Elitair D3-30SS Range Hood switch replacement. This hood has a 4 push button switch- 3fan+off and 1 light. The light switch has gradually failed and no longer works. I attempted to remove the switch assembly but was unable to remove it from the stainless steel frame without bending the metal, which I did not attempt. Is there a trick to removing the switch and are replacements available? This unit was installed around 2006.