rating iconrating iconrating icon

Furnace Not Blowing Air

Furnace not blowing air

As the temperature gets lower more and more homes are using their furnaces. For many it could be the first time they are turning their furnace on this year. When you set your thermostat to heat mode, the typical process for a furnace is to use natural gas to heat the air and then use the blower to move the air through the ductwork and out the registers. What happens if you find your furnace not blowing air? You may start thinking about how much money a furnace repair might cost, but there are many different reasons for your furnace not blowing air. Some are easier to fix than others, but they do require you to contact a professional for furnace repair. Read on to find out what could cause your furnace to to stop blowing any air.

Thermostat Issues

First you will want to ensure your thermostat is set correctly to heat mode and no one else in the home has turned it off. For battery operated thermostats only check if your thermostat is displaying any error messages with the battery. Check the batteries and replace them with new ones. This does not apply to thermostats powered by the furnace. If your thermostat is old, consider upgrading to a new programmable or smart thermostat to automate a heating schedule that works best for you.

Capacitor Issues

If your furnace is not blowing air, it may be attributed to issues with the capacitor. Capacitors can go bad at any time. They can either stop working completely or be weak and can be checked with a multi meter. The capacitor in a furnace plays a crucial role in providing the necessary electrical boost to start the motor and keep it running smoothly. When the capacitor malfunctions or fails, it can disrupt the entire operation of the blower motor, leading to no airflow. This situation is often characterized by a furnace that might start up but fails to push warm air through the ducts. Capacitor problems can manifest as the motor struggling to turn on, making unusual noises, or shutting down prematurely. Addressing capacitor issues promptly is essential to ensure proper airflow, efficient heating, and to prevent further damage to the furnace components. Regular HVAC maintenance and timely capacitor replacements as part of furnace repair are key measures in maintaining the functionality of your furnace and the comfort of your home.

Burned Blower Motor

The blower motor is a critical component responsible for circulating heated air throughout your home. Burned blower can be due to excessive dust leading the motor to overwork, overheat and burn out. The indoor blower motor has openings to allow for air circulation and if these holes get covered in dust it can lead to overheating. It can also be due to mechanical issues with bad bearings or electrical with bad winding.

When the motor burns out, it can result in a complete failure of the airflow system. Burned blower motors often exhibit signs such as strange noises, a lack of response when the furnace is turned on, or an inability to maintain consistent operation. Addressing a burned blower motor requires professional furnace repair. A technician can diagnose the issue, replace the damaged motor, and ensure that the furnace is operating at its full capacity. Regular maintenance and prompt attention to motor issues contribute to the longevity and reliable performance of your furnace. If you suspect a burned blower motor, it's advisable to seek professional HVAC services for furnace repair to assess and address the problem promptly.

Bad Control Board

The control board, also known as the circuit board, serves as the brain of the furnace, coordinating and regulating its various components. If the control board is faulty, it will not send the power to the motor to start, disrupting the normal sequence of operations, leading to no airflow. Signs of a bad control board include the furnace not responding to thermostat commands, failure to initiate the blower motor, or irregular cycling. In the case of a malfunctioning control board, the system may struggle to start or fail to maintain a consistent flow of heated air. Depending on where you live and the furnace brand most equipment comes with a 5 or 10 year warranty. Addressing a bad control board requires professional furnace repair. Technicians can diagnose the issue, replace the faulty control board, and ensure that the furnace operates smoothly. Regular maintenance is crucial to detect and address potential control board problems early, preventing disruptions to the heating system.

Contact LA Construction, Heating and Air

We understand if you discover your furnace not blowing air you may feel alarmed. Take the time to check your thermostat and hopefully get your furnace back up and running quickly. If this does not solve the issue give us a call for help. You may call us or contact us online. Lack of routine maintenance can cause a lot of issues with your system, some of which could result in costly repair or replacement. At the very minimum you should service your AC once before summer, and your furnace once before winter. To help keep your system on a routine schedule, sign up for a bi-annual maintenance plan. We are here to ensure your furnace is running at its best and keeps you comfortable throughout the winter, give us a call today!

Furnace Not Blowing Air Related Posts:

Our Services

Air Conditioning Installation

For AC installation, our certified team ensures a professional and seamless AC replacement process. We perform a detailed load calculation to select the perfect AC unit for maximum energy efficiency. We handle everything from ductless mini-split systems to full HVAC system installation, guaranteeing a quality AC installation service that keeps you cool and saves you money. Learn more

two air conditioning units near los angeles
Technician talking to customer about ac

Heating Installation

We provide expert heating installation and furnace replacement services. Our certified technicians perform a thorough load calculation to recommend the best and most energy-efficient furnace installation. We manage every detail of your new heating system installation, from start to finish, to deliver a high-quality, reliable, and professional heating installation service.
Learn more

Air Conditioning Repair

At home or at your workplace, there's always the potential for sudden HVAC operating failure and the need for immediate HVAC repair. We'll put you back into the comfort zone ASAP. Our technicians are experienced, EPA certified, trained, background checked, drug tested, Workers' Compensation insured, uniformed, professional, and honest. They will diagnose your system and provide you with a written estimate for repairs.

Technician working with gauges near condenser
Person working on indoor ac unit

Heating Repair

When your heating fails, our team provides prompt and professional heating repair and furnace repair. We are experts at diagnosing and fixing a wide range of issues. We offer fast emergency heating repair to minimize your business's downtime, delivering reliable heating service that ensures your system runs safely and efficiently all winter. Learn more

Air Quality

Whether you're at home or at work, your health and comfort can be affected by poor air quality. And, the air quality is affected by the air temperature, the humidity, the quality of ventilation and any contaminants or irritants like indoor pets, pollen, dust mites, cleaning products, lead, Formaldehyde and Asbestos, Poor Air Flow, mildew and mold. Poor air quality can cause more than slight discomfort - much more!

Picture of zipper opening up on Los Angeles
HVAC Technician working on a unit on rooftop

Maintenance

As Benjamin Franklin said, an ounce of prevention is worth a pound of cure. Same idea applies to your central heater and air conditioner maintenance.Think of it as an oil change for your auto, which improves your car's engine performance, maximizes your gas millage and minimized down time by avoiding unnecessary repairs.

What our clients say

Shape- Social Media IconShape BG CTA

New In Our Blog

Piggy Bank with cash falling out near AC

What to Look for When Choosing a New HVAC System

Choosing a new HVAC system is a significant investment that requires careful consideration of your specific needs, from the size of your space to your budget and energy efficiency goals. The key to a successful project is not only selecting the right system type and features but also hiring a qualified, professional contractor in Los Angeles for proper and safe installation.

Piggy Bank with cash falling out near AC

Attic Fan Installation for Los Angeles Homes

Boost comfort in your Los Angeles home with attic fan installation. Discover how attic ventilation improves AC efficiency, protects your home, and keeps it cooler—especially when paired with a new AC installation.

Piggy Bank with cash falling out near AC

BWP Heat Pump Rebates & Installation in Burbank | Save Now

Learn how BWP heat pump rebates can lower your AC replacement costs. Maximize heat pump savings—contact LA Construction, Heating and Air for a free estimate.

Piggy Bank with cash falling out near AC

Air Conditioning Service for Los Angeles

Need air conditioning service in Los Angeles? LA Construction, Heating and Air provides expert AC maintenance, repair, and installation to keep your home or business perfectly cool.

Piggy Bank with cash falling out near AC

Commercial AC Repair: Recognizing the Red Flags in Your LA Business

Don't let a failing commercial AC disrupt your Los Angeles business. This guide helps you identify critical signs of trouble, from weak airflow to rising energy costs, ensuring timely commercial AC repair or installation.

Piggy Bank with cash falling out near AC

Expert AC Installation: Crucial for Longevity & Efficiency

Discover why professional AC installation in Los Angeles is crucial for peak performance & longevity. Avoid costly DIY risks. Trust LA Construction, Heating and Air for expert AC installation service!

We Install and Service All Major Makes and Models