What can cause an AC blower motor to stop working?

A number of things could cause this to happen, from tripped circuit breakers to a faulty thermostat. However, it is also possible that the blower motor has stopped working. Typically, blower motors have a very long life. One sign of a faulty blower motor is an air conditioner that still runs without blowing cool air.

How do you know if your car AC fan motor is bad?

Signs That Your Car’s Blower Motor Is Going Bad

Weak airflow. This is one of the first signs of a bad blower motor that people tend to notice.
Noises. Have you noticed any unusual noises coming from your vehicle’s HVAC system?
Smoke or smells.

Is there a fuse for the AC blower motor?

The blower motor is powered by a fuse-like device called a relay. If your heater or air conditioner does not blow air through the vents, this could indicate that the blower motor fuse has probably blown. While replacement is easy, the exact location of your blower motor fuse may vary from vehicle to vehicle.

What are the signs of a bad blower motor resistor?

Symptoms of a Bad or Failing Heater Blower Motor Resistor

Blower motor stuck on one speed. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting.
Blower motor does not work on certain settings.
No air from the vehicle’s vents.

Why is my inside AC fan not working?

If your AC indoor fan isn’t working, first check to make sure a breaker hasn’t been tripped. If all is OK, check your air filter. If it’s blocked, then you may be able to fix it yourself. If there’s ice on the evaporator coil and refrigerant lines, allow the ice to melt, then check again to see if the fan is working.

Why is my AC running but not blowing air?

The most common problems that cause a lack of airflow include frozen coils, broken fan and restricted airflow due to dirty air filters or vent obstruction. However, there are many other issues that can lead to minimal airflow, so it may be necessary to ask the professionals.

How long does an AC fan motor last?

about 12 years
The average lifespan of an AC fan motor is about 12 years. An AC fan motor can last more than 12 years if it’s kept clean and cooled as needed. On the other hand, without annual maintenance checkups, your fan motor may only survive between one and three years.

Where is the fuse for the AC blower?

To protect the blower motor power circuit, a 20-, 25- or 30-amp fuse is usually located in the fuse panel under the dash.

How much does it cost to replace a blower motor resistor?

The average cost for blower motor resistor replacement is between $108 and $137. Labor costs are estimated between $44 and $55 while parts are priced between $64 and $82. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

How much does it cost to replace an AC fan motor?

When your air conditioner’s fan motor breaks, it will typically cost about $300 to $600 to replace. It’s imperative to get this fixed quickly, since without a working fan motor your air conditioner’s compressor can be the next domino to tumble. Its repair is even more significant — usually running closer to $2,000.

How do I reset my AC blower?

How to Find and Reset your Furnace Motor Blower

Step 1: Turn off the power to the furnace.
Step 2: Remove the blower compartment cover.
Step 3: Make sure the blower is completely cooled off.
Step 4: Locate the reset button.
Step 5: Press the button in (assuming that this is your issue and that the button has popped).

What should the fan temp be on an Impala 3.8?

Stock fan turn on temp is low at 220 and high fan is around 225-230. Since the motor is all aluminum, unlike the 3.8, they can get away with it. Click to expand…

When to turn off the fans on an Impala?

•When A/C is requested and the ambient temperature is more than 10°C (50°F). •A/C refrigerant pressure exceeds 1310 kPa (190 psi). •After the vehicle is shut off if the engine coolant temperature at key-off is more than 117°C (243°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes.

Where are the fan relays on an Impala?

In your lower underhood fuse block on the passenger side, there are three relays that control your fans. They go #3 , #2 , #1 (L to R I believe). #1 controls the primary cooling fan (driver’s side), #2 is the cooling fan control relay, and #3 is the secondary cooling fan (passenger side).

When to turn off the coolant on an Impala?

•Engine coolant temperature exceeds approximately 103°C (217°F). •When A/C is requested and the ambient temperature is more than 10°C (50°F). •A/C refrigerant pressure exceeds 1310 kPa (190 psi). •After the vehicle is shut off if the engine coolant temperature at key-off is more than 117°C (243°F) and system voltage is more than 12 volts.

Why is the AC not working on my Chevy Impala?

While there are a variety of reasons your Chevrolet Impala air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.

Stock fan turn on temp is low at 220 and high fan is around 225-230. Since the motor is all aluminum, unlike the 3.8, they can get away with it. Click to expand…