How do I increase the blower speed on my HVAC?

You can increase or decrease the blower speed by slightly adjusting the pulley on the blower drive motor. To increase blower speed, slightly loosen the setscrew that holds the pulley to the driveshaft. Move or turn the pulley clockwise on the shaft one turn, then tighten setscrew.

Do furnace blower motors get weak?





Weak Airflow from the Vents



There are a number of possible reasons why this is happening, including dirt and dust buildup, bad capacitor, and an aging motor. If your blower motor is dirty or has a bad capacitor, you can call in an HVAC technician to fix the problem.

Can I install a more powerful blower in my furnace?

Yes, most blower motors are designed to be universal, meaning that they can typically be swapped in furnaces of a different brand. This means that if you have a Goodman furnace, you may be able to purchase a blower motor that isn’t made by Goodman as a replacement.

How long should a blower on a furnace last?

Even though the manufacturer states their blower motor will last two decades, we advise all clients to expect a 10-20-year life span due to age, use, and proactive maintenance.

Can you upgrade your furnace blower?

Both your heating costs as well as the comfort level inside your home can benefit by upgrading from an outmoded PSC unit to an ECM furnace blower motor. It’s a good bet that the motor inside your existing furnace blower is a PSC (permanent split capacitor) type.

How do I check the blower speed on my furnace?





Quote from the video:
We have our multimeter set on resistance. And we're measuring in ohms. And we have our red probe connected into our common wire for our blower motor.

Is my AC blower motor Bad?

If your AC is on, you will hear the compressor and should see the fan blades turning. If the AC is on and the blades are not moving, there is definitely an issue. If you hear a rattling noise coming from your condenser unit when the fan turns on, your AC fan motor is likely acting up.

What does a bad furnace blower motor sound like?

Loud clanking or scraping, classified as a metal-against-metal sound signals a serious problem with the furnace’s blower wheel. Most likely the blower fan has become loose and is creating the sound by hitting against the blower house casing.

How do you know if your HVAC blower motor is bad?

Signs of an Overheating Blower Motor

  1. A “hot” or burning smell from vents in the home. This symptom is often coupled with the furnace shutting off completely. …
  2. Loud humming and other unusual noises. We have many homeowners call us mentioning humming and other odd sounds. …
  3. Furnace cycles off and refuses to restart.



How much does it cost to replace a furnace blower?

On average nationwide, a furnace blower motor replacement costs $400 to $600, including parts and labor. A single-speed blower motor costs around $450 to replace while a variable-speed motor costs $600 or more. You’ll also need to budget labor, about $75 to $125 per hour.

How much does it cost to replace an AC blower motor?

“A new car blower motor costs about $50 to $100 for the part and $80 to $100 in labor. Add it up and you’re looking at a total charge of $130 to $200 for a new car blower motor.

How long does an AC blower motor last?



10 to 20 years

The blower motor in your home or office should last anywhere from 10 to 20 years. Modern sealed bearings and sealed bushings can push the lifespan to its maximum of 20 years.

How long is the warranty on a blower motor?

Most manufacturers for residential units will have a 5 year parts warranty that will cover any failed component within the system, although more manufacturers are offering up to 10 years on parts now. Some of these parts are the evaporator coil, compressor, fan motor, blower motor.

How do you lubricate a blower motor on a furnace?

If the motor has oil ports, it should be lubricated annually. Apply two or three drops of 10-weight nondetergent motor oil (not all-purpose oil) to each port. Do not overlubricate. If the blower shaft has oil ports, it, too, should be lubricated annually, following the same procedure.

How do I make my furnace blower quieter?



How to Quiet a Noisy Furnace Blower: 9 Easy Ways

  1. Adjust Furnace Fan Speed.
  2. Clean Furnace Blower Fan.
  3. Replace Furnace Blower Bearings.
  4. Check Motor Mount for Loose Connections.
  5. Tighten the Set Screw.
  6. Change The Belt Drive.
  7. Try Sound Insulation Solutions.
  8. Replace The Motor or Fan Blade.

Why is my furnace fan so loud?

Loud noises coming from your furnace while it is running could be caused by any of a number of issues. For example, you may have a problem with the fan that blows hot air through your vents. That might be due to the fan bearings being worn out. In that case, these bearings will need to be replaced.

How do I lubricate my furnace blower bearings?

Quote from the video:
You're going to get the side of it you can oil and while or in but sometimes it's really hard to do so you may need to pull the blower assembly out in order to oil it.

Why does my furnace make a high pitched noise?

A high-pitched squeal coming from your furnace is usually the result of an issue with the blower. The blower in your furnace is powered by a motor, which has bearings that can wear out because of age or overheating. Overheating is usually caused by dirt buildup or a bad capacitor.

How do I stop my furnace from squeaking?



Schedule appointment today!

  1. Make Sure Your Furnace Is Clean.
  2. Make Sure Your Vents and Ductwork Are Unobstructed.
  3. It Could Be a Loose or Worn-Out Fan Belt.
  4. It Could Be the Blower Motor Bearings.