Results 1 to 10 of 10
  1. #1
    Join Date
    Oct 2001
    Location
    Vancouver Island BC Canada
    Posts
    146

    Confused York Affinity/AVY with Honeywell T8320 programmable stat

    Having a problem with the electric heater and indoor fan remaining energized after the demand for heat is met (set point 72.... indoor temp shot up to 84) and even when the mode is switched to off and the fan set to auto. Only way to stop is kill the main power to air handler,when power is restored normal operation is resumed. This happened last year as well at the first cold snap, my apprentice attended that call and we concluded it was the stat. It was changed out and not a problem for the remainder of the heating season. Fast forward to this heating season, now a couple of months into it, no problem, first real cold night same issue has occurred again. heat pump off, tstat off,heaters energized /fan on and overheated home.


    Anyone experience this sort of thing? will be attending in person to sort out

  2. #2
    Join Date
    Sep 2010
    Posts
    67
    How did you determine it was the Tstat. Did you use a meter to see if Stat was calling for heat? Probably heat sequencer sticking.

  3. #3
    Join Date
    Mar 2010
    Location
    Arnold, Mo
    Posts
    396

    Sequencer.

  4. #4
    Join Date
    Oct 2001
    Location
    Vancouver Island BC Canada
    Posts
    146
    Ohio tech

    I cannot recall how we came to that conclusion as it was a year ago and TS over the phone no fun . Whether or not there was still a call for heat after the the unit was shut off I just cannot remember. I was thinking sequencer myself but was wanting other input as well. I will be taking another heat pack out there with me

  5. #5
    Join Date
    Jul 2007
    Location
    New Jersey
    Posts
    3,031
    Quote Originally Posted by JBocc View Post
    Ohio tech

    I cannot recall how we came to that conclusion as it was a year ago and TS over the phone no fun . Whether or not there was still a call for heat after the the unit was shut off I just cannot remember. I was thinking sequencer myself but was wanting other input as well. I will be taking another heat pack out there with me
    the stuff on your service truck should be sufficient, why replace a heat pack when it's probably the relay
    “If I have seen further than others, it is by standing upon the shoulders of giants.” ~ Sir Isaac Newton


    I'm learning all the time, the tombstone will be my diploma!!!


    Did you ever stop to think, and forget to start again?

  6. #6
    Join Date
    Oct 2001
    Location
    Vancouver Island BC Canada
    Posts
    146
    Its only two years old and a little thing called manufacturers warranty, coupled with the fact its 30 miles one way and that small thing we call profit on the job comes into play. A stuck sequencer or relay??? why does the problem go away after the power is shut off and turned back on. If de-energized and the switch or sequencer is indeed stuck the problem should still be there when the power is turned back on. That I have experienced, not this one.

  7. #7
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,018
    Are you familiar with the affinity and its low voltage wiring?

    They work really well with additional Aux Heat Lockouts as well as a nice little hot heat pump mode when done correctly.

  8. #8
    Join Date
    Oct 2001
    Location
    Vancouver Island BC Canada
    Posts
    146
    Yes I am familiar with York Affinity.... YZE/AVY in my home Hot heat pump a neat option to have. Never experienced this problem before, which is why I thru it out there.

  9. #9
    Join Date
    Jan 2009
    Location
    Middle of the Oregon Coast
    Posts
    194
    Had the EXACT same thing happen to me. Check out the low voltage wiring - the W1/2/3 is probably jumpered at the AVY. Take the jumper out and it should be OK. Feel good that you didn't change 3 stats and still get the call at 2:30am. Yes, I said AM..... And an hour away from home - yep, it sucked......
    The Lord must love stupid people or he wouldn't have made so many.

    Why is it that when I am in a hurry, everyone else on the road goes 15 MPH under the speed limit?

  10. #10
    Join Date
    Oct 2001
    Location
    Vancouver Island BC Canada
    Posts
    146
    Will do and thanks for the tip. Will let you know what I find

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