There are a couple of options.

EDIT: YOU SHOULD HAVE THE PRESSURES TESTED TO VERIFY THAT YOU HAVE A LEAK IN THE SYSTEM.

Look around each connection in the system and look for signs of oil leaking. There may be a buildup of dust.

You can add some R134a with UV dye, then run the system. You would need a UV lamp to find the leak(s).

Did you do the a/c work? If so, what did you do on the a/c system? Why did you convert in the first place?

Do you know how to work on the a/c system?

 

PAHonda -

I did not do the work and it was recommended by the mechanic when I request to get my ac charge to get it cooler. he told me that r12 will no longer be available sooner or later and that i would need to covert it either way. now i regret making that decision and refuse to take it back to the mechanic because i no longer trust him.

-pab

 

PAHonda -

I was just wondering, is it possible that the a/c pressure switch could have gone out? Will that cause the ac to not work?

-pab

 

PAHonda - how would i go about testing the pressure? do i just get a gauge and connected to the low side?

-pab

 

If the work was just done, then the mechanic should fix the problem that did the work on the car.

A/C systems are not very complicated, so hopefully the leak can be found. The leak could be anywhere.

I doubt that the pressure switch went bad. The only way to know is to have the pressures tested using an a/c manifold. I would take the car back to the place that did the work.

 

so, what is the procedure to test using a manifold?

~pab

 

I have a 97 Accord ex and the ac compressor won't come on and it is charged, the low pressure switch won't activate the compressor when I jump it. Also with my paper clip inserted I gave it 12 volt's and the fan came on. Is there anyone that can give me advice I switched relays checked fuses, the ac button lite come's on when pushed and the blower works the compressor came off a working car yesterday, installed it vacked it down charged it 3/4 the way, Help???? I know my way around pretty good Help???

 

A background question: What was the issue with the old compressor?


From here there are a series of questions/tests. Do you have a volt meter? Lets start simple, sorry we are not there so need to walk thru this.

Measure the resistance across the pins of the ac pressure switch, what does it read?

Key on, ac button on, blower on- What is the voltage on the RED/WHT (using a 94 manual) and body ground?