
69-2718ES—01 60
Troubleshooting
M33998
Error Code Action
E42 Router is not issuing
an IP address to the
thermostat.
•Waitfor30 minutes,connectioncan
take several minutes.
•If stillnoconnection,remove
thermostat from wallplate for 10
seconds, then reconnect it (see page
26).
•Verifyyourrouteris correctlysetupto
automatically give IP addresses.
E43 No internet connection.
Thermostat cannot
communicate to Total
Connect Comfort.
•Make suretheInternetcableis
plugged in.
•Reboot therouter.
E99 General error Remove thermostat from wallplate for
10 seconds, then reconnect it (see page
26).
69-2718ES_A.indd 60 8/13/2012 3:01:51 PM