Any A/C Experts, Quick Question

[err76]

Took the truck in to the dealership to get a couple things fixed under warranty. The A/C was taking 15 minutes to cool down, they said that ti was over pressurized. Does this make sense?

 

[DevilDawg3097]

Im not an expert, but too little or too much freon can cause havoc on the a/c.

 

[Scrambler1]

Having too much refrigerant in the system will make it difficult for the refrigerant to change state and transfer heat. You're actually lucky you didn't "slug" the compressor. Basically taking a glob of oil into the compressor, think of it as pouring water into one of your truck's cylinders. Both have bad results.

A better question is how did it become over charged? Have you had any part of the A/C serviced recently? I've never heard of a system gaining charge on its own, losing yes but not gaining.

 

[DevilDawg3097]

previous owner may have thrown a can or 2 of recharge. Only thing I can think of.

 

[err76]

Having too much refrigerant in the system will make it difficult for the refrigerant to change state and transfer heat. You're actually lucky you didn't "slug" the compressor. Basically taking a glob of oil into the compressor, think of it as pouring water into one of your truck's cylinders. Both have bad results.

A better question is how did it become over charged? Have you had any part of the A/C serviced recently? I've never heard of a system gaining charge on its own, losing yes but not gaining.

Just purchased the truck 3 weeks ago. Found a few problems with it so I am getting them worked out at the dealers expense.

 

[fastestbrickonearth]

go buy a cheap gauge to put on the low side port of ur ac system. you should have a reading im guessing of about 35 psi. if its too high press the valve steam till u get it down some. too much pressure is dangerous

 

[eddie102870]

the dealers ac machine may be old and possibly hasnt been serviced in a while. they need checking also. ive seen some with too much oil have problems cooling too.