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Heating will not come on. • Check that the system control on the thermostat is set to
HEAT.
• Check the display. If SAVING is displayed, the system is in in
DLC mode and the thermostat is utility controlled. Heating
cannot come on until the DLC period ends.
• If the temperature setting is higher than current temperature,
and the display says HEAT, contact your utility company.
Cooling will not come on. • Check that the system control on the thermostat is set to
COOL.
• Check the system fuse or circuit breaker and replace or reset,
if necessary.
• Check the display. If SAVING is displayed, the system is in
DLC mode and the thermostat is utility controlled. Cooling
cannot come on until the DLC period ends.