A/C malfunction

Question

What could cause the pipe out the compressor of the car to be too hot, I mean too hot to be touched with a bay hand, while the pipe after the condenser is slightly warm or rather normal.Then I noticed the cooling effect of the evaporator is slightly cool?

Solar Mike · Answer

The compressor compresses the gas which raises its temperature (based on Boyles and Charles laws), goes to the condensor to be cooled.

The purpose of the evaporator is to provide cooling, so what is wrong with it being slightly cool?

user9181 · Answer

Pipe from compressor is always hot. Compressing refrigerant causes heat. Pipe from condenser should be cooler than pipe coming into condenser from compressor. See this post for temp measurements

A/C malfunction

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