What Can Cause a Blower Motor to Stop Working and How to Fix It

What Can Cause A Blower Motor To Stop Working And How To Fix It

The blower motor is generally one of the cardinal parts of an HVAC system. In AC, the blower motor is the part that blows air through the vents of your HVAC system to ensure proper cooling and heating of your home. 

A faulty blower can bring discomfort or may lead to safety hazards. Knowing the common causes of blower motor failure and how to fix them can save much time and money.

1. A Bad Fuse 

One of the most prevalent factors that can cause a blower motor to stop working is a blown fuse. A fuse prevents electrical circuits from an excessive flow of current that may run in them. Over time or due to any sudden surge, it might blow the fuse and cut power to the blower motor. Checking and replacing the blown fuse often solves the problem in no time.

2. Bad Ground Connection 

A faulty ground connection will indeed disrupt electricity flow, causing a blower motor to fail. This may be due to corrosion, loose wires, or a disconnected ground wire. The problem would definitely be fixed and prevented by ensuring that the ground connections are tight and rust-free. You'll need to bring in the professionals for this issue.

3. A Faulty Speed Control Module 

The speed control module controls the blower motor's speed. If the module goes bad, your motor can not work or will run at the wrong speed levels. The diagnosis of a faulty speed control module is very complex and would have to be done by a professional.

4. A Failed Motor 

An HVAC blower motor will occasionally fail due to age, wearing out, or not being cleaned regularly. Symptoms may include strange noises, burning smells, or just plain refusing to turn on. If this happens and the motor is no longer operable, a new blower motor may be needed.

5. Overheating 

Overheating is one of the most frequent occurrences that can render the blower motor inoperative. If the motor has overheated, it may shut itself down to prevent damage. You should keep your HVAC clean and clear of any blockages or debris to avoid overheating and maintain efficiency.

Final Thoughts 

Most of these elements can be avoided by regular maintenance and time-to-time repairs done by an expert. If you are having trouble with your blower motor, don't hesitate to contact Moncrief Heating & Air Conditioning. We offer prompt, quality services for HVAC in Sandy Springs and surrounding areas, ensuring your home remains comfortable all year round.