If you’re experiencing issues with your furnace, such as a noisy fan or rotten egg smell, it’s possible that the problem lies within the blower or control board. Luckily, there are plenty of ways to repair your heating system, from replacing a broken part to rewiring the entire system.
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Blower Motor
A furnace blower motor is a part of your heating and cooling system. If it is damaged, it will require repair or replacement. While some of the problems can be easily resolved, some may require replacement of the entire unit.
A dirty motor can overheat and cause mechanical failure or electrical shorts. It can also produce a burning smell in your home’s air ducts.
Overtime, the blower can become clogged with dirt and debris. The buildup of dust particles inside the blower assembly can create banging noises during operation.
In older models, the motor may be bolted to the side of the blower. Newer models are direct-drive. These models do not require a fan belt.
Regardless of the type of furnace, a furnace blower motor can wear out over time. To prevent this, you should clean your furnace and its blower periodically.
Run Capacitor
If you’re hearing a strange humming noise coming from your furnace, it may be time to replace the run capacitor. It is a small part of the fan motor that gets the blower started and helps to circulate heated air.
The basic function of a capacitor is to store charge and then release it over a period of time. However, there are some other factors that can affect the lifespan of a capacitor. For instance, the type of dielectric material used can affect the capacitance of the capacitor.
A capacitor can be dangerous if not installed properly, or if it is installed incorrectly. This can lead to problems with your entire HVAC system. So, if you have a problem with your capacitor, it’s best to contact a professional to repair it.
Control Board Or Transformer
A control board or transformer can be a source of problems with your furnace. These components are responsible for distributing power to various furnace parts. If these elements are worn out or damaged, you may notice a variety of malfunctions.
The first step in diagnosing the problem is to turn off your furnace and disconnect the control board wires. After that, you can test the circuit to see if it’s working.
One way to do this is to use the door switch on your furnace repair to test the power coming into the control board. If it works, then the control board is functional. However, if it doesn’t, it could be time to replace it.
Another way to tell if your control board is in good condition is by using a voltage meter. This will tell you if you are receiving the right amount of power into the control board.
Rotten Egg Smell
If your home has a sulfur odor, it could be a result of a natural gas leak. However, it’s also possible for the smell to be a result of contaminated water.
There are many ways to fix a rotten egg odor, including using a reverse osmosis unit under the sink. You may also want to change the air filters in your furnace.
If the smell is coming from a drain pipe, you may have a blockage. Another cause of the rotten egg odor can be a bad anode rod. The anode rod is responsible for introducing the sulfur smell to the hot water. A zinc and aluminum anode rod will help eliminate the smell.
Water heaters are also a potential source of the rotten egg odor. Water heaters can be sterilized by turning the temperature up to 160° for a few hours. This will kill most of the bacteria in the tank.
Fan Won’t Shut Off Or Just Runs Continually
Fans in your HVAC system are not supposed to run continually or for hours on end. If you have an indoor fan that won’t turn off or seems to run on autopilot, it is likely because you have a problem.
There are many things you can do to fix your fan problem. However, you should be aware that you may need to contact a professional HVAC technician. Some of the most common problems include stuck relays and faulty thermostats.
One of the most obvious ways to fix your air conditioner’s fan is to switch it off. You should also make sure your fan is set to an auto setting, which will cause it to run only when your air conditioner runs.
Another option is to try switching your fan off at the emergency shut-off switch. This will reset your blower motor. Get the top furnace repair company.
