How to Clean a Furnace Blower
Maintaining the blower assembly of your furnace clean will improve efficiency and performance because it allows air to flow without obstruction. This procedure involves a series of steps. You may want to hire an expert to complete the work. If you opt to tackle it yourself, here’s how to do it.
The first step is to turn off the power supply to the furnace. This is done at the breaker or fuse box. Turn off the fan and furnace switches within the unit. Also, turn off your thermostat.
Next, you must take the blower assembly from the furnace cleaning service furnace. For this, you need to disconnect the wiring harness for the fan motor connector. You must create your own circuit diagram that shows how the wires are connected prior to take the action of disconnecting.
To take the assembly off Take the screws out and slide them out. Be careful not to contact those terminals that connect to the capacitor that is likely to be attached to the outside from the blower unit. There might be refrigerant lines that are in this region. Be sure not to bend them until they can crimp.
Third third, if the capacitor connected to the blower housing remove it from the housing and discharge it off. If you’re unable to locate that capacitor isn’t needed to be present on your unit, or is found somewhere else within the furnace, and you can proceed for the following step.
If you find the capacitor in the side that is the house, you can remove the wires by using the help of needle-nose pliers. You should ensure that they have an insulated grip that will prevent electrocution. Don’t contact the terminals.
It is possible to discharge the capacitor with a resistance-type jumper. If you’re not sure how to use a jumping device or a jumper, consult an expert. If the capacitor is discharging, it’s time to eliminate it.
Fourth, remove the blower wheel and the motor from the housing. Then mark the area that the hub rests upon the fan shaft as this part must be replaced exactly at the same location.
To take the wheel off to remove it, loosen the screws. Then , turn the housing upside down and take off the bolts for the motor bracket. Reverse the housing and, using the help of a piece of two-by-4, gently knock the motor as well as the shaft from the wheel. Also , remove the deflector section inside the house by taking out the screws.
Then, clean the blower wheel as well as the ac coil cleaning. It is easiest to employ a spray wand in the auto wash in order to clean the wheel however, don’t aim the water towards the wheel with full force to prevent bending the fins of the fan. Clean the motor using a soft bristle (no liquid).