Q: Q: Heater problems

asked by on

The heater on my car takes a long time for the heater to blow hot air. The air is not that hot. And only works on high

The most common symptom of a failed blower motor resistor is when the fan works in "High" speed, but doesn’t work in some lower speeds. The highest speed setting may still work because in most cars in the highest fan speed settings the current bypasses the blower motor resistor. In some cars, if the resistor is failed, the fan may stop working completely. Another reason a blower motor resistor may fail is when the blower motor has a mechanical problem or when a foreign object jams the blower motor fan blade and prevents it from spinning freely. This leads to increased current through the resistor and causes it to overheat and fail. I would suggest having an expert from YourMechanic come to your location to diagnose your AC/heater blower motor to determine what may be causing the fan not to work properly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Heater problems

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car makes noise, automatic window switch, and wiper fluid sprayer not working

A car can make a wide variety of noises for a wide variety of reasons, especially under load, so I would recommend having the vehicle driven by a knowledgable technician so that a conclusive diagnosis of the noise can be...

Q: My Taurus just got an EGR sensor replaced, thinking it was the solution to my acceleration problem.

Hi, thanks for writing in. This is a common sign of a failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior...

Q: Overheats at idle, too cool while driving.

Hi there. What diagnostic tests were performed on those parts before replacement? What were the results vs. the specifications? It almost sounds like either a coolant temperature sensor fault (there should be more than one) or a controller/computer fault. If...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...