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42 69-1536–3
Troubleshooting (Cont)
Symptom Possible Cause Action
Cooling does not
come on.
System selection is not set to
Cool. Cooling setpoint is
above room temperature.
Check that setpoint is below room temperature.
Check if the circuit breaker is tripped—reset the circuit
breaker.
Check if the fuse at the fuse box is blown—replace the
fuse.
Check if the System switch at the equipment is in the
Off position—set to the On position.
Wait five minutes for the system to respond (thermostat
displays “ Wait”).
Set System selection to Cool.
System on indicator—
for heat, for
cool— is lit, but no
warm or cool air is
coming from the
registers.
Heating/cooling equipment
turns on the fan when the
equipment has reached the
preset time or temperature.
Wait a minute after seeing the or and then
check the registers. If there is no hot or cool air coming
from registers, refer to Heating does not come on or
Cooling does not come on.
Heat or cool turns on
before programmed
time.
Adaptive Intelligent
Recovery™ control is on.
Adaptive Intelligent Recovery™ control brings the heat
or cool on early to meet the temperature set for the
programmed period. See Adaptive Intelligent
Recovery™ control section. To disable Adaptive
Intelligent Recovery™ control, contact your local
Heating and Air Conditioning contractor.
42


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