John Sheehan
Sub Zero door alarm was going off and doing a reaet did not work. Called Certified Refrigeration and got a call back from John within 20 mins. He walked me through how to adjust some wires on my own and the issue was resolved. He saved me the cost and time of having a service call. And assured me that he would come out and fix any other problem that might occur. Awesome honest advice! Highly recommend these guys!!!