Page 1 of 12 1234567811 ... LastLast
Results 1 to 13 of 154
  1. #1
    Join Date
    Jan 2005
    Posts
    38
    Post Likes

    Honeywell T6 Thermostats

    Installed a couple of Honeywell TH6320U2008 thermostats on Rheem heat pumps, both failed within a couple of days, voltage from thermostat to reversing valve varies from 5-23 volts which wont keep valve energized. All other control voltage is dead on 26 volts. All new control wire to both. Have since replaced with some Emerson thermostats and have had no further issues. Just curious if others have seen this issue with any of the T series line.

  2. #2
    Join Date
    Jan 2012
    Location
    Broomall, PA
    Posts
    2,788
    Post Likes
    Did you have the common hooked up? Seems odd that both failed. Did you buy them both at the same time/same place?
    If I do a job in 30 minutes it's because I spent 30 years learning how to do that in 30 minutes. You owe me for the years, not the minutes.

  3. #3
    Join Date
    Jan 2005
    Posts
    38
    Post Likes
    Thread Starter
    Always have a common. Both were purchased at same time. We buy them 4-6 at a time usually, but usually are using them in straight ac with gas furnace application.

  4. #4
    Join Date
    Sep 2007
    Location
    State College, PA
    Posts
    2,781
    Post Likes
    I have not seen this problem in the dozen or so I have installed. Almost all heat pumps.

    I still prefer the Honeywell 8000 series.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


    Please view site rules: http://hvac-talk.com/vbb/showthread.php?t=1241

    Apply for Pro Membership: http://hvac-talk.com/vbb/showthread.php?t=116113

    Find your local HVAC-Talk Contractor: http://hvac-talk.com/aop

  5. Likes P.Hank, shavedneon liked this post
  6. #5
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    8,020
    Post Likes
    I sell a shitload of them and rarely have warranty claims
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  7. #6
    Join Date
    Jan 2005
    Posts
    38
    Post Likes
    Thread Starter
    1st ones I have had any issues with. Just kinda odd to have 2 in the same house fail the same way. Just thought someone else may have seen a issue similar. I am no a big fan of the stab-lock wire connections, but I know most thermostats are moving that direction.

  8. #7
    Join Date
    Aug 2008
    Location
    Hibbing, MN
    Posts
    707
    Post Likes
    I put in tons of these and have not had a problem until last month. New furnace with heat pump. New wiring and T-6 thermostat with 3 heat, 2 cool. Furnace board kept blowing the 3amp fuse. It turned out to be a direct short in the thermostat. Put a different Honeywell statin, and problem solved.
    If God didn't want us to eat animals... He wouldn't have made them out of MEAT.

  9. #8
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
    Posts
    532
    Post Likes
    We sell a ton of the t series and have not had any problems. Our only warranty replacement was a misdiagnosis and the stat was fine.

    Sent from my rotary telephone using Tapatalk

  10. #9
    Join Date
    May 2018
    Location
    Elizabethtown, PA
    Posts
    79
    Post Likes
    There is a bad batch of T6's. We had five in a row that wouldn't run heat pumps. All our problems were on dual fuel systems but bench testing showed that that wasn't the only issue. Honeywell replaced (upgraded) them through our distributor.

  11. #10
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
    Posts
    532
    Post Likes
    I am glad to hear they took good care of you that is the important thing.
    Quote Originally Posted by Rovert View Post
    There is a bad batch of T6's. We had five in a row that wouldn't run heat pumps. All our problems were on dual fuel systems but bench testing showed that that wasn't the only issue. Honeywell replaced (upgraded) them through our distributor.
    Sent from my rotary telephone using Tapatalk

  12. #11
    Join Date
    Jan 2005
    Posts
    38
    Post Likes
    Thread Starter
    Both of these were duel fuel applications

  13. #12
    Join Date
    Nov 2008
    Location
    Piney Flats, Tn.
    Posts
    1,975
    Post Likes

    th6210u2001

    we had one this week. Installed for 8 days on goodman heat pump. would not bring on the contactor, auxiliary or emergency heat. Fan would run no problem. The voltage would fluctuate between 5v and 20v this did have a common connected.

  14. #13
    Join Date
    Dec 2012
    Location
    columbus, OH
    Posts
    6,868
    Post Likes
    Had my share of bad ones...


    Sent from my iPhone using Tapatalk

Page 1 of 12 1234567811 ... 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
  •