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Honeywell Commercial PRO TB7220U Touchscreen Programmable Thermostat wont come off screen lock and we wanna turn on air conditioning... how do you shut off screen lock?

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That one is fun. Touch the system cycle button. then touch the two spaces on both sides of the center button at the bottom hold them down at the same time. After 5-10 seconds the screen should flash and show numbers int the center of the screen touch the screen til the numbers 670 appear. then change the numbers beside it to 0. then click done. now you should be able to adjust temperature as needed

Posted on Apr 15, 2008

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Posted on Jan 02, 2017

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Programmable Honeywell


A Programmable Honeywell Thermostat is a great investment for you to make for your heating and cooling system. A Honeywell Thermostat will provide you with the best in comfort and dependability for many years.

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Along with the thermostats you now are able to add remote outdoor sensors as well as install you thermostat in a remote place and run a sensor to the space you are controlling. For many years these capabilities were standard for commercial thermostats, but now they are a very real possibility for home use also. With an outdoor sensor these thermostats now have the capability to turn off your heat pump and start you backup heat a certain preset out door temperature. In the past many systems have been installed with complicated electronic to do what a thermostat can do very easily.

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http://www.fixya.com/support/r3894275-manual_honeywell_find_honeywell_manuals

http://www.fixya.com/support/r3623083-thermostat_wiring_terminal_designations

on Jan 15, 2010 | Heating & Cooling

1 Answer

Touchscreen is not functioning


First try replacing the batteries. I have a slightly diff honeywell model and it takes 2 "AAA" batteries. The battery holder comes out the side of the unit, just press where it says press and pull out.

Sep 11, 2012 | Honeywell Rth8500d 7-day Touchscreen...

1 Answer

How do I lock keys on TB7220U? The previous advice did not work - there are no blank keys.


Access the ISU (installer setup) menu by pressing the system key from the main screen then press and hold the two keys on either side of the center for approximately five seconds. Hit next until you find 0670 and then change the value to 4. http://www.forwardthinking.honeywell.com/related_links/thermostats/commercial_pro/install/62_0221.pdf On a side note, this information was insanely hard to find.

Nov 15, 2010 | Honeywell Electronic Programmable...

1 Answer

I have a honeywell III chronotherm thermostat /It won't turn on the heat or the air conditioning when turned to those settings, but it sometimes will when turned to "auto". The batteries seem fine, no...


it sounds like it is time to repalce the stat, auto is set to allow the fan to run only when the heat or a/c is on, the switch for heat and cool will select either, and the temperature lever should allow contact for the bulbs to bring on the desired component. there are no replaceable parts on a thermostat, or I would try to walk you through replaceing them. good luck.. I prefer the honeywell vision pro or the white rodgers 9500 series stats

Jul 11, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

How to lock a Honeywell TB7220U Thermostat


With directions go to system. Then hold down 2 blanks on either side of middle for 30seconds this shows you Advanced settings . Read through and find the proper settings

Jul 02, 2009 | Honeywell Electronic Programmable...

1 Answer

I'm trying to hook up a honeywell touchscreen thermostat and need to know what wires go where.


i have a vison pro th8320u and i cant get aux heat to operate also aux heat on will not come up on the touch screen.

Jan 04, 2009 | Honeywell Electronic Programmable...

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