69-2761EFS—09
20
Troubleshooting
If you have difficulty with your thermostat, try these suggestions. Most problems
can be corrected quickly and easily.
Screen 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.
• If thermostat is battery powered, make sure fresh AA alkaline
batteries are installed correctly (see page 16).
Screen is
difficult to
read
• Change screen brightness using Preferences menu (see page
13).
Red light is on
• If thermostat is in Emergency Heat mode, the red light is normal. It
shows that the thermostat is in Emergency Heat mode.
• If thermostat is not in Emergency Heat mode, an alert is active.
Check message on the thermostat screen.
Heating or
cooling system
does not
respond
• Touch
SYSTEM
to set system to Heat. Make sure the temperature is
set higher than the Inside temperature.
• Touch
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.
• If “Wait” is displayed, the compressor protection timer is on. Wait
5 minutes for the system to restart safely, without damaging the
compressor.
Cannot change
time or date
• See page 3. If the thermostat doesn’t allow you to adjust time/date
and is used with a RedLINK Internet Gateway, the thermostat is
getting the time/date information from the address entered under
the location that the thermostat is registered to in the total Connect
Comfort account. If the thermostat is newly installed without a
gateway, there can be a 72 hour delay before the thermostat will
allow you to set time and date. To bypass the delay, remove the
thermostat from wall plate (see page 16) and remove the coin cell
battery for at least one minute. Then put the battery back in and
re-attach the thermostat to wall plate.
