Coming home from vacation to no A/C is a bummer. After seven years in harmony on the roof two small copper pipes decided to vibrate together to create a pin-hole resulting in the total loss of the R-22 coolant. On the upside it was relatively easy to find with soap bubbles and repair with sand paper, heat and solder. On the downside R-22 is expensive especially when the unit needed 230 oz. Desert Valley Aire was very responsive and the A/C was back on line within four hours of the original phone call. It was a task where an expert was required.\r
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