DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > evaporator fan quit today




Reply
 
Thread Tools Search this Thread Display Modes
Old 08-03-2008, 08:45 PM  
paul s
Junior Member
 
Join Date: Aug 2008
Posts: 2
Default evaporator fan quit today

Need help, Evaporator fan should come on minutes before the compressor starts, but now the fan does not start until the compressor starts and then it moves only a small amount fwd and reverse. found a loose line wire at the breaker in the air handler, tightened it but did not help. can anyone give me some ideas. thanks



__________________
paul s is offline  
 
Reply With Quote Quick reply to this message
Old 08-04-2008, 12:16 PM  
glennjanie
Senior Member
 
Join Date: Mar 2006
Posts: 2,990
Liked 2 Times on 2 Posts

Send a message via AIM to glennjanie
Default

Welcome Paul:
Check to see if there is a capictor on the fan motor. If there is you can check it by removing the wires from it, using an audible ohmmeter touch both the contacts on the capicitor, your ohmmeter should go immediately to a high whistle or whine and taper off to a low pitched sound.
See if the fan turns freely with the power off. Follow all the wires to the fan and make sure they are all connected. If the unit is over 10 years old you may need a new motor, take the old one with you when you shop for a new one.
You may want to try United Refregeration, Grainger or ebay.
Glenn



__________________
glennjanie is offline  
 
Reply With Quote Quick reply to this message
Old 08-04-2008, 07:25 PM  
paul s
Junior Member
 
Join Date: Aug 2008
Posts: 2
Default

Thanks for the info, The unit is only a couple of years old. cant see any start copacitor. motor has about 20 wires going to it. it is a trane unit with variable speed. there is a circut board with a bank of dip switches on it and 4 green lights. one green light labled cfm blinks continously. maybe this is a troubleshooting clue. I need to find someone who knows this unit. thanks again.

__________________
paul s is offline  
 
Reply With Quote Quick reply to this message
Old 08-05-2008, 03:48 PM  
glennjanie
Senior Member
 
Join Date: Mar 2006
Posts: 2,990
Liked 2 Times on 2 Posts

Send a message via AIM to glennjanie
Default

Hello Paul:
See if you can find the Trane dealer that installed the unit; it should be under warranty. Your problem is in the computer board and they will have the key to the blinking lights.
Glenn

__________________
glennjanie is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

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


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Already asked 50 times today I am sure wolfenstien Flooring 15 04-03-2008 09:15 PM
Technology Today PaPaDan Electrical and Wiring 0 03-25-2006 11:52 AM

Newest Threads

LATEST SPONSOR DEALS