Automotive Resources

Car information and technology

Meldew odor coming out on aircon vent

Evaporator is the main component of the car air conditioning system that makes the air blows cold from you’re car air conditioning vent, the process is that when the car air conditioning unit is turned on, an air is blown from the blower and passes through the fins of you’re car air conditioning evaporator which then comes out thru you’re car air conditioning vent as cold air.

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Warm air coming out your car air conditioning vent

More often this kind of problem can be traced depending on the behavior of your car air conditioning system. If your car air conditioning vents initially blows out cold air then after quite a while it starts to blow out warm air then the problem can be traced to a freezing up expansion valve. If your air conditioning expansion valve freezes up the flow of refrigerant to the air conditioning lines will be block temporarily thus causing your car air conditioning vents to blow out cold air initially then afterward begins to blow out warm air. Your car expansion valve can only be freezing up if there is moisture on the refrigerant and this moisture can only be entering via leak on your car air conditioning system.

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Air Barely Blows Out the A/C Vents

Whenever your car air conditioning barely blows out air from air conditioning vents, the first culprit that you will come into your mind is the blower, and most often the cause of the problem is a failing blower or sliding blower wheel from the blower motor shaft, another reason is that your blower might be suffering from a faulty dashboard blower switch assembly, if this is the case the blower will not operate on maximum operation even if it was set on the highest setting.

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A/C Vents Blows Warm Air

When your car air conditioning is blowing hot air, this means that refrigerant cannot absorb the heat coming from your car passenger compartment.

This kind of problem often cause by a refrigerant leak or a clogged condenser. If you have a steady reduction of cold air from your car air conditioning system, the possibility is that the refrigerant is slowly leaking out of the hose or seal.

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