Carrier Furnace Blower Speed Adjustment

That should bump the fan speed up one level doing so each time will increase one speed until it cycles back to low.

Carrier furnace blower speed adjustment.

Consult your blower s owners manual to determine what your furnace blower s speed should be. Low speed furnace fan blower motor will not shut off. On most control boards there will be a jumper that is marked to show that it controls the speed. This only affects the fan in circulation mode.

Most of these are on the bottom left of the control board. Your furnace elements have a certain wattage. Your furnace shows that you have an ecm motor which is an electronically controlled motor. Usually there will be three speeds ranging from 40 to 100 of airflow.

Step 2 carefully disconnect the wires from the coolant terminal which is located on the back of the unit. Your installer should know how to change speeds if he set the furnace up properly. There should be low voltage speed taps on the main board for speed adjustments in cooling and heating. 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.

Then switch the jumper to your desired speed. My paperback and e book. Turn it off again for 1 3 seconds and back on. It will not change heating or cooling fan speeds.

Adjusting the fan speed for the furnace is not something to do just because you want it quieter or to save electricity. Every furnace must have an adjustable blower. Current high efficiency furnaces can be rated up to 98 5 afue which can reduce utility costs over the life of the furnace. The wires are several different colors.

Thermostat fan control on old furnace without circuit board.