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My visonpro Honeywell 8000 digital thermostat's screen is locked and I can't unlock it

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  • Anonymous Nov 08, 2008

    screen is locked and can't change the temp

  • Anonymous Jan 04, 2009

    When I press the system box and then press and hold the third box from the left on the bottom, nothing happens and no controls become available. I have held anywhere from four seconds to 30 seconds, and still nothing (no advanced features) are available. The screen locked status stays the same.

  • Anonymous Jan 09, 2009

    670 does not show up. It cycles through 120, 130, 140, 150, 160, 320, 330, 540 & 640....that's it.

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Push the System button, then in the bottom row of empty buttons, press the middle buttton for 4 seconds. The display will change, showing system codes on left and that code's setting on the right.
Choose 670, and option 0 opens it up completely, option 1 locks it partially. You should not try to override settings the HVAC/Building admin has set for you, in case you are trying to defeat their control.

Posted on Dec 24, 2008

  • VicS Feb 07, 2015



    On some versions of the Honeywell control, the way to get into the management menu to deactivate the lockout or other system options is not the middle button but the two buttons on either side of the blank middle button, held down for 4 seconds. The option setting for unlocking remains: setting number = 670 , value 0,1,2

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1 Answer

How to unlock screen


Change battery located on back of thermostat??

Go to google
Search for your model number 1234XX .pdf
Add .pdf in search parameter.
Honeywell posts most their thermostat manuals.
Open pdf file, and then Use Ctrl+F for search feature
Word-Search manual

To find model number on thermostat, remove from wall.
Model number appears on back.
Don't forget to replace battery while you have back exposed.
Dead battery can also cause lockout and malfunction

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Our visionpro 8000 thermostat has adjusted its day. It is currently one day ahead. We have misplaced our manual and we cannot seem to get the day to change. Suggestions?


This site has owners manuals for different types of thermostats. http://yourhome.honeywell.com/home/Products/Thermostats/7-Day-Programmable/VisionPRO+8000.htm
This site is the manual for the "VisionPro 8000". You can look up what you need, copy or download. http://customer.honeywell.com/techlit/pdf/PackedLit/69-1894EFS.pdf Roger

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My thermostat is not working. It might be locked. It's blinking with all of the information it holds flashing on the screen. The part number is: tstatccnhp01-c My heat is no longer working. Can you...


Instructions
  1. 1 Unlock a partially locked screen by pressing any locked key, which will bring up the "Screen Locked" message. Next press an unlocked key, which will likely be the temperature up and down arrow keys. This will unlock the screen.
  2. 2 Press the "System" key from the home screen. Five blank touch keys, flanked by the "Done" and "Cancel" keys, will appear. Hold down the middle key for about five seconds. The Advanced Settings menu should come up.
  3. 3 Change the User Setup Number, found in the bottom left of the screen, by pressing the middle arrow keys up or down. Set the number to "0670," the universal unlock code.
  4. 4 Turn to the arrow keys on the right side of the screen. Press the keys up or down to change your options. Selecting the number "0" will unlock the screen, while choosing "1" will partially lock it. You can fully lock your screen again by selecting.


Read more: How to Unlock the Screen on a Honeywell Thermostat ' eHow.com http://www.ehow.com/how_7667347_unlock-screen-honeywell-thermostat.html#ixzz19ktDWSq8

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Hi,
If the thermostat is not over shooting the temperature than don't worry about it.
These thermostats are very sensitive and will turn the heat back on even before the degrees drop on the display. Often they will shut down before the display changes also. You can change the sensitivity of the thermpstat if you read the directions and change the cycles per hour to a less number. There is an installers program in there that you need to push a combiunation of buttons to get too. The instructions tell you how to do that also.

Hopefully you did not throw away the instruction manual for your t-stat.. :-)

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