How To Change A Honeywell Thermostat Battery (Step-by-Step …
https://upgradedhome.com/how-to-change-a-honeywell-thermostat-battery/
WEBNov 17, 2020 · Turn off your thermostat, open the battery compartment on the front, and remove the batteries. Put the new batteries in the compartment and slide the protective plate over them. Place the thermostat back on the wall, turn it on, and check to make sure that the new batteries work.
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