Honeywell CT2800 Owner's Manual - Page 23

Customer Assistance - model

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If... Heating does not come on • • • • • • Cooling does not come on • • • • • • The house is too warm or too cool • • Furnace cycles too often or system • cycle length is too short or too long The thermostat current setting does • not match the display temperature to within plus or minus 1° • • Then... Check that the System switch is set to HEAT. Check the system fuse or circuit breaker and replace or reset if necessary. Check for correct wiring and good connections. If display is blank or displays "bAt Lo," install fresh batteries. Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. If temperature setting is higher than current room temperature and SYSTEM ON arrow is displayed, thermostat is operating correctly. Contact heating contractor for assistance. Check that the System switch is set to COOL. Check the system fuse or circuit breaker and replace or reset if necessary. Check for correct wiring and good connections. If display is blank or says "bAt Lo," install fresh batteries. The thermostat has a built-in time delay on cooling. Allow 5-10 minutes after changing setting before air conditioner starts. If temperature setting is lower than room temperature and SYSTEM ON arrow is displayed, thermostat is operating correctly. Contact ac contractor. Press RUN PROGRAM to check the current temperature setting. If desired, change the temperature setting. Adjust the screws on the back of the thermostat. Plug the wiring hole in the wall behind the mounting plate with insulation to prevent drafts that might adversely affect thermostat operation. Be aware that it is normal for the current setting and the displayed room temperature to differ on occasion. During recovery from setback or setup, setting and displayed room temperatures can differ for up to 30 minutes after recovery period. CUSTOMER ASSISTANCE Visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502. Before you call, please have the following information available: - Thermostat model number and serial code (located under the battery cover) - Type of heating/cooling system (hot water, warm air, oil, gas, etc.). - Number of wires connected to the thermostat. 23 69-1638-1

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23
69-1638—1
CUSTOMER ASSISTANCE
Visit us on the Web at www.honeywell.com/yourhome
or call Honeywell Customer Care at 1-800-468-1502.
Before you call, please have the following information available:
—
Thermostat model number and serial code (located under the battery cover)
—
Type of heating/cooling system (hot water, warm air, oil, gas, etc.).
—
Number of wires connected to the thermostat.
Heating does not come on
•
Check that the System switch is set to HEAT.
•
Check the system fuse or circuit breaker and replace or reset if necessary.
•
Check for correct wiring and good connections.
•
If display is blank or displays “bAt Lo,” install fresh batteries.
•
Allow time for the furnace to heat up and the fan to come on before
checking for heat at the register.
•
If temperature setting is higher than current room temperature and
SYSTEM ON arrow is displayed, thermostat is operating correctly. Contact
heating contractor for assistance.
Cooling does not come on
•
Check that the System switch is set to COOL.
•
Check the system fuse or circuit breaker and replace or reset if necessary.
•
Check for correct wiring and good connections.
•
If display is blank or says “bAt Lo,” install fresh batteries.
•
The thermostat has a built-in time delay on cooling. Allow 5-10 minutes
after changing setting before air conditioner starts.
•
If temperature setting is lower than room temperature and SYSTEM ON
arrow is displayed, thermostat is operating correctly. Contact ac contractor.
The house is too warm or too cool
•
Press RUN PROGRAM to check the current temperature setting.
•
If desired, change the temperature setting.
Furnace cycles too often or system
cycle length is too short or too long
•
Adjust the screws on the back of the thermostat.
The thermostat current setting does
not match the display temperature to
within plus or minus 1°
•
Plug the wiring hole in the wall behind the mounting plate with insulation to
prevent drafts that might adversely affect thermostat operation.
•
Be aware that it is normal for the current setting and the displayed room
temperature to differ on occasion.
•
During recovery from setback or setup, setting and displayed room
temperatures can differ for up to 30 minutes after recovery period.
If...
Then...