SIR I OWN MODEL # SM 272YB FOR 5 YRS . BOUGHT THIS PRODUCT I THOUGHT I AM BUYING A SUPERIOR PRODUCT,FROM A REPUTABLE CO. THIS WAS THE WORST PRODUCT EVER PURCHASED. IN 5 YRS DISPLAY UIT HAD TO BE REPLACES 3 TIMES,TWICE WAS THE HEATING ELEMENTS. LUCKY I HAD EXTENDED WARRENTY. NOW WARRENTY IS OVER AND AGAIN THE SAME PROBLEM WITH THE DISPLAY UNIT , NOW YOUR CO.DOES NOT MAKE THE PART . WHAT ARE WE SUPPOSED TO DO. "YOUR REPUTABLE CO. DOES NOT EVEN STAND FOR IT." jrkeshav@yahoo.com DR KESHAV