Honeywell RTH6500WF Wi-Fi Series Troubleshooting Manual

Also See for RTH6500WF Wi-Fi Series:

User manual

Quick start manual (25 pages)

Quick start manual (16 pages)

Table of Contents

Contents

1 Troubleshooting
2 Documents / Resources
- 2.1 Download manual

Honeywell RTH6500WF Wi-Fi Series Troubleshooting Manual

Troubleshooting

Lost Signal

If the no-Wi-Fi indicator displays in place of the Wi-Fi strength indicator in the upper right hand corner of the home screen:

Check another device to be sure Wi-Fi is working in your home; if not, call your Internet Service Provider.
Move the router.
Restart the thermostat: remove it from the wallplate, wait 10 seconds, and snap it back onto the wallplate. Return to Step 1 of Connecting to your Wi-Fi network.

Error Codes

For certain problems, the thermostat screen will display a code that identifies the trouble. Initially, error codes are displayed alone in the time area of the screen; after a few minutes, the home screen is displayed and the code alternates with the time.

Error Code	Action
E01 During Wi-Fi Setup, the router lost power.	Ensure your router has power. If trying to connect to a hidden or manually added network, confirm the router has power and is working.
E02 Invalid Wi-Fi password. This code displays for 30 seconds, then the thermostat will re-enter Wi-Fi Setup mode.	Re-enter password for your home Wi-Fi network. Repeat setup process and confirm your password for your home Wi-Fi network.
E42 Router is not issuing an IP address to the thermostat.	Wait for 30 minutes, connection can take several minutes. If still no connection, remove thermostat from wallplate for 10 seconds, then reconnect it. Verify your router is correctly setup to automatically give IP addresses.
E43 No internet connection. Thermostat cannot communicate to Total Connect Comfort.	Make sure the Internet cable is plugged in. Reboot the router.
E99 General error	Remove thermostat from wallplate for 10 seconds, then reconnect it).

If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.

Display is blank	Check circuit breaker and reset if necessary. Make sure power switch at heating and cooling system is on. Make sure furnace door is closed securely. Make sure C wire is connected.
Cannot change system setting to Cool	Check Function 1: System Type to make sure it is set to match your heating and cooling equipment.
Fan does not turn on when heat is required	Check Function 3: Heating Fan Control to make sure it is set to match your heating equipment.
Cool On or Heat On is flashing on the screen	Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor.
Heating or cooling system does not respond	Press System to set system to Heat. Make sure the temperature is set higher than the Inside temperature. Press System to set system to Cool. Make sure the temperature is set lower than the Inside temperature. Check circuit breaker and reset if necessary. Make sure power switch at heating & cooling system is on. Make sure furnace door is closed securely. Wait 5 minutes for the system to respond.
Heat pump issues cool air in heat mode, or warm air in cool mode	Check Function 2: Heat Pump Changeover Valve to make sure it is properly configured for your system
Heating system is running in cool mode	Check Function 1: System Type to make sure it is set to match your heating and cooling equipment.
Heating and cooling equipment are running at the same time	Check Function 1: System Type to make sure it is set to match your heating and cooling equipment. Grasp and pull thermostat away from wallplate. Check to make sure bare wires are not touching each other. Check thermostat wiring is correct.