Purchased new Samsung electric dryer and after 1 1/2 yrs of heavy use here is the problem: Control panel lights up sounds like its going through start cycle first the chime then, click then just a buzzing that appears to be coming from main PCB. Drum will not turn. I took front off checked the components with ohmmeter all ok. was able to hold door switch and "push start" drum and it ran fine. stopped the dryer and tried to start it with panel ....bell, click then buzz. could it be a bad motor relay switch?