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Typically, issues with the air conditioning in a Land Rover Defender stem from refrigerant leaks, problems with the AC compressor, or issues with the blower motor. The AC compressor, in particular, is often the culprit. This component plays a key role in circulating and pressurizing refrigerant within the system. When the compressor malfunctions, a common indicator is warm air blowing from the vents. Additionally, you may notice unusual noises like squealing or grinding coming from the compressor. On the other hand, if the blower motor is the problem, you might still feel some heating or cooling at the vents, but the airflow will be significantly reduced. This decrease in air pressure will be noticeable across all fan speeds and temperature settings.
Typically, air conditioning troubles in Land Rover Defenders stem from refrigerant leaks, problems with the AC compressor, or issues with the blower motor.