Neither am I an expert. But I do have gauges and the knowledge of the Internet and friends on this forum.
I have added a little freon but the low pressure side never went up. Also the sight glass is solid liquid, both of those signs said do not add any more freon. I did not add anymore than 5-6 oz's.
It never was very cold to begin with and I should have take it I when I first bought it but because others said the dash air does not cool very well, I just assumed. Now I am wanting to do something about it. It does okay but the low pressure side shows something is amiss and I don't want to hurt the system or wait till it goes out.
Is it hard to clean the orifice? I don't mind buying a vacuum pump and trying myself but it could be a costly mistake.
What do others say. Please keep in mind I am not made of gold so I would like to try myself. (though my DW says I'm cheap).
Thanks for y'all's replies.
2013 Georgetown XL 378
2008 Honda CR-V