We bought the 70" Grand Vista fan in March of 2009. In January 2010 the light on the fan began flashing on and off. We had an electrician check the wiring and wall switch to the fan. He concluded that the trouble must be in the fan. We called Hunter Fan customer service and were treated rudely. When we finally got the rep to listen to our problem, she knew exactly what part was bad but stated that it would be April before the part could be shipped. April arrived and we got a letter stating that the part would not be shipped until May 7. The company has no concern that we are without the lights for 4 months. Since the fan is still under warranty, we feel that the Hunter Fan Co. should at least offer a replacement. I will never buy another Hunter Fan product.