69-1284—218
If You Have a Problem Table 4. Solution Guide.
If... Then…
Displa
y
does not appear. •Make sure the batteries are installed correctl
y
.
•Make sure the thermostat is mounted and latched on the wallplate.
Mount and latch the thermostat on the wallplate if it is not.
Temperature settin
g
s will not chan
g
e
(example; cannot set the heatin
g
hi
g
her or the coolin
g
lower).
•Make sure the temperature setpoints are:
40 to 90°F (4.5 to 32°C) for heatin
g
.
45 to 99°F (7 to 37°C) for coolin
g
.
Heatin
g
does not come on. •Make sure the heatin
g
setpoint is above the room temperature.
•Make sure the circuit breaker is not tripped, and reset it if necessar
y
.
•Make sure the power switch at the equipment is in the On position, and
set it to On if it is in the Off position.
•Wait five minutes for the s
y
stem to respond.
•Set the s
y
stem ke
y
to Heat.
Coolin
g
does not come on. •Make sure the coolin
g
setpoint is below the room temperature.
•Make sure the circuit breaker is not tripped, and reset it if necessar
y
.
•Make sure the s
y
stem switch at the air conditioner is in the On position,
and set it to On if it is in the Off position.
•Wait five minutes for the s
y
stem to respond.
•Set the s
y
stem ke
y
to Cool.
S
y
stem on indicator ( = heat, =
cool) is lit, but no warm or cool air is
comin
g
from the re
g
isters.
Wait five minutes after seein
g
the flame or snowflake and check the re
g
isters
a
g
ain. If no there is no hot or cool air comin
g
from the re
g
isters, refer to
Heatin
g
does not come on or Coolin
g
does not come on. If all of this has been
checked, contact
y
our local heatin
g
and coolin
g
contractor.
Displa
y
flashes durin
g
pro
g
rammin
g
. The temperature settin
g
limit has been reached. The heatin
g
settin
g
ran
g
e is
40°F to 90°F (4.5°C to 32°C). The coolin
g
settin
g
ran
g
e is 45°F to 99°F (7°C
to 37°C).