Remove the wall plate from the device.

How to change battery in honeywell thermostat. How to switch the batteries in your honeywell thermostat turn off the power to your thermostat and remove it from the wall. Take out the dead, old batteries. Replace batt air conditioner if central air thermostat not working.

Turn it over and replace the aaa batteries. Remove the bad battery from the thermostat by unscrewing all the screws holding it. Next, gently pull the cover away from.

First, locate the battery cover on the back of the thermostat. Place the new battery in the position of the older battery. Here is how to replace the battery in honeywell 5000 series thermostat.

Open the front cover by pulling the front cover out gently. How to fix a honeywell thermostat that isn’t working disconnect all of the cables from the thermostat. Then, use a phillips screwdriver to remove the two screws that secure the cover in place.

Wait five minutes after removing. How to change battery in honeywell thermostat cool on but not working ac. 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.

You will probably find two of them there. Some honeywell thermostats use an aa battery or aa alkaline batteries, while others use aaa batteries. 8 rows all honeywell thermostats that have batteries store the batteries in the control panel.