43
Symptom
Problem
Solution
Cannot enter
heat or cool
modes.
SMART 2000 thermostat set for
Heating or Cooling only modes.
Heating or cooling mode is not
available on your system.
Cannot set
heating and
cooling to desired
value. Padlock
symbol flashes.
This is not a fault.
Your installer has set control
limits for the Heating and/or
Cooling set temperature.
Contact your installer and
request these limits to be
removed / adjusted.
Outside Air
Temperature
display is showing
dashes.
Outside air temperature air
sensor has failed.
Check wiring and outside air
sensor.
Replace outside air sensor.
No outside air sensor fitted.
Installer has set TT terminal
function incorrectly – Call for
service.
Summary of Contents for SMART 2000
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