Carrier Heating & cooling combined unit Parts — Browse All Models

Common repair parts needed for Carrier heating and cooling combined units

• Float switch. The float switch detects a clog in the evaporator condensate drain system. The float switch shuts off the heating and cooling combined unit if it detects water backing up into the evaporator
• Air filter. The air filter is located at the intake of the blower assembly. It removes dust and debris from intake air.
• Blower assembly. The blower assembly is the air handler that circulates air through the evaporator in the heating and cooling combined unit. It consists of an outer case, a blower motor and blower wheel.
• Wall control thermostat. The wall control thermostat is a temperature control device that mounts on a wall inside your home. The thermostat monitors temperature inside your home and tells the heating and cooling combined unit when to start and stop.

How to troubleshoot your Carrier heating and cooling combined unit when it won't start

• Check for electrical power.Check the house circuit breaker for the heating and cooling combined unit to make sure it’s turned on. Reset the circuit breaker if it’s tripped.
• Check the condensate drain.Heating and cooling combined units often have a float switch mounted on the evaporator condensate drain pipe that shuts off the air conditioner if condensate water isn't draining. Shut off power to the heating and cooling combined unit and check for condensate water backing up in the evaporator drain system. Clear the drain to reset the float switch and restore power to the heating and cooling combined unit.
• Check the thermostat. Make sure you have the thermostat set correctly. Adjust thermostat settings if necessary. If the thermostat doesn't have power, check its wiring and reconnect any loose wires. Replace the thermostat if it isn't working.
• Examine the electronic control board. Disconnect electrical power to the heating and cooling combined unit and check the electronic control board wiring connections. Reconnect any loose wires and repair any broken wires. Check for burn marks on the circuit board and replace the electronic control board if you see burnt spots or melted wires.

When you need heating and cooling system service and you're looking for Carrier HVAC near me to find a service provider, you'll discover that Sears Home Services has local technicians in your neighborhood to help you with repair and maintenance of all Carrier HVAC units.