RTH2410B1001/U - Thermostat HONEYWELL - Free user manual and instructions
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| Product Type | Programmable Thermostat |
| Brand | Honeywell |
| Model | RTH2410B1001/U |
| Dimensions (H x W x D) | 4.5 x 4.5 x 1.2 inches |
| Weight | 0.5 lb |
| Power Supply | 24 VAC (common wire required) or battery (2x AA, optional) |
| Display Type | Digital LCD |
| Compatibility | Most conventional 24V heating/cooling systems (gas, oil, electric, heat pump) |
| Stages | 1 heat / 1 cool |
| Programming | 7-day programmable with 4 periods per day |
| Temperature Range | 40°F to 90°F (4°C to 32°C) |
| Accuracy | ±1°F |
| Key Functions | Programmable schedules, hold, filter reminder, low battery indicator |
| Installation | Wall mount, includes screws and anchors |
| Electrical Rating | 24 VAC, 1 A maximum |
| Backup Power | 2x AA alkaline batteries (not included) |
| Warranty | 5 years limited |
| Repair/Spare Parts | Contact Honeywell customer service for replacement parts |
| Cleaning | Wipe with a dry cloth; do not use liquids or sprays |
Frequently Asked Questions - RTH2410B1001/U HONEYWELL
How do I install the Honeywell RTH2410B1001/U thermostat?
Turn off power at the heating/cooling system. Remove old thermostat base, label wires, and connect to the new thermostat following the wiring diagram in the manual. Attach the base to the wall, install batteries (optional), and mount the faceplate. Restore power and configure settings.
Does this thermostat require a C-wire?
No, but it is recommended. The RTH2410 can run on batteries alone, but a common wire (C-wire) is needed for continuous power and to use features like the backlight. Without it, the thermostat operates on battery.
How do I program the schedule?
Press Set Schedule, then select day(s) and time periods: Wake, Leave, Return, Sleep. Set the desired temperature for each period. You can copy schedules to other days. Save and exit. The thermostat will follow the programmed schedule.
Why is my thermostat not turning on?
Check if the batteries are installed correctly and not depleted. If using a C-wire, verify that the breaker is on and the wire is properly connected. Ensure the system power is on. Try resetting the thermostat by removing batteries for 1 minute.
How do I change the temperature display from Fahrenheit to Celsius?
Press and hold the Menu button for 5 seconds. Use the arrows to navigate to Temp Format. Select °F or °C and press Done. The display will update immediately.
What does the 'Filter Reminder' mean?
The filter reminder appears after a set runtime (default 1500 hours) to remind you to replace your HVAC system's air filter. To clear it, press any button, or replace the filter and reset the reminder from the menu.
Can I use this thermostat with a heat pump?
Yes, the RTH2410 is compatible with single-stage heat pumps (without auxiliary heat). Ensure the O/B terminal is set appropriately in the installation setup. For multi-stage or auxiliary heat, consider a different model.
How do I temporarily override the schedule?
Use the up/down arrows to adjust the temperature. The thermostat will hold the new temperature until the next scheduled period. For a longer hold, press Hold to maintain the temperature indefinitely. Press Run Schedule to resume.
What do the battery symbols indicate?
A low battery icon (flashing) means the batteries are nearly dead and should be replaced soon. A solid battery icon indicates the thermostat is running on battery power. If connected to C-wire, the battery icon may not appear.
How do I reset the thermostat to factory defaults?
Press and hold the Menu and Hold buttons together for 5 seconds. The screen will go blank and then show Factory Reset. Confirm with Yes. All settings will be erased, and you’ll need to reconfigure.
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