TRANE PRESSURE SWITCH
Page 1 of 2 12 LastLast
Results 1 to 13 of 17
  1. #1
    Join Date
    Mar 2005
    Location
    Toronto, Ontario. Canada
    Posts
    93

    TRANE PRESSURE SWITCH

    TRANE TUX120C960D3. 3 CODE FLASH(PRESSURE SWITCH FAILURE)REMOVED VENTING FROM FURN TO NELIMINATE VENTING PROBLEMS AND MEASURED 0.4"WC NEGATIVE WITH NEW TUBING ATTACHED AND GAS OFF(NO OBSTRUCTIONS WHERE TUBING ATTACHES AT COMBUSTION BOX). SEEMS LOW AND AM GEARED TO LOOKING INTO A RESTRCTION OR CRACK. PRESS SWITCH WAS INTERMITTENTLY STICKING CLOSED AND FLAMES LOOKED OK WHEN VENTING WAS RECONNECTED SO IM KINDA LEANING MORE TOWARDS A CRACK RATHER THAN A RESTRICTION SINCE THERE WAS NO ROLL OUT. LOOKING TO FIND OUT WHAT PRESSURE DROP IS SWITCH LOOKING FOR? YES IM GONNA CHANGE PRESS SWITCH DUE TO ERRATIC OPERATION TOO

  2. #2
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,744
    Quote Originally Posted by chill factor View Post
    TRANE TUX120C960D3. 3 CODE FLASH(PRESSURE SWITCH FAILURE)REMOVED VENTING FROM FURN TO NELIMINATE VENTING PROBLEMS AND MEASURED 0.4"WC NEGATIVE WITH NEW TUBING ATTACHED AND GAS OFF(NO OBSTRUCTIONS WHERE TUBING ATTACHES AT COMBUSTION BOX). SEEMS LOW AND AM GEARED TO LOOKING INTO A RESTRCTION OR CRACK. PRESS SWITCH WAS INTERMITTENTLY STICKING CLOSED AND FLAMES LOOKED OK WHEN VENTING WAS RECONNECTED SO IM KINDA LEANING MORE TOWARDS A CRACK RATHER THAN A RESTRICTION SINCE THERE WAS NO ROLL OUT. LOOKING TO FIND OUT WHAT PRESSURE DROP IS SWITCH LOOKING FOR? YES IM GONNA CHANGE PRESS SWITCH DUE TO ERRATIC OPERATION TOO
    (Internet lesson 1: don't type in caps)
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  3. #3
    Join Date
    Mar 2005
    Location
    Toronto, Ontario. Canada
    Posts
    93
    Why you can't think outside the box JACKASS

  4. #4
    Join Date
    May 2004
    Location
    Salt Lake City/Tooele
    Posts
    2,415
    No doubt the pressure switch is acting erractically and is needing to be replaced. But need to first focus on why closing pressure is reading so low. Flue piping, pull inducer is there restrictions, heat exchanger, etc. Not worth while replacing the pressure switch when there is possibly other under lying issues that lead to the premature failure of the internal contacts of the switch.

    Then again, those POS pressure switches Coleman/Trane/York use from Costa Rica are crap, when it comes to the internal contacts gumming up.

  5. #5
    Join Date
    May 2004
    Location
    Frederick, MD
    Posts
    905

    Had one

    very similar to this. Hook your manometer up to the port where the tubing connects to the collector box and turn the just blower on. See if you get a reading. If so, your heat exchanger is cracked.

    Just for the record, trying to read something in all caps is very difficult for some people (me). We are here to try to help one another in this very difficult trade. The more information we have and can understand, the more help will be given by all. And please don't call people names.
    GO NAVY, BEAT ARMY!

    A DECADE OF DOMINANCE! +2

  6. #6
    Join Date
    Mar 2005
    Location
    Toronto, Ontario. Canada
    Posts
    93
    Sounds good gregp. Realized today from tech support that there is another pressure port hidden in behind pressure switch. Differential pressure of neg. 1.55" is what its looking for. Since that second hose that was in behind switch was still attached, it was at the greatest vacuum point of heat exchanger which kept switch closed and thru me for a loop since i didnt see tubing and port to tell me it was a differential switch. Anyways going tonight to see if that section of tubong has a restriction in it or if there actually is a crack.

    About Mr.Timebuilder, i took the way he delivered his comment as a rude, caulky, smart ass comment and i gave him what he deserved. If he were more diplomatic as you were, he wouldnt have painted that image of himself.

  7. #7
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,744
    Quote Originally Posted by chill factor View Post
    Why you can't think outside the box JACKASS


    Comment deleted.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  8. #8
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,744
    Quote Originally Posted by chill factor View Post
    About Mr.Timebuilder, i took the way he delivered his comment as a rude, caulky, smart ass comment and i gave him what he deserved. If he were more diplomatic as you were, he wouldnt have painted that image of himself.
    I was being diplomatic. I think you were projecting something that wasn't there. As a 50% Canuk, I know that even someone from Tranna knows not to type in caps on the internet.

    If you're worried about my image, I'm the son of a Mountie.

    And be caureful of Spell Check. It's "cocky," not "caulky."
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  9. #9
    Join Date
    Mar 2005
    Location
    Toronto, Ontario. Canada
    Posts
    93
    Good to see that your at least capable to guide someone in English grammar on this site.

  10. #10
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,744
    Quote Originally Posted by chill factor View Post
    Good to see that your at least capable to guide someone in English grammar on this site.

    We get a lot of that here.

    We try to help guys with that aspect of the business because so many work in residential, where the ability to communicate in writing on an estimate or an invoice can affect whether they get repeat business from that homeowner.

    I love spell check, but I have to read what it does closely, because it will suggest just about anything.

    Just in the past few days, a guy was trying to write "assembly," and spell check corrected it to read "Assyrian." Kinda funny to read that he had installed a new "Assyrian" to fix a blower problem.

    Welcome to the site. We have a lot of great info here. Get your post count up to 15 and apply for Pro membership.


    When you get access to the Pro section, you can get in-depth answers to tough questions.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  11. #11
    Join Date
    Aug 2003
    Location
    S.W. Ontario,Canada
    Posts
    622
    Quote Originally Posted by chill factor View Post
    Good to see that your at least capable to guide someone in English grammar on this site.
    man....oh......man.....have you got alot to learn..and not just in HVAC

  12. #12
    Join Date
    Jan 2011
    Location
    Boston, MA
    Posts
    459
    Quote Originally Posted by chill factor View Post
    Sounds good gregp. Realized today from tech support that there is another pressure port hidden in behind pressure switch. Differential pressure of neg. 1.55" is what its looking for. Since that second hose that was in behind switch was still attached, it was at the greatest vacuum point of heat exchanger which kept switch closed and thru me for a loop since i didnt see tubing and port to tell me it was a differential switch. Anyways going tonight to see if that section of tubong has a restriction in it or if there actually is a crack.

    About Mr.Timebuilder, i took the way he delivered his comment as a rude, caulky, smart ass comment and i gave him what he deserved. If he were more diplomatic as you were, he wouldnt have painted that image of himself.
    So what happend?

  13. #13
    Join Date
    Mar 2005
    Location
    Toronto, Ontario. Canada
    Posts
    93
    Time Builder and City Hvac, boy has this site changed. I've been a member almost 7yrs and dont remember attitudes like this. Skipping the real roots and getting ready for retirement eh, no more patience that sucks! I have 25 more years to hit 65 and i hope i wont even be 1/2 the men you guys seem to be. I've been around the block a few times boys, was just looking to see if you knew the answer for the pressure switch question being neg. 1.55" that thankfully a tech support guy was able to furnish. Oh ya you guys dont believe in tech support.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event