How do you change battery on honeywell thermostat

You need to remove the thermostat from the wall plate to change the battery. Look on the bottom of the thermostat for a locking screw. Loosen this screw with an appropriate screw driver. Then pull the bottom of the thermostat away from the wall plate and then lift up from the bottom. When you put the thermostat back on, line up the brackets at the top of the thermostat with the slots on the wall plate. Then push the thermostat against the wall plate and tighten the locking screw.

The documentation for the Honeywell RTH2300B1012/U is available on the product page: https://www.honeywellstore.com/store/products/5-2-day-programmable-thermostat-honeywell-rth2300b.htm . Click on the Manuals tab. See page 4 (page 6 of the PDF) for removing the thermostat from the wall plate. See page 9 (11 of the PDF) for replacing the batteries and putting the thermostat back on the wall plate. The current link to the manual is https://www.honeywellstore.com/store/images/pdf/rth2300b1012-u-5-2-day-programmable-thermostat.pdf .

I hope this helps.

Cindy Wells

According to the manual for the model series (see link), only the T8002 Model has batteries. They are accessed from the right side of the thermostat. See page 14.
https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-1431.pdf

No friend,
Inside the Honeywell box WILL be a battery. which is there to keep your settings if a Power Failure occurs.
All you have to do is change it and reset your Control.

A typical change of battery is explained here.

http://homeguides.sfgate.com/change-wall-thermostat-battery-25307.html

yourhome.honeywell.com/home/Products/.../RTH6350D.ht

Operating manual.

Any Honeywell thermostats I have come across you slightly tug on bottom of thermostat which disengages it from the wall and lift up. Batteries are then exposed. Replace with new and reverse take-off procedure to remount. If I remember correctly these do have a small battery backup to save your initial settings so you do not have to reset time and program. Can you tell me the complete model number of thermostat or send a picture of it?

Remove thermostat from wall, leaving base plate on wall.
Model number appears on back of device.
Google search thermostat model in following format: Honeywell xxxx32 thermostat .pdf
Adding .pdf to search parameter will yield product manual.
Also while thermostat is off the wall, change batteries located in compartment on back of thermostat. These batteries must be changed periodically, for example each 3-4 years.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Check any batteries and replace if needed. Ensure that you use only AA alkaline, nonrechargeable batteries.

2 Check for oxidation buildup on battery contacts. Use electrical contact cleaner and carefully clean the battery contacts of any oxidation buildup.

3 Reset the system switch.

Read more: How to Troubleshoot Honeywell Thermostats ' eHow.com http://www.ehow.com/how_6596826_troubleshoot-honeywell-thermostats.html#ixzz17aWIl2Xt