How to Replace Blower Motor on a Furnace
The repair of a blower motor for a furnace can be fairly simple. To do this, shut off power and gas to the furnace and check the blower wheel. Discharge the motor capacitor and check for residual energy before replacing the blower motor. Be careful when working with electrical or electronic items, as they cannot be returned once they have been installed.
To replace the blower motor, you must first disconnect the power to the furnace. The blower motor is usually hard-wired into the primary electrical circuit, so be sure to turn off the circuit breaker at the electrical panel. Once disconnected, unscrew the mounting bolts and nuts, and unscrew the set screw that connects the wheel to the motor. You can remove the motor from the furnace by removing the front cover.
A faulty blower motor can result in a number of problems. The motor may be clogged, have a bad capacitor, be saturated with moisture, or simply be nearing the end of its lifespan. If you suspect that your blower motor is failing, you should schedule an HVAC technician with Video Chat a Pro to diagnose and remedy the issue. A faulty blower motor may also cause other problems, including the furnace not working at all.
To replace the blower motor, follow these steps: remove the fan guard grille. Next, remove the fan blade. Mark the location of the hub on the motor shaft. You can use a hub puller to help you remove the fan. If you notice any rust on the fan wheel, use a sand cloth to clean it. Finally, use penetrating oil to loosen the blower wheel from the shaft. Qualified HVAC technicians are ready to guide you step by step with your replacement blower motor installation. If you need help from a local HVAC company search here.
How Much Does It Cost To Replace A Blower Motor On A Furnace?
The cost of replacing a blower motor on a furnace can vary considerably depending on several factors. While a good motor should be inexpensive, name-brand parts are better, and you should look for these in the manufacturer's warranty. In addition to the labor costs, remember to factor in the cost of the parts and labor. Keeping your furnace inspected each year can extend the life of your blower motor. If you would like to replace the blower motor on your furnace yourself we recommend scheduling an HVAC DIY expert to guide you correctly through the repair. An HVAC chat online can save you hundreds of dollars and time.
If you're thinking about repairing your furnace yourself, consider the time and labor involved. Even minor repairs are time-consuming and require manual labor. If you're concerned about how much it will cost to replace a blower motor on a furnace, you may be considering HVAC DIY. Replacing your blower motor is a project you can do yourself but we recommend getting help from an HVAC professional through video chat.
Considering having a local HVAC company replace the blower motor? A professional HVAC company will give you a quote that includes the part price and labor costs. The price of a new blower motor for a furnace can range anywhere from $500 to more than $1,000. Local HVAC contractors on Video Chat a Pro can see the details and give you an estimate. Whether you need to replace the entire unit or just a particular part, the cost will depend on the type of motor you're looking for and the contractor you choose to install it.
A single-speed blower motor costs between $250 and $500, while a variable-speed motor costs $600 or more. The cost of replacing a blower motor on a furnace can vary significantly depending on the age and location of the system, and even your warranty plan.
Is It Hard to Replace a Blower Motor on a Furnace?
If you are having difficulty keeping the temperature inside the home, you may be wondering: Is it difficult to replace a blower motor on a furnace?
First, make sure that you turn off the furnace's main power source, and unplug the circuit breaker before you start. Locate the blower assembly, which is mounted on a cabinet. Slide it out from the furnace cabinet by unscrewing the two to four screws holding the control panel in place. Remove the old blower assembly and reconnect the new blower assembly. Taking pictures of the wiring can help you when to reconnect the old blower motor. Depending on your furnace's wiring, you may need to cut a few wires and disconnect the main unit from the motor. Then, remove the two or three bolts holding the motor's housing to the fan housing.
After disconnecting the old blower motor, you can proceed to unplug it from the main unit. Next, unscrew the screws holding the blower and motor in the furnace and remove the blower assembly. Be sure that the new motor matches the specifications of the old one. For instance, it must have the same horsepower, voltage, speed, rotation direction, and motor diameter. When you are finished, you can turn on the circuit breaker of your furnace and test the functionality of the new blower motor.
What Causes a Blower Motor to Fail?
A blower motor can fail for many different reasons, and you may be wondering what causes it to stop functioning. You should first check the voltage at the connector on the blower motor. It should be between 4-6 Volts on low speed, and 12 Volts on high speed. If it does not run, it may be damaged or stuck, in which case you must replace it. If it is stuck, the next step is to replace the blower motor.
A bad resistor can cause a blower motor to stop working. This type of failure usually occurs when the resistor is not functioning properly. If the resistor is bad, the motor won't receive power. In this case, the fan will not operate and will stay quiet. A bad blower resistor is a circuit component made up of several different resistors. Often, the blower resistor is designed to be in the highest speed state, where a maximum amount of current can pass through.
You may have a blown fuse or turned off the heating and cooling switch, or there may be a problem with a corroded electrical connector.
The shaft of a blower assembly can also be damaged, indicating that it has seized. In either case, you should replace the damaged component and video chat a professional HVAC technician to help repair your air conditioner.
How to Diagnose a Blower Motor That is Not Blowing Hard
When your blower motor stops working, you need to have it checked out by a professional. Sometimes, the blower motor may be clogged, the motor might have a bad capacitor, or the air ducts might be leaking moisture. It might also be near the end of its life. In this article, you will learn how to diagnose a blower motor that is not blowing hard.
When the airflow in your car is not strong, it's probably your blower motor. These fans are made to operate on high and low speeds to maintain an even temperature throughout your home. If they are not working properly, you'll need to replace the blower motor. Other issues with your blower motor could include a bad thermostat, faulty relay, or fan control issues. You should take action immediately if you notice a problem with your blower motor.
A faulty blower motor can also cause poor airflow in the cabin. Poor airflow can affect the efficiency of the defroster, which also uses the same fan. Having your blower motor checked by a professional is the best course of action. Otherwise, it might be a sign of a larger problem. To identify the exact cause of your blower motor failure, you should video chat an HVAC technician to help diagnose.