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


Thread Tools Search this Thread Display Modes
Old 02-02-2008, 02:22 PM   #1
Join Date: Feb 2008
Location: KansasCity
Posts: 2
Share |

Blower Motor Removal

I have a Lennox furnace that is sixteen years old. Afew days ago it began to act up intermittently. When the fan tried to kick on, it would hum. I put on a new capacitor but that did not fix it. I could get it to run by either spinning the fan then pushing on the safety switch or by putting the thermostat fan switch to the "on" position. Today, it got worse and worse and finally would not run at all. I went and bought a new motor and have the fan assembly removed but cannot get the motor to pull off. I have treated it with penetrating oil but there is not really a way to get any leverage.

Please tell me how to get this thing apart.

chemicalphil is offline   Reply With Quote
Old 02-02-2008, 06:31 PM   #2
biggles's Avatar
Join Date: Jan 2008
Location: Long Island
Posts: 3,630

Blower Motor Removal

i thinking that the motor is inside the squirrel cage and mounts with 3 screwss to the DEAD side of the fan section..with the motor still screwed down on the fan section remove the lock down screw on the open side that holds it down to the shaft.if the shaft has a flat on it put a small adjustable on it and turn the squirrel cage back and forth(reaching in the open part of the fan section it should spin with the spray on it.take some sand paper and give the exposed shaft a couple od swipes, NOW remove the mounting screws on the DEAD side that old the motor into the fan section a pull it out..going back in run some sandpaper in the squirrel cage opening where the shaft will go into(couple of sprays won't hurt)MOUNT the motor with the screws....LINING UP THE SQUIRREL cage.stand over the fan section and with your index fingers feel the inlet sides of the fan section inlets left and right and line the squirrel cage so there is somewhat of an even opening with those fingers.if there is any dirt or dust on the rounds of the squirrel cage run your fingers in there to clear them... i will check back after 8PM EST for any questions good luck

biggles is offline   Reply With Quote
Old 02-02-2008, 06:51 PM   #3
Join Date: Feb 2008
Location: KansasCity
Posts: 2

Blower Motor Removal

I ended up taking my propane torch and heating up the piece of the fan that slides over the shaft. Then I used a pointed rod that I held in the depression at the end of the shaft, held the whole assembly on the edge of ny bench so that the motor was not resting on anything and gave it a few good whacks with the hammer. That got it.
chemicalphil is offline   Reply With Quote

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
Comfortmaker blower intermittent problem jh44ny HVAC 12 07-31-2011 06:41 PM
Heat comes on but blower never does aczer HVAC 12 02-13-2011 06:57 AM
Looking for blower motor capacitor dditch66 HVAC 3 11-26-2007 07:35 PM
Blower control board mlmaher HVAC 1 11-24-2007 01:39 PM
Induction blower seal ktritz HVAC 4 03-05-2007 08:52 PM

Top of Page | View New Posts

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