AC Repair: Signs That Your Blower May Be Having Problems

Often, AC Repair Sherman Oaks problems stem from issues with the compressor. Capacitors can blow, which prevents them from turning on the compressor and the outdoor fan. An HVAC technician can cut the power to the unit, drain and replace the capacitor, and get your AC back up and running.

AC Repair

The outdoor unit’s fan might also be clogged, preventing it from releasing heat. A technician can use a vacuum cleaner or a snake to clear the clog.

A filter is a small, porous screen that slots right into an HVAC system’s air duct compartment to block harmful airborne particles and contaminants. They can catch a wide range of materials, including dusts, powders, mold spores, fibers and certain microorganisms. Air filters improve indoor air quality, remove unpleasant odors and help protect people’s health.

Most AC filters are made from a basic material like strands of fiberglass or metal mesh arranged into pleats and are designed to stop large debris. Higher-end filters look more like surgical masks, containing fibrous materials that can trap smaller particles and bacteria and even viruses before they can recirculate.

If a dirty air filter blocks airflow, an air conditioning system must work harder to circulate conditioned air. This stresses the motor and compressor and can cause them to break down. It also reduces efficiency and increases energy bills, so it’s important to change your filter at least every three to 12 months (depending on the size of the filter) or as often as your AC pro recommends.

When shopping for air filters, pay close attention to the MERV rating system. The higher the MERV number, the more tiny particle the filter can trap. If you’re not sure what type of filter to buy, consult an AC professional or compare the different options at a home improvement store. It’s usually easy to install a new air filter; you just slide or pop the old one out and slide the new one into place, making sure it faces the correct direction. If you don’t have a tool kit to open your AC unit, a qualified technician can usually perform the replacement in a few minutes when they are already at your house performing a maintenance check.

Evaporator Coil

The evaporator coil, located inside your AC indoor unit, absorbs heat to cool the air and send it through the rest of your home’s ductwork. Dirty coils can lead to all sorts of problems, including insufficient cooling, high energy bills and premature unit failure. To prevent these issues, make sure you book your air conditioning services a few times a year to have your evaporator coil cleaned and checked for any signs of damage.

A dirty coil often means that the coil is covered in dust and debris, which acts as insulation and prevents it from absorbing heat. The dirt and dust also reduces its efficiency by blocking airflow, which can result in your AC working harder and costing more to operate. A dirty evaporator coil can also lead to refrigerant leaks, which should be repaired immediately because these can cause serious, costly problems for your AC unit.

Refrigerant leaks can be caused by corrosion, which happens when chemicals in the coil eat away at metal over time. It’s important to get your evaporator coil cleaned regularly to remove corrosion, and you should have your refrigerant levels checked by an experienced HVAC technician on a regular basis to ensure that they are in the optimal range.

If you notice that the air from your AC vents feels warm, it’s a clear sign that something is wrong with your evaporator coil. This can be caused by a number of problems, including that it’s leaking, frozen or that it’s not absorbing heat. In the latter case, replacing only the evaporator coil won’t fix the problem – in fact, it will likely cause other parts of your air conditioning system to work harder and increase your energy bills.


The blower is responsible for pulling air into your HVAC system and circulating it throughout your Anderson Creek, NC home. It works with the evaporator coil to heat or cool your home, and it’s important that your blower motor stays in good shape to ensure proper airflow. Here are a few signs that your blower may be having problems:

A loss of airflow from the vents is one of the most common signs that there’s an issue with your blower. This could mean that your air filter is clogged, or it might be an indicator of a problem with the blower motor. If you notice this problem, it’s best to call a professional and schedule an AC repair service for your system.

Another sign that the blower motor might be having problems is an increase in your energy bills, which is caused when a malfunctioning blower works harder to compensate for its lack of efficiency. In addition, if you notice a burning smell, this is a serious symptom of overheating and should be addressed immediately to prevent a potential fire.

Finally, if you hear strange sounds from your air conditioning system, such as squealing or screeching, this is a likely indication that the blower motor needs to be replaced or lubricated. Loud banging noises indicate a more serious problem and should be addressed by a professional right away.

While it’s normal for a blower motor to have some issues over time, you can help yours last longer by scheduling routine maintenance visits. During these appointments, technicians will clean the blower fan cage, balance the fan blades, and lubricate the bearings to keep them moving properly. Additionally, a technician will inspect the evaporator coil for any signs of damage and clogging.


Your AC’s contactor is a key component that controls the flow of electricity to the compressor and fan motor. It acts like a switch, connecting and disconnecting the power supply lines based on your thermostat’s signal. If there are visible signs of wear like pitting on the contactor, that’s a clear indication that it needs to be replaced right away. The contactor is also prone to overheating, a problem that can cause damage to the fan motor and other components.

One of the most common symptoms of a bad contactor is short-cycling, which means that your AC cycle on and off repeatedly in quick succession. This is a sign that the contactor can’t connect or break the electricity supply line properly. A professional technician can evaluate the condition of your contactor and determine if it’s the culprit for the short-cycling.

Other signs of a bad contactor include chattering or humming noises. These sounds are caused by the metal coils and plunger rubbing together and creating friction. This can eventually result in the contacts welded together or separating completely. A faulty contactor can also cause overheating issues, since it may fail to provide a consistent flow of electricity to the compressor and fan motor.

If you suspect your AC contactor is bad, it’s best to leave the replacement and repair to an experienced professional. Attempting to do it yourself can lead to electrical damage, injuries, and even voided warranties. While your HVAC technician is repairing or replacing the contactor, they can also conduct other maintenance tasks such as cleaning the condenser coils and checking refrigerant levels. This will help ensure your cooling system stays in good condition and continues to work efficiently.


You may not give much thought to the thermostat in your home, but this little box contains a huge amount of technology that affects how your HVAC system operates. The thermostat sends instructions to the air conditioner and blower fan that allow it to cool the house down to a set temperature. Even the smallest thermostat malfunction can cause AC problems that may not seem significant to homeowners.

A faulty thermostat can be caused by many different things, such as dust and debris on the board or wires or just old age. Most modern thermostats have display screens that will indicate a problem with the unit, such as a message saying “call for service.”

Some older thermostats will simply stop working altogether. If this happens to yours, it’s time for a replacement. The most common thermostat issues are a problem with the temperature setting or that it won’t turn on at all. These can often be fixed by resetting the thermostat or changing the temperature setting.

If your thermostat is constantly tripping the circuit breaker, it’s probably time for a new one or to call an electrician to have a closer look at the wiring. Resetting the breaker is a simple fix, but you should avoid this as a long-term solution, as repeated tripping can be indicative of other problems in your AC.

It’s also a good idea to keep the thermostat away from heat sources such as sunlight, other appliances, heater vents, windows, or hot-water pipes. These can affect the thermostat’s ability to read the room’s temperature accurately and will throw off the cooling signal. If you have a thermostat with batteries, change them to ensure they’re fresh and have the proper voltage.

Hi, I’m Alysha Brewer