Have a Wine Enthusiast three compartment (each with its own temp control) that no longer cools. Fan works and light comes on but no cool air. Called the company and they said need to replace the main board but that involves three different bds and each cost like 60 dollars. Can't believe that all three went bad within months of each other. Can I try to replace capacitors or do anything else before I order the new boards. It is a thermoelectric system so no compressors or condendsors as I understand it. Thanks.