 2" pvc pipe going out and immediately has a elbow pointing to the ground about 12" above the ground.

The other houses on the street are about the same.
The manual shows the same configuration as well.

The exhaust goes up about 3ft and exits on a 45, then it is running it puts out a lot of steam which seems normal especially during these cold nights.
8 replies
Deal Expert
User avatar
Sep 1, 2005
19037 posts
13895 upvotes
Markham
If it's new...why not contact the installer?
We're all bozos on the bus until we find a way to express ourselves...

Failure is always an option...just not the preferred one!
Member
Jul 14, 2012
335 posts
143 upvotes
Hamilton
Check that your vents outside aren't covered in snow, or the intake isn't frosted over.
[OP]
Newbie
Dec 29, 2008
15 posts
1 upvote
I will try to snake the vents. The installer did reuse the pvc vent pipes.

The installer is looking into it but meanwhile i would like to stop taking fresh air from the house... its burning heated air right now and makes my basement cold.
[OP]
Newbie
Dec 29, 2008
15 posts
1 upvote
I would assume it is the intake that has the malfunction since running with the cover off (aka taking fresh air from the basement) it runs without a flinch.

The odd thing is the pipe is literally 8ft long maximum and has 2 elbows on it. It doesn't get simpler than that.
Deal Addict
User avatar
Jun 12, 2008
3463 posts
1031 upvotes
Ancaster
Android412 wrote: Check that your vents outside aren't covered in snow, or the intake isn't frosted over.
+1 on this......when mine get covered in snow, the furnace goes through it's firing up cycle then turns off.

Guess its a safeguard to stop exhaust fumes from getting back into the house.
Deal Expert
Aug 22, 2011
38489 posts
24711 upvotes
Center of Universe
Something is odd.
By taking off the furnace cover, it doesn't block the air intake from the vent?
If anything, it's pulling air from two sources now.
[OP]
Newbie
Dec 29, 2008
15 posts
1 upvote
When you take the top cover off, the furnace is operating 100% with safety features but taking air from the atmostphere, not outside.

[IMG]http://www.furlonghvacservices.com/uplo ... ment52.jpg[/IMG]

This furnace does not have a enclosed firebox to separate the burners like some other furnaces. It is exposed with the cover off.
It is weird when i saw it first, i was concerned as well, you can see the flames going into the heat exchanger.
Deal Addict
Feb 22, 2007
2040 posts
276 upvotes
Mississauga
put the covers back on and take out your filter....see if it runs fine....
if it does...then it is your filter!

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