Register

Results 1 to 4 of 4
  1. #1
    Junior Member
    Join Date
    Dec 2013
    Posts
    3

    Unhappy Honeywell RTH9580 Temperature calibrate

    So I bought a new Honeywell RTH9580 WiFi thermostat. Love it, but having a issue with the temperature. I still have my old White Rogers thermostat sitting above it. The old thermostat reads 64 degrees the new one reads 66. Its def. not 66 in here its 64. I've tried adjusting the temp set points but cannot get it to match the old thermostat. Any suggestions would be appreciated! Thanks!


  2. #2
    HVAC Thermostat Specialist
    Join Date
    Feb 2012
    Posts
    361
    Is the hole behind the thermostat sealed? There may be a draft coming from the hole.

    There is some information in this thread regarding the temperature reading issue.

  3. #3
    Moderator - HVAC Thermostat Specialist
    Join Date
    Feb 2012
    Location
    NE Indiana
    Posts
    598

  4. #4
    Junior Member
    Join Date
    Jun 2013
    Posts
    24
    Not saying there isn't a problem with the Honeywell since I initially experienced issues and it still has some little quirks, but how do you know the White Rogers is right? While the Honeywell says it is accurate to +/- 1 degree, what is the White Rogers accurate to? If the White Rogers is also +/- 1 degree that means you could technically have a difference of 2 degrees and be within specifications on both units. Also, most digital household thermometers are usually only accurate within 1.8 degrees unless you spend a good amount of money on a super accurate one. So in that case, comparing a household thermometer to the Honeywell could show a difference of 3 degrees between the two and still be right.

 

 

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Advertising positioning by Digital Point
All times are GMT -8. The time now is 02:17 AM.
vBulletin 4.0 skin by CompleteVB