Carrier Furnace Blower Speed Adjustment

Step 1 turn off the power source that is connected to the furnace blower.

Carrier furnace blower speed adjustment.

Current high efficiency furnaces can be rated up to 98 5 afue which can reduce utility costs over the life of the furnace. On most control boards there will be a jumper that is marked to show that it controls the speed. Step 2 carefully disconnect the wires from the coolant terminal which is located on the back of the unit. Turn it off again for 1 3 seconds and back on.

That should bump the fan speed up one level doing so each time will increase one speed until it cycles back to low. Blower fan speed adjustment options fan speeds provided inside the air handler unit may be set or adjusted by the remote control for a wall mounted split system air conditioner or heat pump changing the fan wire connection between the fan on relay and the fan motor selecting a high medium or low speed right on the fan motor itself. Your furnace shows that you have an ecm motor which is an electronically controlled motor. Then switch the jumper to your desired speed.

With no call for heat or cool turn your circulation fan to on. Usually there will be three speeds ranging from 40 to 100 of airflow. My paperback and e book. Low speed furnace fan blower motor will not shut off.

Every furnace must have an adjustable blower. Your installer should know how to change speeds if he set the furnace up properly. Consult your blower s owners manual to determine what your furnace blower s speed should be. In many cases our carrier high efficiency furnaces also include technology that can produce enhanced comfort benefits and quieter operation as well.

There should be low voltage speed taps on the main board for speed adjustments in cooling and heating. It will not change heating or cooling fan speeds. Most of these are on the bottom left of the control board. The wires are several different colors.

Your furnace elements have a certain wattage.