First, locate the battery cover on the back of the thermostat.

How to replace battery on honeywell thermostat. Locate the position of the battery for changing. Remove the old batteries, noting where the positive and negative ends are placed. 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.

Next, gently pull the cover away from the. Put the thermostat in the ‘off’ position and remove the batteries. Remove the older 3 batteries and replace them with 3 new aaa batteries.

Remove the bad battery from the thermostat by unscrewing all the screws holding it. 8 rows all honeywell thermostats that have batteries store the batteries in the control panel. Pull out the faceplate to open the battery compartment.

Here is how to replace the battery in honeywell 5000 series thermostat. How to reset honeywell thermostat after replacing batteries. Then, use a phillips screwdriver to remove the two screws that secure the cover in place.

Place the new battery in the position of the older battery. Pull the thermostat and gently remove it from its wall plate. Dispose of them properly and then insert your new batteries.

Put the new batteries in the compartment and slide the protective plate over them. Remove the wall plate from the device. If your honeywell thermostat has an led display, and it needs batteries, it usually has a low battery warning.