Sears Heating & cooling combined unit Parts — Browse All Models

Replacing the wall control thermostat for your Sears heating and cooling combined unit

• Shut off the house circuit breakers for your heating and cooling combined unit to disconnect electrical power.
• Remove the cover of the existing wall control thermostat. Follow the instructions in the owner's manual for the existing thermostat to remove its cover.
• Remove the thermostat mounting screws and pull the thermostat out from the wall slightly to access thermostat wires.
• Disconnect the thermostat wires and remove the existing wall control thermostat.
• Connect the wires to the new wall control thermostat.
• Mount the new thermostat to the wall using the mounting screws. Install the thermostat cover.
• Reset the house circuit breakers for the heating and cooling combined unit to restore electrical power.

Operating tips for your Sears heating and cooling combined unit

• Never operate the heating and cooling combined unit without a clean air filter properly installed. Inspect the air filter monthly and replace the air filter when it's dirty. A clogged air filter will increase operating costs and cause cooling problems.
• Keep supply air register vents and return air vents clear. Don't allow drapes, furniture, toys or other items to block supply or return air vents. Clean air vent louvers when they're dirty.
• Keep the outdoor condenser unit clear of shrubs, weeds grass and debris. Maintain a 1-foot clearance around the condenser unit for proper airflow.
• Jiggling the wall control thermostat causes rapid cycling in the control system and this can cause damage to air conditioner components. Don't move the temperature selector on the thermostat for at least 5 minutes between adjustments.
• Running the blower fan continuously minimizes temperature differences inside supply ducts and can lead to greater comfort and cooling efficiency. Consider running the blower fan constantly during hot summer months.