HVAC Blower Repair or Replacment

Published by Mike Peterson on 10th May 2023

HVAC (Heating, Ventilation, and Air Conditioning) systems are an essential component of modern homes and buildings. They help regulate indoor temperature and air quality, making indoor living more comfortable and healthy. One of the critical components of an HVAC system is the blower, which helps circulate air throughout the system. If the blower isn't working correctly, your HVAC system won't function correctly. In this blog post, we'll look at common issues that cause blower problems and how to fix them.

Common Causes of HVAC Blower Problems

  1. Electrical Issues: Blowers require electricity to function correctly. A tripped circuit breaker, blown fuse, or damaged wiring can all cause the blower to malfunction.
  2. Motor Issues: HVAC blowers are powered by electric motors. If the motor is defective or worn out, it won't be able to turn the blower wheel, which will cause the blower to stop working.
  3. Fan Issues: HVAC blowers use a fan (blade or wheel style) to move air that is heated or cooled. If the fan is damaged or out of alignment it will result in poor or no performance.
  4. Dirty Air Filters: Air filters are an essential component of an HVAC system, and they need to be replaced regularly. If the air filters are clogged with dirt and debris, it can cause the blower to work harder than it should, which can lead to overheating and damage.
  5. Belt Issues: Some HVAC systems use belts to connect the blower motor to the blower wheel. If the belt is worn out or broken, the blower won't function correctly.

How to Fix HVAC Blower Problems

  1. Check the Power Supply: If the blower isn't working, the first thing you should do is check the power supply. Make sure the circuit breaker is in the "on" position, and the fuse isn't blown. Check the wiring to ensure there aren't any visible signs of damage.
  2. Check the Motor: If the power supply is fine, the next step is to check the motor. Turn off the power to the HVAC system and inspect the motor for any signs of damage or wear. If the motor is damaged, it will need to be replaced.
  3. Check the Fan: Disconnect the drive from the motor and inspect for damage. If the fan (blade or wheel style) is damaged it will need to be replaced.
  4. Replace the Air Filters: Dirty air filters are a common cause of blower problems. Replace the air filters and see if that fixes the problem.
  5. Check the Belt: If your HVAC system uses a belt to connect the blower motor to the blower wheel, check the belt for signs of wear or damage. If the belt is damaged, replace it.

In summary, HVAC blower problems can be caused by several issues, including electrical issues, motor issues, fan issues, dirty air filters, and belt issues. If your HVAC blower isn't working correctly, start by checking the power supply and then move on to inspecting the motor, air filters, and belt. If you're not comfortable performing these checks yourself, it's best to call a professional HVAC technician who can diagnose and repair the issue for you. You can also bring your blower to Palmer’s Electric Motors and Pumps where we will perform a thorough inspection and suggest an appropriate repair or replacement.