Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What are the symptoms of a faulty car air conditioner blower resistor?

2 Answers

Rose

08/27/25 3:30am

The symptoms of a faulty car air conditioner blower resistor are the inability to adjust the airflow, with only the maximum or minimum airflow available. How to locate the blower resistor: After parking the vehicle and engaging the handbrake, press the hood release button in the cabin. Open the hood and secure it with the support rod. Remove the firewall, and you will find the blower resistor fixed with screws on the blower, just below the windshield wipers. How to test if the resistor is faulty: Prepare a multimeter and set it to the ohmmeter mode. Place the red probe on the positive terminal of the resistor and the black probe on the negative terminal. Then check the reading on the multimeter. If the reading is zero, it indicates that the resistor is faulty.

Was this review help?

8

2

Share

Brown

09/09/25 2:41am

When the blower motor resistor fails, the most obvious symptom is the complete loss of fan speed control. The fan may only blow at the highest speed, with no response at low or medium settings, or it may stop working altogether. I've experienced this issue before—during summer drives, being unable to adjust to a comfortable airflow was unbearable. Additionally, if you hear buzzing or unusual noises when operating the fan switch, it often indicates poor contact in the resistor module. Ignoring this could lead to overheating, affecting other circuits and increasing repair costs. It's advisable to inspect it early: you can first check if the fuse is intact or visit a repair shop for a straightforward replacement. In short, a faulty resistor significantly degrades AC performance, impacting daily driving comfort. For those with DIY skills, testing whether the fan operates at maximum speed can help confirm if the issue lies with the resistor.

Was this review help?

8

0

Share

Expand All

More Forum Discussions

What is the speed limit on the Shenji Expressway?

Shenyang section speed limit is 120, Jilin section speed limit is 100. The following is a detailed introduction about expressway speed limits: 1. Maximum speed: Expressways should indicate the driving speed of lanes. The maximum speed should not exceed 120 kilometers per hour, and the minimum speed should not be lower than 60 kilometers per hour. On expressways, the maximum speed for small passenger vehicles should not exceed 120 kilometers per hour, for other motor vehicles it should not exceed 100 kilometers per hour, and for motorcycles it should not exceed 80 kilometers per hour. 2. Minimum speed: According to the "Road Traffic Safety Law Implementation Regulations", if there are 2 lanes in the same direction, the minimum speed for the left lane is 100 kilometers per hour; if there are 3 or more lanes in the same direction, the minimum speed for the leftmost lane is 110 kilometers per hour, and the minimum speed for the middle lane is 90 kilometers per hour. If the speed indicated by road speed limit signs is inconsistent with the above lane speed regulations, drive according to the speed indicated by the road speed limit signs.

What are the causes of abnormal noise during transmission downshifting?

The causes of abnormal noise during transmission downshifting are: 1. Faults in the transmission's clutch, brake, buffer, or valve plate; 2. Insufficient transmission fluid. The functions of the transmission: 1. To change the transmission ratio and expand the range of torque and speed variation of the driving wheels to adapt to frequently changing driving conditions, while allowing the engine to operate under favorable conditions; 2. To enable the vehicle to reverse while maintaining the engine's rotation direction; 3. To interrupt power transmission using neutral gear, allowing the engine to start, idle, and facilitating gear shifting or power output. Transmission maintenance: 1. Regularly change the transmission fluid; 2. Frequently check the fluid level; 3. Avoid coasting in neutral; 4. Clean the transmission periodically; 5. Avoid forcibly disengaging gears; 6. Reduce the time spent idling to warm up the vehicle.

Is 92 or 95 octane gasoline better?

Gasoline octane ratings do not indicate quality, but rather reflect different ratios of isooctane. Whether to use 92 or 95 octane gasoline, it is recommended to carefully read your vehicle's owner's manual, which typically provides recommendations and detailed explanations. The fuel tank may also have labeling indicating the appropriate octane rating. Gasoline octane rating: The octane rating represents the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. Higher octane ratings indicate stronger anti-knock performance. Standard gasoline is composed of isooctane and n-heptane. Higher octane ratings are not necessarily better; the appropriate gasoline octane should be selected based on the engine's compression ratio. Difference between 92 and 95 octane: The gasoline octane rating represents the gasoline's octane number. For example, 92 octane gasoline consists of approximately 92% isooctane and 8% n-heptane. Since isooctane has better anti-knock properties and n-heptane has poorer anti-knock properties, higher octane ratings indicate higher octane numbers, meaning the gasoline has better anti-knock performance.

What to do if the driver's license has expired for three days?

If your driver's license has expired for three days, the renewal process is the same as the normal renewal procedure. The motor vehicle driver should bring the required materials to the vehicle management office where the driver's license was originally issued to apply for renewal. The vehicle management office will process the renewal within one working day after approval. In addition to applying for renewal at the vehicle management office, you can also apply for renewal through the following methods: Renewal through the "Traffic Management 12123" APP. Download the "Traffic Management 12123" APP, then select Service Center -- Expired License Renewal Service -- Fill in the information. The new license is generally delivered by mail. Visit the "Police-Medical-Post" service point at a postal business hall to handle the renewal. The entire process, from registration to medical examination and new license production, takes only half an hour. Currently, only a few cities have this service, such as Hangzhou.

Is Sinopec 92 the same as PetroChina 92?

Sinopec 92 and PetroChina 92 have certain differences in raw materials and composition. Gasoline from different brands comes from different crude oil sources. Most of Sinopec's crude oil is imported (mainly from the Middle East). PetroChina, on the other hand, has many domestic oil fields, primarily located in northern regions such as Daqing, Liaohe, and Karamay, so its crude oil is largely self-sufficient (domestically produced). In terms of raw materials alone, imported crude oil uses superior additives, making its quality slightly better than domestic crude oil. Additionally, Sinopec employs world-leading refining technology, resulting in a higher density of its gasoline compared to PetroChina's (Sinopec's gasoline density is approximately 0.76±0.01, while PetroChina's is around 0.72 to 0.73). Higher gasoline density translates to greater vehicle power, meaning Sinopec's gasoline is slightly more fuel-efficient than PetroChina's.

How is the reputation of the 2021 CR-V Black Knight Edition?

The exterior looks stylish, and it's quite easy to drive. Space was a major consideration when purchasing, and I'm quite satisfied with it. It comes with 19-inch alloy wheels and Michelin tires. The vehicle has some jerking at low speeds. The suspension is quite stiff, making it uncomfortable over bumps, and it lacks heated seats. Handling: The Lane Keeping Assist System works well on highways, adaptive cruise control makes highway driving effortless, and the automatic emergency braking is quite useful. However, being an SUV, its handling is far from that of a sedan, so don't expect much in terms of handling. Comfort: The leather seats are comfortable and don't get hot even without seat cushions. The automatic air conditioning is hassle-free, cooling the cabin quickly. Noise levels are acceptable but not exactly quiet, and the suspension is quite harsh over rough roads. Interior: The all-black seats look quite elegant. The infotainment system is a bit disappointing, with the voice control feature being rather useless—it's more of a gimmick. It does have Bluetooth functionality. The leather seats are comfortable, and there's minimal interior odor.

Trending Ranking

What does 'company-owned used car' mean?

How often should the coolant in a Fit be replaced?

What is the method for adjusting the height of the steering wheel?

Why does the phone still have sound after connecting to the car Bluetooth?

Is Chaoyang Hangda Tire the same as Chaoyang Tire?

What are the internal structures of a car?

What are the causes of the problems with the Baojun 560 DCT transmission?

Should the car air conditioner blue setting be turned all the way to the end?

Are the second-hand tires on Xianyu refurbished tires?

How far can the Hongqi H5 go when the fuel tank warning light turns red?

More Forum Discussions

What Causes the Smell of Burning Rubber While Riding a Motorcycle?

What does Huayu Automotive do?

Is Replacing the Left Front Fender Considered an Accident Vehicle?

Is it necessary to adjust the car seat if my feet are too small to reach the brake pedal comfortably?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.