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Not every blower failure is catastrophic. Some, such as a quick power surge that causes a breaker to trip, are actually quite mundane. Read on to find out some reasons that your HVAC blower might have stopped working.
That Breaker Trip
Circuit breakers are there for protection. First, the breaker trips so that any power surge won’t damage the equipment or home wiring. Second, it trips to protect you from electric shock if you happen to be standing next to your HVAC system for whatever reason. Third, it trips to protect your home from sparks that could start a fire.
A Faulty Ground
The ground connection is important for safety as well. When something’s wrong with the ground, it interrupts the flow of electricity through the system that will, in turn, cause the blower motor to stop. Unlike a tripped breaker, which only requires a flick of a switch, a bad ground requires the services of a professional.
A Different Electrical Fault
The speed controller regulates how fast the blower motor runs. If it’s kaput, then the motor will either run at the wrong speed or not at all. Running at the wrong speed is dangerous if the motor winds up going too fast. The capacitor that stores power to start the motor could also be bad, which would lead an otherwise sound blower to fail. Any of these problems will need a professional heater and air conditioner technician to diagnose and fix.
Something Wrong With Your Thermostat
Your thermostat could need batteries. It could have a bad wire inside it. If it’s a programmable thermostat, then it could just be set to the wrong temperature. An internet outage might affect a smart thermostat. It could also be that the thermostat has simply reached the end of its lifespan. Any of these situations could keep your system’s blower from turning on.
An Obstruction
Something could have come loose and is now blocking the blower fan from turning. This is dangerous because it can cause the blower to burn out. This is part of the reason that routine heater maintenance and AC tune-ups are essential.
Overheating
Almost all HVAC systems come with a fail-safe that will shut off the blower if it gets too hot. This is in the same category as the breaker tripping because of a power surge. If the blower overheats, then the damage could be disastrous if it’s not kept in check.
The most common reason that the blower overheats is a blockage somewhere in the system. It could be something as simple as clogs in the system’s air filter, or it could be something far more complicated. If you change the filter, and the system still overheats, then it’s time to call a professional.
A Dead Motor
Of course, the motor could simply have given up the ghost. Much as we’d like them to, machines don’t last forever. Fortunately, blower motors usually give you hints that they’re about to fail in this manner. They could sound terrible, for instance. They could also smell funny. It’s always wise to pay attention to your system to make sure that you notice any telltale signs.
Why Us?
At Bryant’s Heating & Cooling in Fort Payne, AL, we’ve been in business since 1981. We have the know-how and experience to handle any HVAC repair job you might need. During our more than 40 years in business, we’ve earned the respect of the industry as can be seen through our A+ Better Business Bureau rating and full accreditation. In addition to doing blower repairs, we can repair heat pumps, air conditioners, and ductless mini-splits. When it comes to smart thermostats, we can both provide you with new ones and troubleshoot the ones you already have. Our team provides installation of new cooling systems and heaters as well as repairing the old.
Whenever you need HVAC services in Fort Payne or nearby communities in Northeast Alabama, give us a call at Bryant’s Heating and Cooling to set up an appointment.
