Maytag dryer squealed loudly while running. Replaced belt and idler pulley wheel, didn't fix squeal. Now but started to smell hot. Got it started and smelled funny within one minute, so opened door to see if something was burning....all clear, but was hot and smelled funny. closed door and will not start. Just loud buzz. Now does not start ONLY loud buzz (same sound as end of cycle buzz) Replaced blower wheel, no luck, replaced idler wheel and belt and front glides, no luck. Changed motor...the shaft or end bell was way off center so was told to replace motor. It is all cleaned and thought was repaired. It does nothing but buzz when the start button is pushed!, no matter how long you hold button down. Drum manually rotates fine, belt OK...!! Help what do I do next?