Question about Honeywell Programmable Thermostat Heater

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Vision pro 8000 total lock screen

Husband accidently locked screen. It is totally locked out tried soloution to press system and simontaneously press the buttons left and right of center nothing happens. Still locked, screen reads permanetley hold temp for 55 days is their something else to over ride or reset lock function?

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My Vision Pro didn't reset any data when I pulled it from the wall and put it back. No batteries to remove as I never installed them since I leave it on the wall. My temp schedules where still in place and the screen was still locked. bummer. I noticed that only the first two or three collums of buttons worked on mine. Everything else to the right was locked. I could use the sched and hold buttons but this was not too usefull. This kept me from getting into the Advanced Menu as the buttons I needed to hold down were locked! I managed to reset the whole unit by pulling the screen and circuit board out of the housing and pulling the CMOS battery from the back of the board. When I put it all back together It prompted for date and and year etc. However I could not adjust these as the screen still appeared to be locked! I then proceeded to pull the circuit board back out and the cmos battery out and then I pulled the two thin ribon cable connectors free from the circuit board and pluged them back in incase they were not connected well. Turns out this fixed it! I did all of this and when I put it back together it worked fine. I had to check all my Advanced Settings and it looked like for the most part all my schedules were still there so It was fixed. However the very next day it was locked again. I plan on contacting Customer support about this now to see if they will replace it. I think that it is just a faulty unit or that the connectors are not well made. I've only had it a year now. I plan on trying the connectors again and if it locks after that I will see that Honewell replaces it.

Posted on Mar 10, 2010

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Did you make sure that when you pushed the system button that either heat or cool was blinking before pressing the buttons left and right of center? Also you can pull the stat from the base mounted on the wall and remove the batteries, wait a few and put the batteries back in and it should revert back to initial factory settings

Posted on Jul 14, 2009

  • drillusoil May 08, 2014

    Just as a follow up... I have had the same thermastat going on 5 years now. I had this screen unresponsive problem a time or two since my 1st post. Each time, undoing the ribbon cable connections on the circuit board and putting them back in fixed it.. I've been 2-3 years now without issue so I must have finally got the connectors tighter. Also Dan, Not sure what system button you speak of but I'm sure my problem was not related to selecting a setting or anything like that. The touch screen digitizer was simply not getting signals back to the main circuits.



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