DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > Cant figure this out! Not getting 24v at the board or thermostat




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 03-09-2013, 05:46 PM  
kok328
Moderator
 
Join Date: Nov 2007
Location: Grand Blanc, MI
Posts: 1,853
Liked 26 Times on 25 Posts
Likes Given: 11

Default

I'm pretty sure you've lost a leg of power on the 240V circuit and your meter is reading the backfeed from the remaining leg.


kok328 is offline  
 
Reply With Quote Quick reply to this message
Old 03-09-2013, 06:17 PM  
jayrod
Member
 
Join Date: Jan 2010
Posts: 33
Likes Given: 1

Default

Quote:
Originally Posted by kok328 View Post
I'm pretty sure you've lost a leg of power on the 240V circuit and your meter is reading the backfeed from the remaining leg.
That would make the transformer short out or go bad or whatever happened? Because Ive gone through 2 now. Original one and a new one.


jayrod is offline  
 
Reply With Quote Quick reply to this message
Old 03-09-2013, 07:54 PM  
kok328
Moderator
 
Join Date: Nov 2007
Location: Grand Blanc, MI
Posts: 1,853
Liked 26 Times on 25 Posts
Likes Given: 11

Default

It won't make it short out but, it would make it not produce 24V on the secondary.
Take either transformer (old or new) and hook it up to 120V using the white (neutral) and black (hot/120V) and test the secondary for 24V output. Chances are they both still work.
kok328 is offline  
 
Reply With Quote Quick reply to this message
Old 03-09-2013, 07:58 PM  
jayrod
Member
 
Join Date: Jan 2010
Posts: 33
Likes Given: 1

Default

Transformer doesnt work because I tried it on the working unit, and then that unit didnt work. No 24V. So either the Transformer was sold to me bad or I blew it.
jayrod is offline  
 
Reply With Quote Quick reply to this message
Old 03-09-2013, 07:59 PM  
jayrod
Member
 
Join Date: Jan 2010
Posts: 33
Likes Given: 1

Default

I'll still try that real quick


jayrod 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
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Board Games Austin General Chit-Chat 44 03-18-2013 09:53 PM
Rookie on board trok10 Introductions 1 11-12-2011 05:54 AM
Wet ceiling, trying to figure out what caused it tgillespie Walls and Ceilings 0 10-21-2009 09:16 PM
New to the board Barry M Introductions 1 09-30-2007 07:51 PM
Making a light board ( basicly like a sound board) for studio colepittman Electrical and Wiring 0 08-04-2007 02:27 PM