Honeywell RTH6500WF Thermostat User Manual


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69-2718ES—01 60
Troubleshooting
M33998
Error Code Action
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 (see page
26).
• 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 (see
page
26).
69-2718ES_A.indd 60 8/13/2012 3:01:51 PM
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