Santa FE SM (2001-06) :: 2003 - A/C Quit Blowing Cold

I currently own a 2003 Hyundai Santa Fe with 135,000K miles on it, and have had continual problems with the A/C not blowing cold over the last year or so.

A year ago, took it to what I thought was a reputable mechanic (not a dealer) who diagnosed the problem as a "bad" master circuit board. Thing ran fine for about 6 months, then started to intermittently blow warm air, until it finally quit blowing cold.

Finally broke down and took it to the dealer hoping they would be able to fix the problem. They charged me $110 and told me the refrigerant was low so they topped it off. 6 weeks later, once again not blowing cold, took it back. They said this time they found a "leak" in the refrigerant hose, replaced the hose, topped off the refrigerant, and sent me on my way (free of charge, of course, since they should have fixed it the first time).

Well...6 weeks later and once again, not blowing cold, so back to the dealer I go. Once again, they said the hose was "leaking" and they did the dye test (shouldn't they have done this the first time?) and replaced the hose, and the refrigerant. Good for another 6 weeks, then once again, not blowing cold.