Honeywell CT2700 - Manual (Page 7)

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7
CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT
c. After the
thermostat
reverts back to
displaying room
temperature
(approximately five seconds), simultaneously
press
and keys and hold for three
seconds. Release the keys after the display
changes.
d. Press within
five seconds.
The display
changes to
show current
cycle rate
setting.
2. Cycles Per Hour
a. Use or to select 1, 3, 6, or 9 cycles per
hour (cph). Refer to Table 3.
Table 3. Heating Cycle Rates
b. Press to
display the
current
°
F or
°
C setting.
3. Fahrenheit - Celsius Temperature
a. Use or to choose between
°
C and
°
F.
b. Press to
display the
current 12- or
24-hour clock
setting.
4. Clock Format
a. Use or to choose either a 12- or 24-
hour clock format.
Press once to exit the
Installer Setup. Upon exiting,
the temperature setting will
be at 52
°
F (11
°
C). Pressing
six times returns the
thermostat to the normal
operational mode. End appears in the display.
5. Slide system switch to desired position.
TEMPORARY
AM
System Program Setting (cph)
Gas or oil forced air 6
Electric furnace 9
Hotwater baseboard, High
efficiency (90+) gas furnace 3
Steam, radiant floor heat,
gravity 1
Symptom Possible Cause Corrective Action
Heating/cooling
equipment will not
operate No AC power to
thermostat. Check power to heating/cooling equipment:
—
On/Off switch
— Fuse or circuit breaker
— Loose 24V connection: At thermostat; at furnace/air
conditioner
— Incorrect wiring: check appropriate wiring diagram.
Thermostat inoperative. See checkout section.
System switch on
thermostat in wrong
position. Reset System switch.
Thermostat minimum-off
times operating for
cooling. Wait five minutes or follow steps in Checkout section.
Incorrect wiring. Check wiring.
Heating/cooling
equipment inoperative. Consult equipment manufacturer instructions.
Partial display Inoperative thermostat. Replace thermostat.
Still in installer setup
mode. See Installer Setup section for exit instructions.
No display No power to thermostat. Check power to thermostat.
Thermostat mounted
incorrectly on wallplate. See installation instructions for correct mounting.
Temperature display
is incorrect Thermostat is configured
for °F or °C. Reconfigure the display. See Installer Setup section for
instructions to change the display.
Cannot change
temperature setting The upper or lower
temperature limits were
reached. Check the temperature setpoints; temperature setting
range is 40°F (4°C) to 99°F (37°C).
TROUBLESHOOT YOUR THERMOSTAT