5 Indicators Your Furnace Wants a New Motor Blower

Nobody desires to have their HVAC system fail when the climate is chilly in winter, or blazing sizzling in summer time. In case your central heating and cooling system isn’t working appropriately, you should determine the problem, and get it mounted.

There are lots of issues that may trigger your air-con and furnace system to function incorrectly. Typically it’s a damaged element that must be changed. On this article, we have a look at some indicators that your furnace blower motor is malfunctioning, and when you could have it changed.

How Furnace Blower Motors Work

The blower motor in your HVAC system blows the heated or cooled air via the vents in your house. The air that’s heated by your furnace or cooled by your AC unit strikes via your property till every room reaches its desired temperature.

There are two major forms of drives in furnace blower motors:

• Direct drive motors join on to the furnace blower wheel. These are the commonest, and most fashionable gasoline furnaces use these kinds of motors.
• Belt drive motors are much less widespread for residential furnaces, as often solely very outdated furnaces use belt drive. In a drive belt motor, the motor pulley is linked to a fan pulley mounted on a shaft to show the blower wheel. You’ll typically see belt drive motors in industrial heating and cooling.

With residential furnace blower motors, there are additionally two forms of speeds:

• Single velocity blower motors blow air at one velocity: full blast till the goal temperature is achieved. When the temperature is hit, it shuts off. When the room temperature falls out of vary, then the one velocity blower activates once more.

• Variable velocity blower motors function at completely different speeds, because the identify implies. One factor that may be counterintuitive is a variable velocity blower is extra vitality environment friendly. It’s because it retains the temperature of your property evenly distributed. When the goal temperature falls out of vary, the variable velocity blower operates at a decrease velocity. When the temperature hole is giant, the blower operates at a better velocity.

What Causes Blower Motor Failure?

Like different elements in your HVAC system, the blower motor can put on down over time. A number of the causes a blower motor may fail are overheating, and extreme moisture. When mud, filth, and particles construct up, it could trigger the windings and bearings to expend extra rapidly. Furnaces are often put in in an out-of-the-way location, just like the attic, basement, storage, or utility room. Blower motors which are clogged with particles, or that turn into saturated with moisture can fail attributable to overworking or electrical shorts.

One thing to contemplate when changing the blower motor in your HVAC system is how typically you might be paying for repairs. Most residential furnaces ought to final between fifteen and twenty years. Common HVAC upkeep can lengthen the lifetime of your furnace even longer. Nonetheless, in case you are paying to interchange the blower motor each few years, and the lifetime of your furnace is getting older, it could make extra monetary sense to get a alternative furnace as a substitute of paying for more and more frequent repairs.

What Are Indicators Your Blower Motor Must Be Changed?

These are some sure-fire indicators that your furnace motor blower must be repaired or changed?

1. Poor or Airflow from Air Vents

This would be the first and most blatant signal your blower motor has an issue. It could or might not point out that you simply want a alternative motor. If there isn’t a air or very weak airflow coming from the air vents, the motor could also be clogged, or it could be malfunctioning. It’s attainable that the motor is clogged with filth and mud, or has a nasty capacitor, or there could also be leaky air ducts. If the motor has been overheating, has been saturated with moisture, or is nearing the tip of its service life, it would must be changed. A licensed HVAC technician can let you know precisely what the problem is should you’re experiencing weak airflow.

2. No Airflow At All From Vents

If there isn’t a air in any respect coming out of your air vents once you activate the warmth, the blower motor could also be fully damaged. Getting a alternative motor blower could be the one alternative at that time. There could possibly be different cause why there isn’t a airflow altogether, akin to a nasty relay, a defective thermostat, or a fan management concern.

3. Skyrocketing Power Payments

The blower motor is the element in a central HVAC system that consumes essentially the most vitality. If you have already got a variable velocity blower motor in your furnace, and the motor is just not clogged with particles, the motor could also be carrying down and approaching finish of life. Soiled blowers have to work tougher to push conditioned air via your air ducts, however this can be an indication of a deteriorating blower motor. Additionally it is attainable that your air ducts have a significant leak.

4. Unusual Noises When You Activate the Warmth

For those who hear unusual noises once you run your furnace, akin to squealing, screeching, rattling, or clanking, name a heating contractor at your first comfort. Some points could also be repaired simply, however others might require a blower motor alternative.

Screeching or squealing noises might be indicative of bearing issues in direct drive furnaces, or belt points in older belt drive furnaces. Now, in case your heating system is making rattling or knocking sounds, that often means a damaged or broken half. Banging sounds are extra severe, and typically implies that the blower motor should be changed. A certified HVAC technician must make an intensive inspection to verify what the issue may be.

5. Overheating Blower / Bizarre Smells

In case you have an overheating blower motor, there will likely be clear indicators. One could be a burning odor coming out of your air vents each time you run the warmth. One other signal is that if the system shuts down, or if the blower stops when you are working the warmth. This implies the blower motor is overheating. In case your system is shutting down to stop electrical harm, or if the blower is shutting down, name a licensed HVAC contractor as quickly as attainable.

Changing Your Furnace Blower Motor

Your native licensed HVAC contractor will help you discover and set up the right blower motor in your HVAC system. The heating contractor should get some details about your furnace and take a couple of issues under consideration, together with the kind of drive, the diameter of the motor, rotation route, horsepower, voltage, speeds, and dimension of the capacitor. Based mostly on these particulars, the HVAC firm could make the precise suggestion, provide you with an estimate, and schedule an set up.

Discovering a HVAC Contractor for Heating Restore

Ventwerx HVAC will help householders with a alternative blower motor in your furnace, or another residential heating restore. We serve the San Jose space, in addition to Morgan Hill and Gilroy. We’re licensed and bonded, and have served the South Bay and Central Coast since 2007.

For those who want furnace restore or furnace alternative, fill out a service request, or name (408) 422-2987 in San Jose or (408) 710-9595 in Morgan Hill.