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Home » Driving Lessons » Emergency Tips » AC not working

if your car AC is not working well, this page will help you out to diagnose the system in few minutes.


Car Air Conditioner is made up of Highly durable Complex engineered components.


Compressor belt




Expansion valve

Receiver & Drier



Blower Fan

Ventilation system

Heater Core

All of the above components are necessary for the air conditioner system to function properly. maintaining the desired temperature in the car cabin for you and your co-passengers

Air conditioning for Traditional Vehicles

The air conditioner system in most traditional fuel engines will not turn on unless the car engine is turned on. The main reason for this is that the compressor unit of the air conditioner system must be turned using a belt that is connected to the engine. When we turn on the air conditioner, the compressor engages the clutch. The compressor puts more strain on the engine. As a result, the use of air conditioning has a significant impact on the mileage of a vehicle.

Air conditioning for Electric Vehicles

The air conditioning system in electric vehicles is a little different. In electric vehicles, there are two batteries. The main battery is in charge of the propulsion and the air conditioning system. The car’s accessories are managed by the auxiliary battery. If the battery charge percentage falls below 10%, the AC system will be turned off by EV (may vary according to manufacturers). So, if you’re driving an electric vehicle and the air conditioning suddenly stops working, check the battery %.

We’ll go over some simple troubleshooting tips for our members in this article.

#1 : Refrigerant low pressure / Leaks

ideally, There is no need to top up or refill the refrigerant. However, the air conditioning platform is built to be kind of complicated. A minor leak in piping or components can cause the AC system to fail. The absence of cooling in the cabin after turning on the air conditioner is the first indicator of a gas leak.

#2 : Condenser / Radiator Fan Fails to Start

The failure of the fan responsible for maintaining air flow into the condenser or radiator is the second most likely issue.

You can discover this problem by turning on the air conditioner and listening to the fan. If the fan does not turn on during the first few minutes, there is a problem with the fan or fan’s starting sensor system. Please note that a car travelling at 50 kph or more will receive sufficient air flow into the condenser, therefore you will not experience any problems when driving.

#3 : Thermostat Failure

The data acquired by thermostats is used to control the entire air conditioning system. If one of the thermostats fails to provide data, the regular operation of the air conditioner will be disrupted.

#4 : Coolant leaks

It’s a little confusing, but it’s true for the vast majority of automobiles. Engine and radiator temperatures quickly rise when coolant circulating through the engine leaks and evaporates. The condenser and its pipes are close to the radiator, allowing the heat to be transferred quickly to the AC system. If the situation worsens, the engine will be unable to handle the compressor’s load, which will result in the compressor clutch being disengaged for safety concerns. As a result, the air conditioner had to be turned off. Overall, low coolant levels can be devastating to your vehicle’s cooling system and air conditioning system.

I hope that this article will assist you in determining the specific cause of AC system failure.

Search terms : #AC A/c malfunction, Air conditioner not working, hot air from ac, solve ac problem,


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