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 06-05-2007, 09:29 PM   #1
Newbie
 
Join Date: Jun 2007
Posts: 2
Share |
Question

Main Fan Won't Kick On


I have a Comfortmaker furnace and the main fan won't kick on. There was a smell like rubber burning and I could hear the fan humming like it was trying so I took off the cover and manually clicked the safety switch (the one the cover activates when it is in place) several times. When I clicked the switch down (completing the circuit as if the cover were in place) a piece of electrical equipment, barrel shaped about 1.5" in diameter and about 2" long with two wires coming out of it and leading into the squirrel cage, began to burn brightly (almost as bright as an ignitor) and the burned rubber smell was apparent again. That's when the fan quit humming completely like it wasn't even trying anymore. Anyone know what that barrel shaped piece of electronic equipment is so I can go to the hardware store and get another? Furthermore, is it safe to say that that piece of equipment is the problem and not just a symptom of the real problem? Any help would be greatly appreciated. I have no air conditioning until I have a fan to circulate it!

Mavyak is offline   Reply With Quote
Old 06-05-2007, 09:50 PM   #2
weekend warrior
 
Join Date: May 2007
Location: ohio
Posts: 186
Default

Main Fan Won't Kick On


Quote:
Originally Posted by Mavyak View Post
is it safe to say that that piece of equipment is the problem and not just a symptom of the real problem?
I thought you were talking about a glowcoil or something... but you said it's airconditioning, so that's out of the question. When you say squirrel cage, you're talking about the blower housing? All I could think of "barrel shaped" is the capacitor but that's usually larger and wouldn't "glow". Sounds like something's shorted out and ready to burn the house down. Call a pro or post a pic so someone can help.

johnny331 is offline   Reply With Quote
Old 06-05-2007, 10:00 PM   #3
Newbie
 
Join Date: Jun 2007
Posts: 2
Default

Main Fan Won't Kick On


I just talked to a buddy of mine who does HVAC and he agrees that it's the capacitor. I just happened to be present to witness its final hour. I was, in fact, referring to the blower housing when I mentioned squirrel cage. I've already thrown the breaker to the furnace and am going to remove the burnt up capacitor and replace it tomorrow afternoon. Hopefully it's the root cause and not a symptom of a blown blower motor!

Thanks for the fast response!
Mavyak is offline   Reply With Quote
Old 06-05-2007, 10:29 PM   #4
weekend warrior
 
Join Date: May 2007
Location: ohio
Posts: 186
Default

Main Fan Won't Kick On


Quote:
Originally Posted by Mavyak View Post
Thanks for the fast response!
just passing the time at work, heh

You should have no prob getting a new capactor cheap. capacitors act like a battery storing energy but they allow a heck of a lot more current to flow at once, sort of like how you jump start a car...

motors need that because they're an inductive load, they appear almost like a dead short when they first start (which is why the lights dim for a sec) then as they start rotating a magnetic field is induced and the current is regulated.

more then you ever needed to know huh.

cool it's 11:30pm, I get to go home now.
johnny331 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
This doesnt seem right. JoulesWinfield Electrical 27 07-26-2009 07:40 PM
Main disconnect breaker coyote556 Electrical 9 08-01-2007 04:52 AM
Jacking main beam/floor joists gshock Building & Construction 1 05-30-2007 08:17 AM
Arced main lug in service panel burgeke Electrical 4 11-02-2006 11:28 AM
Main Breaker panel question stagger19 Electrical 5 08-15-2006 03:57 PM




Top of Page | View New Posts

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