Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-09-2007, 01:27 AM   #1
Newbie
 
Join Date: Oct 2007
Posts: 8
Share |
Default

Help Please, Furnace won't turn on


hello everybody. I'm very new to the forum, and I'm here for help.

I have a Carrier natural gas furnace that won't turn on. Please allow me to describe how it normally works.

1. fan comes on for xx seconds
2. a metal stick thing (sorry not sure what it's called, but it's located right in front of where the gas comes in) turns yellow/orange
3. gas comes in, flames come up
4. Heat!

Problem:

the metal stick thing (sorry again about my lack of knowledge) won't turn yellow/orange.

I would guess I have some faulty/dirty parts that's not working properly. Could you tell me what this is? Is it model dependent? The furnace has a few labels on it but I don't see one that looks like a model number.

Should I just be able to take the part to a hardware store, get a new one and put it back on?

p.s. Is it safe to try to light the gas myself with a lighter/match when the gas comes on? I've seen people doing it to test if the furnace is working properly, but it does seem a little

Thank you for reading about my problem, any help and suggestions are appreciated.

Thank you.
lh0628 is offline   Reply With Quote
Old 10-09-2007, 02:32 AM   #2
Newbie
 
Join Date: Oct 2007
Posts: 8
Default

Help Please, Furnace won't turn on


I did some digging and took a couple of things off.

One is the thing that looks like that have ceramic coating on, it sits right in the middle of the two gas valces, a bit to the left, and it's connected to 2 white wires. I inspected the ceramic part, the middle part looks white (prob from heating up?) and also it seems to have a crack on one of the four stripes/twigs.

Another thing I took out looks almost like a hex tool, it's connected to a pink connector, sits right in front of the right gas valve. It also does look dirty.

I cleaned both with 400 grit sand paper, nothing to drastic. Put them back in. Now I forgot at which angle did the second thing sat in front of the gas valve. Does it matter where it sit?

Again thank you for your help.
lh0628 is offline   Reply With Quote
Old 10-09-2007, 02:52 AM   #3
Newbie
 
Join Date: Oct 2007
Posts: 8
Default

Help Please, Furnace won't turn on


I think the 1st thing I was talking about is called "hot surface ignitor"

It's the thing that normally glows, but right now after I turn the furnace on the blower fan comes on -> I hear a click -> I smell and hear gas gets released -> this repeats 3 times and then the furnace just stops (blower fan stays on though)
lh0628 is offline   Reply With Quote
Old 10-09-2007, 10:44 AM   #4
Member
 
Join Date: Aug 2006
Posts: 190
Default

Help Please, Furnace won't turn on


You gotta provide model number of your furnace in order for anyone here to be of any help.

But yes, looksl ike your ignitor is busted.

On a hunch: Is THIS it? If there is a crack anywhere along the ignitor, you need to order a new one.
scorrpio is offline   Reply With Quote
Old 10-09-2007, 10:55 AM   #5
Member
 
Join Date: Aug 2006
Posts: 190
Default

Help Please, Furnace won't turn on


And if the other part you are talking about looks like THIS, that's your flame sensor - you gotta put it back so its tip is in the flame when burner is on.
scorrpio is offline   Reply With Quote
Old 10-09-2007, 11:00 AM   #6
Newbie
 
Join Date: Oct 2007
Posts: 8
Default

Help Please, Furnace won't turn on


Quote:
Originally Posted by scorrpio View Post
You gotta provide model number of your furnace in order for anyone here to be of any help.

But yes, looksl ike your ignitor is busted.

On a hunch: Is THIS it? If there is a crack anywhere along the ignitor, you need to order a new one.
That is EXACTLY what it looks like, thank you! It does look like there's a small crack on it and I did touch it by hand and I sanded it

The other part I took off looks like THIS. I sanded this too and it looks ok. BUT when I put it back on I forgot at which angle it sat in front of the gas valve, I suppose it does matter how it sits? Would I just have to adjust the angle until the furnace works?

Thank you again for your help!
lh0628 is offline   Reply With Quote
Old 10-09-2007, 11:02 AM   #7
Newbie
 
Join Date: Oct 2007
Posts: 8
Default

Help Please, Furnace won't turn on


Quote:
Originally Posted by scorrpio View Post
And if the other part you are talking about looks like THIS, that's your flame sensor - you gotta put it back so its tip is in the flame when burner is on.
I was typing a reply while you wrote this

Got it, as long as the end is in the flame it's fine then
lh0628 is offline   Reply With Quote
Old 10-09-2007, 02:50 PM   #8
Newbie
 
Join Date: Oct 2007
Posts: 8
Default

Help Please, Furnace won't turn on


Turned out it was the hot surface ignitor, went and got one, installed everything back, now I have heat!

Very expensive though $75 compared to the link you provided... oh well can't wait for shipping.

Thank you for your help scorrpio!
lh0628 is offline   Reply With Quote
Old 10-09-2007, 03:07 PM   #9
Member
 
Join Date: Aug 2006
Posts: 190
Default

Help Please, Furnace won't turn on


You are welcome. $75 sounds a bit steep indeed, but glad your problem is fixed.
scorrpio is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Heil Furnace Burner Problem timothyr HVAC 79 02-12-2014 07:01 PM
Bryant Furnace main burner goes out after 5 seconds Da_Bears HVAC 8 01-03-2012 01:24 AM
Comfortmaker furnace won't turn on steelframe8459 HVAC 36 11-30-2011 03:22 PM
no heat when turn furnace on atl HVAC 1 10-24-2006 12:38 PM
Furnace stops working once a day - help Da_Bears HVAC 2 01-26-2006 01:19 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.