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


Thread Tools Search this Thread Display Modes
Old 01-10-2011, 03:25 PM   #1
Join Date: Jan 2011
Posts: 2
Share |

Slight humming noise.

Have a Coleman forced air furnace in a 1985 mobile home. The blower motor died, I replaced it with a new one that required a starter capacitor. It heats up, cycles, cools down and shuts off...While it's off there is a barely audible slight humming noise coming from somewhere below the blower motor.
I wouldn't think there should be any humming? What could the problem be?


wjconrad is offline   Reply With Quote
Old 01-10-2011, 04:18 PM   #2
Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 8,919

Slight humming noise.

Control transformer that changes the power from 240 volts to 24 volts for the thermostat to use. They hum and that is normal. Just never noticed it B4.

"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Old 01-10-2011, 06:20 PM   #3
Join Date: Jan 2011
Posts: 2

Slight humming noise.

Thank You very much.
wjconrad is offline   Reply With Quote
The Following User Says Thank You to wjconrad For This Useful Post:
seasoldier (12-01-2011)

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
Installed New Ceiling Fan But makes Humming Noise evol200 Electrical 3 10-19-2010 06:30 AM
Humming noise when air handler turns on redfish99 HVAC 1 08-24-2010 11:44 AM
Noisy furnace (with recording of noise) Jeffrey HVAC 3 01-23-2010 01:17 PM
Trane 1100 XE- Outside unit making humming noise Momof2 HVAC 0 09-03-2009 11:25 AM
Loud humming noise from electric forced air furnace MissBehavin HVAC 9 01-02-2009 05:14 PM

Top of Page | View New Posts

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