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What are the reasons why the car air conditioner cannot produce heat?

2 Answers

StHarper

07/29/25 2:43pm

Reasons why the car air conditioner cannot produce heat: 1. Clogged heater core: The heater core structure is a simplified version of the engine radiator, with multiple small cooling pipes inside that are prone to clogging, similar to the radiator; 2. Insufficient coolant in the cooling system: The warm air from the car air conditioner comes from this component, and its principle is different from that of home air conditioners. Insufficient coolant in the cooling system is a common and easily resolved fault phenomenon. The car air conditioner is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car compartment to the optimal state, providing a comfortable riding environment for passengers, reducing travel fatigue, creating good working conditions for the driver, and playing an important role in ensuring safe driving as a ventilation device.

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SanGavin

08/13/25 7:11am

I just encountered an issue with the AC not heating up. After spending some time tinkering with it myself, I found that it might be due to low coolant levels or a clogged heater core, as the coolant is a key component in transferring heat. If the fluid level is low or circulation is poor, the car interior won't warm up. I also checked the blower fan—if it's not spinning or the airflow is weak, the heat won't come through, making winter drives very cold. Additionally, if the blend door actuator, this little component, gets stuck or is set to the wrong mode, the AC might only blow cold air and forget to switch to heat. I recommend using a thermometer to measure the vent temperature for diagnosis, instead of guessing blindly like I did and wasting effort. If you really can't figure it out, head to a repair shop promptly to avoid catching a cold on the road, which could affect safe driving. Regularly checking the cooling system and replacing the antifreeze can prevent such issues. If you're handy, you can top up the coolant yourself, but make sure to follow the manual's instructions.

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Is the Roewe i5 Equipped with an Aisin CVT Transmission?

Roewe i5 is not equipped with an Aisin CVT transmission, but rather a CVT transmission independently developed by SAIC. The transmission, also known as a gearbox, is an automotive component used to alter the speed and torque from the engine, and to fix or change the gear ratio between the output and input shafts. The transmission consists of a gear transmission mechanism and a control mechanism, and can be categorized into stepped, continuously variable, and integrated types, with functions including enabling reverse driving, interrupting power transmission, and changing gear ratios. Taking the 2021 Roewe i5 1.5L Manual Platinum Edition as an example: it is a compact 4-door 5-seater sedan with dimensions of 4607mm in length, 1818mm in width, and 1489mm in height, a wheelbase of 2680mm, equipped with a 5-speed manual transmission, and a top speed of 185 kilometers per hour.

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Can a Dash Cam Record When Turned Off?

A dash cam cannot record when turned off. Below is a detailed introduction to the working status and functions of a dash cam: Working Status of a Dash Cam: Generally, when the car is turned off, the power supply to the dash cam stops, and the dash cam remains off when the car is not in use. Functions of a Dash Cam: A dash cam can record video images and audio of the entire driving process, providing evidence in case of traffic accidents. It helps document accidents or prevent fraudulent claims. With a dash cam, you can present evidence to better determine liability in an accident, safeguarding the driver's legal rights. The dash cam can clearly replay the scene 20 seconds before and after an accident, effectively preventing the fabrication of fake accident scenes for insurance fraud.

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