How to fix a honeywell thermostat that isn’t working disconnect all of the cables from the thermostat.

How to replace battery in honeywell thermostat. Dispose of them properly and then insert your new batteries. If your honeywell thermostat has an led display, and it needs batteries, it usually has a low battery warning. Pushing down the tab on the top opens the battery compartment.

How to reset honeywell thermostat after replacing batteries. This warning appears on the screen as a flashing banner that says. Remove the old batteries, noting where the positive and negative ends are placed.

Remove the wall plate from the device. Reverse the process and re. Determine the model of the thermostat you own;

6 how to change honeywell thermostat battery. Gently pull the thermostat’s bottom and remove the unit from its wall plate. In this video i instructions for the correct and easy way to replace the two aa(double a) batteries in a honeywell pro series t4 thermostat.

Slide the battery compartment sideways to fully take out the battery casing. Open the front cover by pulling the front cover out gently. You will probably find two of them there.

Take out the dead, old batteries. Turn it over and replace the aaa batteries. Put the thermostat in the ‘off’ position and remove the batteries.