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But a climate control system with no fan to push the air around is anything but controlled. When a Car Fan Won't Blow. As did the author of this letter, you want your fan back. Check out what he's been through, and why he should have asked an expert from the start. My problem is on a 1996 Dodge Caravan 3.3 liter.


With the car heater functioning smoothly, rides through chilling weather are possible. There are a lot of things that may go wrong with the heater assembly, which you may need to look into, before the onset of winter. Many drivers often report the problem of car heater fan failure, which renders the entire heating system useless.


How to Troubleshoot Car Heater Problems by Ross Glyn . ... Start the car and turn the fan and heater to the highest setting. Listen for the fan to engage when you flip the heater switch. If you do not hear it, it could mean that a fuse has blown. Step 3.


Problems with a blower motor resistor are common in many cars. The most common symptom of a failed blower motor resistor is when the heater fan only runs at the highest speed setting (4 or 5) and doesn't work at low speeds. In some cars, a failed blower motor resistor can cause a heater fan to stop working completely.


Its a good idea to check other like models to determine if there is a problem, or is it just operating as per design intent. Pictured on the right is an interior fan resister assembly from a late 70s GM car or light truck. Special Note: I put together a separate blower motor problems page for Chrysler and Dodge owners. The blower motor resistor ...


Blower motor problems video highlighting diagnostic procedures for Diy car mechanics and there's more information available below (Show More). Proper electrical diagnosis of automotive blower ...


Symptoms of a Bad or Failing Blower Motor Relay If the blower motor does not function, car fuses are blown, or relays are melting, you may have to replace the car blower motor relay. ... the vehicle will usually display a few symptoms that alert the driver of a potential problem that should be serviced. 1. Blower motor does not function.


Car heaters that don't blow at all. When a car heater doesn't blow at all, the problem is either a bad blower motor or something preventing power from getting to the blower. If the blower motor is getting power, it's probably a bad blower. If it isn't getting power, suspect the fuse, switch or blower resistor.


Also, a broken car heater will adversely affect the performance of your car’s defroster, which in turn hinders visibility, and limits your ability to drive safely. If you notice any issues with your car’s heater, ensure that you perform a thorough check of the system and get any problems fixed at the earliest.


Why Blower Motor Won't Blow - Simple Troubleshooting Tip ... but you would be amazed how many people will actually over react to a mechanical problem and run out and buy parts BEFORE they ...