Reasons and Solutions for Electric Vehicle Air Conditioning Not Cooling

[DeJune]

Here are the reasons and solutions for car air conditioning not cooling: 1. Insufficient refrigerant in the car air conditioning: If the car air conditioning has been used for too long, the refrigerant may be depleted, leading to insufficient cooling and affecting the air conditioning's performance. Solution: Refill the air conditioning refrigerant. 2. Leakage of refrigerant in the car air conditioning: Once the refrigerant leaks, both the indoor and outdoor units of the car air conditioning will operate normally, but there will be no cooling effect, resulting in the air conditioning not cooling. Solution: Check the car air conditioning system for damaged components such as pipes, the air conditioning pump, condenser, or evaporator that may cause refrigerant leakage, then replace the faulty parts. 3. The condenser of the car air conditioning is too dirty: If the car air conditioning is not cleaned after prolonged use, various impurities can cover the condenser, preventing it from dissipating heat properly. This leads to excessive pressure and temperature in the air conditioning system, causing the air conditioning pump to stop working to protect the system. Solution: Use a high-pressure water gun to clean the condenser's cooling fins, then dry them with a high-pressure air gun. 4. The air conditioning filter is too dirty: A dirty air conditioning filter can block the filter, obstructing most of the cold air and making the cooling effect unnoticeable, leading to the misconception that the car air conditioning is not cooling. Solution: Clean or replace the filter. 5. The car is not started properly: If the car is not started properly, the air conditioning cannot function normally. The air conditioning may blow air but not cool. In this case, the car cannot move normally, and the steering wheel may feel particularly heavy. (This situation may occur in hybrid vehicles.) Solution: Turn off the car, press the brake and clutch pedals fully, then restart the car. Once the car starts normally, the air conditioning will work properly.

[VanGemma]

Well, I’ve been driving an electric car for several years and have encountered sudden air conditioning failures a few times. The most common issues are refrigerant leaks or insufficient levels, which can happen due to system aging or loose connections. Another problem could be a faulty AC compressor—since the compressor in an EV is battery-powered, unstable power supply or component wear can cause it to stop working. Don’t forget about clogged filters; too much dust buildup can block airflow and hinder cooling. Solutions? Start with DIY checks: inspect the fuse box and replace any blown fuses; clean or replace the filter; if refrigerant is low, get it refilled at a shop. For complex issues like compressor failure or electrical problems, visit a professional service center for diagnostic tests—don’t attempt repairs to avoid making things worse. Extra tip: get a pre-summer maintenance check, regularly replace filters, and inspect the system to save money and stay safe.