WE PURCHASED THIS AIR CONDITIONER AND INSTALLED IT IN OUR DINING ROOM WINDOW ON 8/5/2002....SINCE THEN, WE EXPERIMENTED WITH THE TEMP AND OTHER SETTINGS, GOT IT TO THE POINT WHERE IT WAS PERFECT FOR US...THEN, WE USED ONLY THE REMOTE FEATURE TO TURN IT ON AND OFF...IT HAS FUNCTIONED PERFECTLY SINCE THE DAY IT WAS INSTALLED AND WE HAD A HOT SUMMER IN NEW JERSEY.