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Why does the car air conditioner stop cooling just a few days after recharging the refrigerant?

3 Answers
RicardoFitz
07/29/25 2:21pm
Reasons why the car air conditioner stops cooling just a few days after recharging the refrigerant: 1. Insufficient power supply voltage, preventing the compressor from operating normally: It is recommended to install a voltage regulator. 2. The cooling capacity of the air conditioner is too small: Consider these factors when purchasing an air conditioner. If the configuration is unreasonable, the air conditioner must be replaced. 3. The external ambient temperature is too high: This issue cannot be resolved. 4. The air conditioner has not been cleaned or maintained for a long time: It is recommended to perform cleaning and maintenance. 5. The copper pipe connecting the indoor and outdoor units is too long: Adjust the installation method. Below is an introduction to air conditioner maintenance: 1. Comprehensive inspection of the air conditioner: When using the air conditioner for the first time in summer, inspect the air conditioning system first, such as checking the refrigerant and whether the air filter is too dirty through the liquid storage tank, and whether there are foreign objects in the radiator. 2. Pay attention to the cleaning of the air conditioner: The air filter should be replaced regularly; otherwise, the air conditioner will produce a musty smell. In addition, the condenser should also be cleaned regularly, and the water tank should be removed for thorough cleaning.
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Julie
08/13/25 6:36am
I've encountered the issue of the air conditioning not cooling right after recharging the refrigerant several times, mostly due to leaks in the system. The refrigerant slowly leaks out, possibly due to aging seals or loose pipe connections. After recharging, a pressure test should be conducted to locate the leaks, otherwise, it's just a waste of money. Additionally, dust accumulation in the evaporator or a clogged condenser can also lead to poor cooling, affecting the compressor's efficiency. Driving without cold air on hot days is really uncomfortable, so it's recommended to clean the evaporator box during regular maintenance. If you're doing it yourself, buy a simple pressure gauge to test and fix any issues promptly.
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PatrickRose
10/10/25 8:37am
I usually love tinkering with cars. If the AC isn't cooling right after adding refrigerant, it's likely a compressor failure or pipe blockage. When refrigerant pressure is insufficient, the compressor automatically shuts off to prevent damage. Or it could be poor electrical contact or a blown fuse. Last time I checked, the fan wasn't spinning, causing poor heat dissipation and AC failure. Don't neglect maintenance - clearing debris can extend lifespan. Watching YouTube tutorials to DIY repairs can be fun, but for complex issues it's best to consult professional mechanics. Ensuring system sealing integrity is a critical step.
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