This post explains Reset Honeywell digital thermostat. We demonstrate these on the RTH9580WF model. This method does the following.
So, follow the steps below, to hard Reset most any Honeywell digital Thermostat.
We suggest these directions when fixing problems. Resetting cuts the chance that faulty settings are causing the t-stat to act funny.
But after doing this, the unit forgets any programmed settings. So you must re enter your wireless network name and password again. Also, your custom schedules, if any, will disappear as well. Resetting returns the home thermostat to the built-in heating and cooling routines. So again, you might want to adjust them again for to your specific needs.
Before restoring to factory default settings, gather your thermostat manual that shipped with it. Or, find it online at Honeywell’s web site.
Write down the current daily program schedule currently stored in the thermostat. Do this if you’ve changed it from the default schedule.
Then, run down through the menus. Jot any settings that you changed prior that let the this thermostat work with your furnace. These include filter-change reminders, wireless network connection info, system type, thermostat name, location, et al.
Then, scroll down by pressing the down arrow key, until you see the Preferences button.
When the Preferences screen appears, scroll with the down-arrow key. Look for the “Restore Factory Defaults” button.
The thermostat then prompts you to confirm that you surely want to restore it.
WARNING: Tapping the green Yes button next, erases all user specific settings. So do not Reset until you feel that you can set it up again after. Get help from a climate control specialist if you’re unsure.
If you wish to proceed, then tap the green Yes button. Otherwise, tap the red No button.
When you press Yes, the display then shows the Restoring Factory Default Settings screen for a bit.
Then, after boot-up, the thermostat prepares to get new data from you. While it does this, it shows the Please Wait screen as follows.
Then, the Honeywell digital Thermostat prompts you to enter some initial settings. Finally, this allows it to start up with working default values, as shown next.
After Reset, follow the prompts. They ask for info about your wireless network and HVAC system.
At last, you have now restored your thermostat to factory default settings.
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