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  1. #14
    Join Date
    Jan 2005
    Posts
    42
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    Thread Starter
    I will probably stay away from them for awhile then.

  2. #15
    Join Date
    May 2014
    Location
    Bay Area California
    Posts
    25,864
    Post Likes
    I've installed more than I can remember in commercial applications. Had one fail a day or two later, fan wouldn't come on. Think I had another fail, but can't remember what or why. It's still my normal economical truck stock stat.
    I do a triple evac with nitro to remove non condensables.

  3. #16
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
    Posts
    1,019
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    Same here you get a bad one every once in a while of almost anything.

    Sent from my rotary telephone using Tapatalk

  4. #17
    Join Date
    May 2016
    Location
    Montreal,canada
    Posts
    24
    Post Likes
    I had 2 fail on me within 6 months of installation: First one thermostat button were unresponsive to anything and after removing thermostat and battery for one week, put back the battery and seem to work but did replace since i dont trust it. Second one after big wind and lot of power surge thermostat lost ALL config and went back to default config.

  5. #18
    Join Date
    Apr 2006
    Location
    Houston, Texas
    Posts
    30
    Post Likes
    Thanks for the info . We use them on all of our heat pump installs. Will keep a look out for problems, but, none so far

  6. #19
    Join Date
    Aug 2009
    Location
    Rhode Island
    Posts
    41
    Post Likes
    we have also had to replace a fair amount of t6

  7. #20
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
    Posts
    1,019
    Post Likes
    You know now that I think about it I think we've had problems on heat pump installs too but if I remember correctly the problem turned out that we were running all of the power through one safety and it just added up to too much amp draw all we had to do is switch the safeties to just shut off the condensing unit instead of the red wire to the thermostat and we never had the problem again. It may not be related to what you all have had but it does seem somewhat similar. Anymore if it's a T6 or T10 I wire the safety between the condensing unit and the thermostat because I don't want that little bit extra voltage drop before the thermostat. Seems to have taken care of the only problems I've had with the t series.

    Sent in a state of increasing entropy using Tapatalk

  8. #21
    Join Date
    May 2018
    Location
    FLORIDA
    Posts
    289
    Post Likes
    never had problems with T6
    Visit our website at www.airconcomfortcooling.com

  9. #22
    Join Date
    May 2006
    Location
    Austin, Texas
    Posts
    567
    Post Likes
    I am on jobsite now. Two furnaces not functioning. 27 volts R to C. 12 volts W to C. Jumper thermostat and both furnaces fire up.

  10. #23
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    32,121
    Post Likes
    I installed four yesterday. I get a call today: three have failed.

    I go to the supply house down on Spring Garden st, and they have three available.

    None of them connected R to W1 when the display says "HEAT ON." I tested them right there at the counter.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







  11. #24
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
    Posts
    1,019
    Post Likes
    I dont think that is a valid test unless you hooked it up to 24 volts but i could be wrong.
    Assuming that you are referring to the t4.

    Sent in a state of increasing entropy using Tapatalk

  12. #25
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    32,121
    Post Likes
    Oh, its a valid test alright. The fourth stat that was heating the space passed it on the counter at the client's store.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







  13. #26
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
    Posts
    1,019
    Post Likes
    Ok i must have been thinking wrong.

    Sent in a state of increasing entropy using Tapatalk

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