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RTH6400
25 69-2210EF—03
About your new thermostat
SETUP WIRING ASSISTANCE TROUBLESHOOTING
For assistance with this product, please visit
http://DIYthermostats.honeywell.com
or call Honeywell Customer Care toll-free at
1-800-468-1502.
Customer assistance
To save time, please remove the battery holder and note
your model number and date code before calling.
Accessories/replacement parts
To order, please call Honeywell Customer Care toll-free
at 1-800-468-1502.
Battery holder ..............................Part No. 50007072-001
Cover plate assembly* ................Part No. 50002883-001
*Use to cover marks left by old thermostats.