Honeywell RTH6580WF Wi-Fi – User Guide & Manual
The Honeywell RTH6580WF Wi-Fi Thermostat is a versatile, programmable thermostat designed for easy control of your home’s heating and cooling systems. With Wi-Fi connectivity, it allows you to monitor and adjust temperatures remotely via the Honeywell Home app on your smartphone or tablet. The user-friendly interface provides simple programming options, energy-saving schedules, and system alerts to optimize comfort and efficiency. The official User Guide & Manual offers step-by-step instructions for installation, setup, troubleshooting, and advanced features, making it easy for homeowners and professionals to get the most out of this smart thermostat.
Honeywell RTH6580WF Wi-Fi Thermostat — Troubleshooting
Thermostat not turning on
Possible cause:
No 24V AC power or loose C-wire connection
Solution: Check breaker, wiring, and C-wire connection
Wi-Fi not connecting
Possible cause:
Incorrect password or weak network signal
Solution: Verify Wi-Fi credentials and ensure strong 2.4GHz signal
Cooling not starting
Possible cause:
System mode not set to COOL or voltage issue
Solution: Set mode to COOL and check thermostat voltage
Heating not working
Possible cause:
Thermostat not in HEAT mode or furnace wiring problem
Solution: Select HEAT mode and verify furnace wiring
Fan runs continuously
Possible cause:
Fan set to ON instead of AUTO
Solution: Change fan setting to AUTO
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Frequently Asked Questions
Why does my AC fan keep running? +
If the fan is set to ON, it will run continuously. Change the fan setting to AUTO so it cycles with the heating or cooling system.
How do I reset the thermostat? +
Press and hold the “System” and “+” buttons simultaneously until the display resets to default settings.
The screen is blank. What should I check? +
Ensure the thermostat is receiving power. Check circuit breakers, C-wire connection, and 24V AC supply.
Can this thermostat control both heating and cooling? +
Yes, the RTH6580WF supports both AC cooling and furnace heating when properly wired and configured.
How do I connect the thermostat to Wi-Fi? +
Go to the Wi-Fi settings in the thermostat menu, select your network, and enter your password. Ensure your router supports 2.4GHz frequency.