In general, a blower motor should last for the lifetime of your vehicle if it is properly maintained. However, it is not uncommon for blower motors to fail prematurely due to factors such as wear and tear, corrosion, or electrical issues.
The blower is supposed to last the entire lifetime of your car. However, situations vary and some climates require the fan to be used too often. Many car owners find themselves having to replace the blower after five years. The quality of the motor used to power the blower matters.
Typically, the blower motor in cars is designed to last for as long as the vehicle does.
The average cost for a Blower Motor Replacement is between $342 and $362. Labor costs are estimated between $68 and $86 while parts are priced between $274 and $276. This range does not include taxes and fees, and does not factor in your unique location.
More specifically, systems that include blower motors have a lifespan of roughly: Air-Source Heat Pumps: 10 to 12 years, with a maximum of 15 years or more. Furnaces: 10 to 20 years, depending on maintenance schedules. DX Air Conditioners: 15 to 20 years, depending on maintenance schedules and manufacturer quality.
The most common reason why your blower motor won't work on any speed is that you have a bad or blown a fuse.
A defective ground wire or ground wire connection and an open circuit in the power-side circuit (including the fuse, wiring, and fan switch) are the most common reasons why a blower motor fails.
Overheating is one of the most frequent occurrences that can render the blower motor inoperative. If the motor has overheated, it may shut itself down to prevent damage. You should keep your HVAC clean and clear of any blockages or debris to avoid overheating and maintain efficiency.
Faulty Blower Motor
If your blower motor is experiencing some issues, you may hear a high-pitched squeal or whistling sound. You may also experience rattling and loud screeching noises. The motor blower pushes warm air out of the furnace through the ducts into your home.
In general, it can take two to three hours to replace a typical blower motor. If a highly qualified technician has the part in stock, it can take as little as 1.5 hours.
Typically, the lifespan of furnace blower motors spans from a minimum of 10 years up to about 20 years, with most enduring an average period between 15 and 20 years. The same blower motor is used for both heating in the winter and cooling in the summer, making it essential for maintaining indoor climate control.
Repairing a blower motor costs anywhere from $150 to $1,500, depending on what went wrong. On the other hand, a full replacement might cost upwards of $2,000 once you factor in labor costs. So if your repair estimate is sky-high, you might get a better value with total replacement.
Blower Motor Resistor Test
Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Okay, let's say there's no melting going on, but your fan doesn't work on all speeds. Typically, if the fan will work on some speeds but not on others, the resistor is suspect.
Blowers. From this table, blowers have an average effective life of 15-20 years.
On average, the total cost can range from $280 to $560, with labor taking one to three hours, depending on the complexity of the job. The location of the blower motor can affect labor costs, with some requiring the removal of a significant portion of the front dash to access the firewall.
The replacement of the blower motor is common and straightforward, so most shops will perform the repair — many on the same day.
Step 1: Prepare the vehicle
Start by disconnecting the negative battery terminal, and set it aside someplace where it isn't touching metal. If applicable, remove the passenger-side floor mat. Typically there is a plastic cover underneath your glove box.
On some platforms, a faulty blower motor relay will cause the blower not to work at all, which means there will be no airflow from the A/C. On others, the blower won't work on “high blow” but all the other speeds will work. The blower motor relay fails because it regularly deals with high current loads.
Beyond temperature control, the blower motor also facilitates air circulation and ventilation within the vehicle. It helps distribute fresh air from outside or recirculate air from within the cabin, preventing stale odors and ensuring a clean and pleasant interior environment.
A car blower motor develops problems due to: Electrical problems such as faulty switch, blown fuse, damaged resistor or control module, bad relay (if it uses one), and corroded, melted, or loose connectors. Debris becoming lodged in the blower motor fan assembly.
If your motor's electrics and bearings are constantly exposed to too much heat, then they will begin to fail. If you let your motor overheat repeatedly and fail, then either a component has broken or a bearing has seized.To prevent overheating, check your vents, filters, and in-room airflow.