Blower Not Kicking In - HVAC - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 12-10-2009, 09:29 AM   #1
Join Date: Dec 2009
Posts: 1
Rewards Points: 10

Blower not kicking in

My blower is not kicking in.
I have a Lennox G4OUH-48B-090-11 S/N 5905K83441

What are the troubleshooting steps I need to take in order to define the problem?


Appalachian is offline   Reply With Quote
Old 12-10-2009, 10:20 AM   #2
Join Date: Nov 2006
Posts: 291
Rewards Points: 250

The first step is to get the manual/wiring diagram. (maybe someone here can get you one).

The next step is to start tracing circuits starting with the control from the thermostst, low voltage, control board fuse and any safety lockouts.

If the above looks good, then move on to motor voltages and capacitor.

There are lethal voltages involved. If you're not comfortable then hire a pro.


hennyh is offline   Reply With Quote
Old 12-10-2009, 06:40 PM   #3
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000

Need to check for 120 volts to the motor from the circuit board when the fan should be running. No voltage then you have a bad board, 120 volts present then you have a bad motor or capacitor.

I believe all those parts are still under warranty based on your serial number. Might be better to call the lennox dealer out to get the parts for free and pay the labor.

Last edited by Marty S.; 12-10-2009 at 06:45 PM. Reason: added info
Marty S. is offline   Reply With Quote

Thread Tools
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
Inside Blower motor keeps running crawlerchris HVAC 1 12-19-2009 08:01 PM
Carrier 58MXA Wiring Blower Switch 63012753 HVAC 0 10-06-2009 09:09 PM
AC blower short cycling-works on heat though Steve60007 HVAC 14 06-22-2009 04:00 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1