Hvac Blower Not Working In Cool Mode - HVAC - DIY Chatroom Home Improvement Forum


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

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

Reply
 
Thread Tools Display Modes
Old 10-11-2012, 10:52 AM   #1
Newbie
 
Join Date: Oct 2012
Posts: 1
Rewards Points: 10
Default

Hvac blower not working in cool mode


I have a carrier FB4BNF030, My blower seems to work fine while in the heat mode, but nothing in the cool mode. I recently replaced the outside power shutoff for the A/C, thinking that was the problem, but it still don't work. The outside unit comes on compressor, fan... Fan doesn’t run in the on mode, doesn’t run when jump to the "G" wire. Can anyone give me some pointers?

Advertisement

modemjim1 is offline   Reply With Quote
Old 10-11-2012, 02:33 PM   #2
Member
 
biggles's Avatar
 
Join Date: Jan 2008
Location: Long Island
Posts: 3,630
Rewards Points: 2,000
Default

Hvac blower not working in cool mode


if you jump R to G on the board or off the subbase the hi speed winding is shot on the furnace....if you get low/med on the heating mode those speed windings and the cap are good....check the motor for a medium speed wire off the motor tag to get you thru the fall cooling if you need it...note the relay board might have 2 different relays one for LO fan heat and another for HI fan cool

Advertisement

biggles is offline   Reply With Quote
The Following User Says Thank You to biggles For This Useful Post:
modemjim (10-15-2012)
Old 10-15-2012, 10:34 PM   #3
Newbie
 
Join Date: Dec 2008
Posts: 4
Rewards Points: 10
Default

Hvac blower not working in cool mode


Thanks for your help. I'll try that. I'm out of town now, but will let you know how it goes.
modemjim is offline   Reply With Quote
Reply


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
HVAC Blower jb26jb1981 HVAC 4 08-03-2012 08:16 AM
HVAC Help* Blower Shuts off in AutoMode PRIMO30 HVAC 6 06-11-2011 09:20 PM
Wiring help on HVAC blower for Air Filtration oxicottin Electrical 0 03-20-2011 03:34 PM
Is there a way to have heat, cool and fan all on same blower speed? pirateo HVAC 4 08-14-2009 05:13 PM
RUUD furnace not working blower runs ddeatrick99@hotmail.com HVAC 2 01-16-2008 10:55 PM




Top of Page | View New Posts