DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > Trane XR90 - Pressure Switch




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 10-31-2011, 08:33 PM  
hvactechfw
Professional
 
Join Date: Mar 2011
Location: Fort Wayne, IN
Posts: 66
Default

that is not a capacitor it is a limit switch!!!!!!!!!!!!!!!!!!!!!!


hvactechfw is offline  
 
Reply With Quote Quick reply to this message
Old 10-31-2011, 09:08 PM  
paul52446m
Senior Member
 
Join Date: Oct 2010
Location: Houghton Lake, Mi.
Posts: 435
Liked 1 Times on 1 Posts

Default > Trane XR90 - Pressure Switch

Quote:
Originally Posted by hvactechfw View Post
that is not a capacitor it is a limit switch!!!!!!!!!!!!!!!!!!!!!!
Glad you pointed that out, My mistake Paul


paul52446m is offline  
 
Reply With Quote Quick reply to this message
Old 10-31-2011, 11:06 PM  
gerrycurl21
Junior Member
 
Join Date: Oct 2011
Posts: 7
Default

Figured it out, pull limit switch from old inducer and transfer it over, and to remove the female ends from the old inducer, I had to take a small blade into the connector and lift a small tab up to pull out the female end.

Everything is up and running now. New inducer creates pressure in the burner area which runs through the hose to the pressure switch. This turns on the ignitor to glow red for a lil bit and then the gas valve being connected to the pressure switch and burner area finally open allowing gas into the burner area igniting the furnace.

Learned a ****load about furnaces in 2 days and finally got heat.

Thx for your assistance, so glad I didn't have to replace the valve. Messing around with natural gas makes me antsy and I'd probably pay 3x as much to get it install by a tech
gerrycurl21 is offline  
 
Reply With Quote Quick reply to this message
Old 11-10-2011, 08:20 AM  
thanksagain
Junior Member
 
Join Date: Nov 2011
Posts: 6
Default

Hi, I'm new here and don't know how to post but Ive been reading this thread,

Someone mentioned the Open High Limit Switch on a Trane XE 90, (LED blinking 4 times) I think thats whats wrong with my unit, where is the limit switch located? There are two wires going to a sensor on the fire chamber but no reset switch, might that be it, do I replace it, just unscrew it and put a new one in? If it's not resettable.
thanksagain 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
Trane XE 90 pressure switch eddie HVAC 61 03-11-2013 06:20 PM
Trane XR90 - Pressure Switch gerrycurl21 HVAC 0 10-30-2011 10:49 PM
Trane XE90 - pressure switch error (with pic) FmrLCpl HVAC 5 10-26-2011 10:44 AM
Trane XE 90 pressure switch ldpfeifer HVAC 1 02-27-2011 07:29 AM
Trane xe 90 led indicates pressure switch jskalic HVAC 1 11-29-2007 10:38 PM