Hi! I had a new AC put in 2 years ago. Last year, at the beginning of the season, it didn't seem to be cooling well. I went and looked at the unit and discovered that the pipe leading up into the condenser was frozen solid. I had the company that install it come out and take a look and was told I was out of freon. The tech said she could do a leak test for $400 or put in freon for $40. I didn't have $400, so I went with the refill. Everything went great all summer, so I thought maybe it was just a fluke.
Fast forward to present day.....Started up the unit again this summer and just like last year, after a few weeks the pipes are frozen - including the pipe leading to the coil upstairs. Now my question is do I go ahead and request a leak test or do I just have the inside coil replaced. When the outside unit was installed, they didn't replace the inside coil, which I have come to find out since, should have been. What are the odds that this is the problem? The inside coil is about 11 years old and was installed with a heat pump unit (if that matters). The new unit is a straight 4 ton AC.
Also, I know the filters aren't an issue - we replace every month. I'm not planning on calling anyone out until tomorrow - why does this stuff always happen on weekends and/or holidays???