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I have a Honeywell ProSeries thermostat and in trying to reset the temperature The only thing showing is UNLOCK on the screen and I don't know what to do. I don't 't know what the Pin no. Is.

acrman404a Dec 01, 2017

You will have to contact Honeywell to see what the procedure is to unlock a tstat when the pin is lost. If you still have the book their customer service number should be in the book if not you can get their # on line

1 Answer

Thomas Woodburn

Honeywell Master 2,638 Answers
Posted on Dec 01, 2017

Thomas Woodburn

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Anonymous

46 Answers
Posted on May 27, 2008

SOURCE: problem with Honeywell RTH230B Thermostat

Sounds like you have it wired wrong.. Pop the top off and give me to color of the wires and tell me which letter each color wire is on.. that will tell us right away if you have it wired wrong

Anonymous

1 Answer
Posted on Dec 24, 2008

SOURCE: My visonpro Honeywell 8000 digital

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.

Anonymous

10865 Answers
Posted on May 28, 2009

SOURCE: Unlock a Honeywell Thermostat

here is the link to get a manual for your particular theremostat.

http://yourhome.honeywell.com/yourhome/CMSTemplates/SolutionByCategory.aspx?NRMODE=Published&NRNODEGUID=%7bBE070174-CDA8-4628-8D04-7598F09C71E1%7d&NRORIGINALURL=%2fConsumer%2fCultures%2fen-US%2fProducts%2fThermostats%2fDo-It-Yourself%2fProgrammable%2fDefault%2ehtm&NRCACHEHINT=Guest

Anonymous

3 Answers
Posted on Jul 04, 2009

SOURCE: 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

Anonymous

1 Answer
Posted on Dec 15, 2009

SOURCE: Honeywell CM921 Showing room temp at -24 degrees, How do I reset?

honeywell cm921 problem with red light flashing tenp not controling boiler can any one hel

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My Honeywell ProSeries thermastat has a triangle with an exclamation mark inside of it on the screen by the temperature in the house. What is this alert and how do I clear it?

Replace the battery. The Triangle and exclamation point mean the battery is in need of replacement.

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ITS LOCKED AT 75 DEGREES AND DONT KNOW HOW TO UNLOCK

Remove the thermostatfrom its base and replace the batteries. To remove the thermostat, grasp it atthe edges and pull toward you. The batteries are on the back of the thermostathousing. If this doesn't unlock the touch screen, continue to the next step. Check that the furnace'sfuse is not blown or that the circuit breaker is not tripped. Replace a blownfuse or reset a tripped circuit breaker, and try the thermostat again. Press the"Screen" button on the touch screen, then wait for 30 seconds andpress "Done." In many cases, this will unlock the screen and thethermostat will be ready for normal use. Wait five minutes for thecompressor timer to reset if "Wait" is displayed on the screen. Thenoperate the system normally.

Read more: How do I Unlock the Digital Display on a HoneywellRTH8500 Thermostat? ' eHow.com http://www.ehow.com/how_7267447_do-display-honeywell-rth8500-thermostat_.html#ixzz17KUJvAB9

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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 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 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 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 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.

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Here is a simple way to tell. Remove your thermostat from it's mounting plate, locate the wiring, the red and white are low voltage control wires. Disconnect them from the base and join the two together if the furnace runs you need a thermostat if not it is in the controls to the furnace.

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Check in your manual for the thermostat. By pushing a combination of buttons you can get into the advanced installer menu. From there you can make an adjustment to correct the temperature.

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I had the same problem...and I accidentally discovered the solution...

One thing you have to remember is that the temperature that is shown on the screen is actually the room temperature and not the "wind" temperature.

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Next use the "down" button to the right of the screen to reduce the wind temperature to the desired temperature and that's all you have to do. IMPORTANT: if you wish to increase or decrease the temperature of the "wind" you just use the "up" or "down" button; DO NOT HIT "m" again since if you hit "m" again, it will cycle through the "timer" and then "temp" again, and it will reset the "wind" temperature to the default 74 degrees.

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My Honeywell ProSeries thermastat has a triangle with an exclamation mark inside of it on the screen by the temperature in the house. What is this alert and how do I clear it?

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I have a Honeywell ProSeries thermostat and in trying to reset the temperature The only thing showing is UNLOCK on the screen and I don't know what to do. I don't 't know what the Pin no. Is.

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My Honeywell ProSeries thermastat has a triangle with an exclamation mark inside of it on the screen by the temperature in the house. What is this alert and how do I clear it?

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I have a Honeywell ProSeries thermostat and in trying to reset the temperature The only thing showing is UNLOCK on the screen and I don't know what to do. I don't 't know what the Pin no. Is.

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