Honeywell RTH6500WF Wi-Fi Series User Manual page 62

Troubleshooting
Error Code
E42
Router is not issuing
an IP address to the
thermostat.
E43
No internet connection.
Thermostat cannot
communicate to Total
Connect Comfort.
E99
General error
69-2718EF—03
Action
• Wait for 30 minutes, connection can take
several minutes.
• If still no connection, remove thermostat
from wallplate for 10 seconds, then
reconnect it (see page 26).
• Verify your router is correctly setup to
automatically give IP addresses.
• Make sure the Internet cable is plugged
in.
• Reboot the router.
Remove thermostat from wallplate for
10 seconds, then reconnect it ( see page
26).
60
M33998