For most furnaces, your blower motor will be located in the base of the unit next to the air filter. For most ACs and heat pumps, it will be located inside the air handler (i.e., the indoor unit). It's also possible that certain units may share a blower motor in the air handler—typically with an AC and furnace.
Most blower motors are controlled by a red or black switch on the side of the unit. Hold the button down for a few seconds (the manual will tell you precisely how long), then release. Replace the Panel and Restore Power.
Locate the blower: Find the blower assembly within your HVAC system. This usually involves removing an access panel on your air conditioner. Give it a clean: Use a vacuum cleaner to gently remove dirt and dust from the blower fan and blower wheel. Be mindful not to damage the delicate fan blades.
For most furnaces, your blower motor will be located in the base of the unit next to the air filter.
Having a dirty blower wheel will make your HVAC system work harder and, if not addressed, eventually cause your AC system to stop working. A dirty blower wheel will also contribute to a high electric bill. Damage caused by a dirty blower can be costly to fix– but can be prevented too!
In AC systems, the air conditioner reset button is on the outside unit's lower edge, typically close to the ground. Some models have the reset button located behind the service panel, which may require tools to remove. Reset buttons are usually red or yellow with a clear “reset” label.
Installing a new heating and air conditioner blower motor could cost around $150 to $250, with most of that coming from labor costs. HVAC technicians usually go for around $75 to $125 per hour. A blower motor replacement might take anywhere from one-and-a-half to two-and-a-half hours.
First, check your filters and coils for dirt and debris that may be impeding airflow. Once you've cleaned the filters and coils, run the air conditioner with just the fan so that the ice accumulation can melt off. If the AC still doesn't blow cold air, it could be that refrigerant levels are too low.
All central heating and cooling systems should have an air filter, but some HVAC units make filters harder to locate. The filter is commonly located in a return air grille, within the air handler, or external to the air handler in a filter rack.
Your AC's blower motor is responsible for moving air through your air conditioner to cool it and then pushing it back out into your home. Without this incredible component, your AC can't provide any cooling effect, no matter how much the compressor runs.
Without the motion of the fans, the air will not be moved properly, and thus the until will not cool your home. The best way to keep your AC fan motor running properly is to ensure it gets regular maintenance and air conditioning repairs by a professional.
Blower motors are designed to last just as long as your furnace itself, anywhere from 10 to 20 years. Just as with any HVAC system, the better maintained and serviced your equipment is by experienced HVAC technicians the longer it will last and the fewer repairs you'll face.
Not all air conditioning units have a reset button, but if yours does, it's typically located on the outdoor unit. Here's how to locate it: Turn Off the Power: Before you search for the reset button, ensure the power to the unit is turned off for safety reasons.
Check the thermostat
You should check if it's been set to the correct temperature and also make sure it's set to “cool”. If the AC settings are not right, it won't turn on. You can also check if the batteries in the thermostat are fresh and replace them if needed.
An outside AC fan not spinning could be caused by power supply issues, a faulty capacitor, a burnt out motor, contactor issues, wiring problems, debris or obstruction, a faulty thermostat or control board, or frozen evaporator coils. Contact your local Carrier dealer to help troubleshoot the issue further.
A blower wheel is designed to keep air moving in and out of your HVAC system, and after years of use, dirt can build up on the blades. Most blower wheels need to be pulled and cleaned every 3-5 years, depending on usage and the home.